Search for cutting metal in Topics


Metals

Ok first... i wasnt really sure where to post this but Science topic seemed the closes so i need to know whats the strongest metal(s) but still can be bent.. shaped, and cut, im trying to make 4 blades equal in length and height maybe 1foot tall each but could also be made to have room towards the middle to add some kind of gears or something to make it 'bend' back and forth (i'll attach a picture to give an idea what i mean) also, how much would it cost?

Topic by saiyankev    |  last reply


diamond cutting steel.... Friction cutting?

Recently got a diamond wheel for angle grinder.   tho it is marketed to cut tile, marble, etc, i tried it on steel.  cuts quick enough, but leaves huge burrs. burrs 4x thicker than the workpiece.   seems the blade just melts and squishes the steel out of the way.  it works, kinda, leaving a hazardous ragged edge on the work... i see why they dont market those blades for  steel. im reminded of friction cutting blades.

Topic by Toga_Dan    |  last reply


Laser cut sheet metal

I just got a couple designs back form the laser cutters. This is 12 gage sheet metal cut with a 2400 watt laser. Pretty cool right? It’s amazing the kind of edge it can leave behind. Just wanted to share with everyone. This is part of my ambition for putting together project kits, which help you create items from metal. Soon I’ll have a kickstarter campaign going to help launch 13 kits. These particular designs are based off of the salamander pendant and Excalibur letter opener.

Topic by Mrballeng    |  last reply



Cutting a square hole? Answered

This is a really basic question—I have managed to get to 66 years old and still be a complete handyman novice, I have tried but my best efforts are lamentable. I think it is because I have never had anyone to show me handy things and have never asked anyone so turning over a new leaf I am determined to start making a few things instead of spending a fortune buying them and paying people to do things for me. My first project is to make a simple slide carrier and I have bodged one up in cardboard but it really needs to be in something stronger so it is rigid, metal would be ideal but very stiff board would also do if I can not cut the metal. I do have a thin sheet of aluminium, (from the casing of an old laptop) that I would like to use buy am frightened of messing up & worse injuting myself! I now realize that I have no idea how to cut a square hole in a piece of metal or, for that matter, what tools I need to cut aluminium in the first place! My overiding consideration is to be safe so I don't want to try, (what to me is a daunting task but probably to you guys the simplest of things) not knowing what I am doing. So can someone please help me out and tell me what tools I need and how to go about cutting a square hole in a piece of metal? Rest assured I will not do it if I do not think I can safely. Thanks.  

Question by Allsop    |  last reply


Trying to cut bike frames ( for physically impaired person ) ?

Hello once again, I've sorta been sneaking around trying to decide what the best way to go about trying to cut ( basically a bike frame ) without doing it manaually and = or spending too much cash I dont have. Welders look like they'd require a high skill level to hold and I cant really hold- or in fact even BE near things- that causes high or noticable rpm , so the hacksaw doesnt seem too great an idea either . But what i was thinking ,was that I could use some of sort of clamp set up so that I didnt have to hold the hacksaw while cutting the frame ( its really a knee walker frame ) If this seems like a good idea or  any one has any other suggestions or ideas that might allow me to do this  , i really appreciate your opnion on the best way I should go. thanks hele

Topic by hele    |  last reply


Metal Cutting using CNC Router

Hi, I am wondering if a CNC Router can be used to cut 1/8" or less thickness aluminum. Although my shop is primarily a wood working place, I do get into some metal stuff at times (I have gas and electric welders, drill press, etc) and I am in the process of restoring a 1952 Piper Tri Pacer airplane at the moment. I want to design and build (I have AutoCAD 2011) a new instrument panel for the airplane as well as some other small aluminum parts. None of these would be more than 1/8" thickness material and likely not even that. Anyhow, I was wondering if I could install a milling bit in the router and use it to cut this lightweight, relatively soft aluminum. Does anyone have experience with that? Thanks! Michael Woodland, WA

Topic by aw1929    |  last reply


How to cut porcelain steel

Hey everyone! Here's a good one for anyone interested in new techniques! I have some porcelain steel I'm trying to cut and I was wondering if anyone has an idea, tool, or technique that i should try to cut the porcelain coated steel with that won't chip the edges of the ceramic. The porsaline steel is .017" thick the ceramic is .007" inches thick. If anyone could design something that I could use it would be greatly appreciated!

Topic by 2001warrior    |  last reply


making a very powerful sun beam

Hi there,  I  have a question and perhaps you could be of help to me, So my question is ,  is it possible to use cheap Mylar blankets(parabolic form) to concentrate the sun light, so as it would be able to cut through metal. My idea is to use 3 Mylar sheets each  1m square  which will reflect the light towards another  one which will work as a collector and then further concentrate the light to about half a millimeter.  Doing the math (0.5mm²/3m²) is more than 16 million (ok there  will be a lot of loss , lets say 50 percent). The question is, is this worth trying cause i don't want to waste time and money on this. So if someone knows why this wont work , it would be very helpful. thanks in advance

Topic by Z3r01f1n1ty    |  last reply


Laser Cutting service

We are offering an affordable solution for high precision cutting. Based in London (UK). Maximum sheet size for cutting: 600x450mm, max thickness 6mm. Can cut all sort of plastics, wooden materials, MDF, etc... Can not cut Metals. Check our ebay page for more info, and feedbacks: Precisioncutting.  

Topic by precisioncutting    |  last reply


Fine tip marker for guiding cutting/engraving small metal?

This is probably a simple question, but I'm having trouble finding something that works. I'm looking for a marker to make guide marks on where to cut or engrave metal. This is for jewelry, so I need a fine tip since it's small metal. It needs to be permanent enough to withstand the cutting/engraving while still being able to be washed off once I'm done.

Question by Ingulit    |  last reply


Meet Online Metals

We met all sorts of interesting people at the Austin Maker Faire!The Online Metals booth was just across the way, so we stopped by to inspect their wares. They've got a great array of metals and plastics that should prove useful for all sorts of projects, and since it's all available online should make life easier for those of you who don't live right next door to a supplier. They cut everything to size, are willing to handle small orders, and even have a useful blog. Good stuff, and friendly people. We're thinking of running a contest together in the spring, so keep your eyes peeled.

Topic by canida    |  last reply


How to design laser metal cutting Machine?

I have to cut 5 mm thickness 'C' channel

Topic by RameshB37    |  last reply


Metal cutting blades in fine woodwork - is it common? Answered

My grandfather did a lot of very fine woodwork -- the man was an expert. We inherited a bandsaw and some blades a while back and we replaced the blade (a wood blade) with a blade that appears to be a metal blade. I'm certain it is a metal blade. Has anyone heard of a metal blade being used in fine woodwork?

Question by The Ideanator    |  last reply


Cutting with an Oxy/Mapp torch?

Does anyone here know how to cut metal with an Oxy/Mapp torch? If so, how? Thanks in advance

Topic by IlluminatedAntichrist    |  last reply


easiest metal to work with

Can any one tell me which hollow meal rods are easiest to work with? I am thinking about building a hammock frame that will support at least 170-200 lbs. ( i weigh 160 but it never hurts to hold more). I wouldn't necessarily need to bend the metal rods but they should be relatively easy to cut. I want to stay away from hard wood and copper if possible. At first i was thinking about using pvc but i don't know how much it can hold. I only have hand tools and a power drill. Please feel free to post any suggestions. If you have a better way to build a hammock frame please post it here. If i figure it out ill post an instructable. I uploaded the top view and side view of my design. it was drawn in paint for brain storm so its not very detailed

Topic by srikar06    |  last reply


How do I make a shaped metal punch for sheet metal?

I need to cut some 1-inch metal shapes.  They will also have holes inside them, so I might need two punches.  So, how do I make punches to cut out these shapes?

Question by jeeps123    |  last reply


UK Laser Cutting and Etching

We're offering a 20% discount on our regular prices  to all UK Instructable Pro members who need laser cutting or etching of acrylics, leather or wood. For some examples of our recent work see. https://www.instructables.com/id/Jayefuus-Blog-Roundup-August/ https://www.instructables.com/id/Negative-Laser-Metal-Etching/ https://www.instructables.com/files/deriv/F1Y/55SO/GB3W26ZY/F1Y55SOGB3W26ZY.MEDIUM.jpg Our pricing is based on 50 GBP/hour machine time. Etching is considerably slower than cutting.... Contact me via PM for details and a quote. Steve

Topic by steveastrouk    |  last reply


How to cut wax master out of silicone mold without damaging it?

I am planning to cast jewellery by generally sand casting with wax models, though I would like to make more permanent silicone mold backups if something happens to the original wax master. My plan would be to pour or press silicone onto the wax master and get it out after the silicone has set. The only easy way I know of doing this is to cut a line all around the silicone mold to retrieve the wax master. I know other people seem to do this. I can't see how you could do this though without accidentally scratching the wax master inside?

Question by lsadwdwadw    |  last reply


How do those Harmony balls, or Baoding balls, actually work? Answered

The most I've gotten is it's a "sphere within a sphere and there's a bell", but I don't want to cut one of mine open. Is it an ancient chinese secret.? I thought it might be like a rain stick with thin metal soldered to the inside surface with a loose ball to strike them.

Question by SSmithers    |  last reply


How to cut a vinyl record?

Hi. i wanna build a frame like this: http://www.greatgreengoods.com/2008/06/10/recycled-record-frames-and-coasters/but i dont know how i can cut the record. i tried so far a carpet cutter, glass cutter, i tried to stamp out with a hot metal but nothing worked. any other suggestions???

Topic by Stadtwerk    |  last reply


Ribbon Cutting at Pier 9

Yesterday (Thursday September 12th) was the official ribbon cutting at Pier 9.  There were many people in attendance including Autodesk CEO Carl Bass and San Francisco Mayor Ed Lee. In Instructables' tradition of being nontraditional, the ribbon was made of metal and cut by Carl with a grinder. Tours were given after the official cutting to those who haven't yet experienced the awesomeness of our workshop! Read some more in the article on San Francisco Business Times.

Topic by Penolopy Bulnick    |  last reply


Any thoughts on what I can do with 30 (approx) 12"x12" stamped metal tiles(different colors, styles)? Answered

There aren't enough to use them as ceiling tiles on my back porch, and they are very difficult to cut.

Question by Que2    |  last reply


What technique would be recommended for cutting through thin gauges of sheet brass and copper (Preferably cheap)?

I am currently trying to find a solution to a year and a half long problem I've been working at, and was hoping the community could help me out.  I ma trying to create miniature armatures that will always have the right proportions by etching the 'skeleton' out of thin brass (I believe it's somewhere around .02 inches thick).  I've tried toner transfer and ferric chloride etching, but I am not getting steady results with the toner transfer.  Since this isn't a circuit board, are there any other techniques I can use to cut through the metal quickly?  If it's something along the lines of a CnC machine, as long as I can make it to cut down on the costs, I'm open to the idea.  Just to give you an idea of what I'm trying now, at the moment I'm making stencils that I will spray acrylic or spray paint through onto the metal to allow for the same design every time.  Acrylic and spray paint are also resistant to ferric chloride. Thanks

Question by ajpaulette    |  last reply


"Sonic" drilling or cutting

If we look up sonic drills today we usually get some fancy machines driving pipes in the ground, preferably softer ground.But the term includes all types of machines that use sonic vibrations to advance through a media.With the ancient and claimed to have never existed technologies in mind I did some digging...In the food industry vibrating knifes are quite common, same for "air knifes" on softer food.Even in the meat industry they find more and more uses now.Ultrasonic cutting or welding is the same thing and included in "sonic".Same for some experimental sub sonic drilling methods currently being tested.The general idea might be as old as using vibrating equippment to compact stuff, like concrete, bricks and so on.What you can compact by vibration you can also make "fluid" by vibration.Industrial feeder systems utilise this to the extreme by even making light and fine particles like flour move like water without causing any dusting.What all the techniques have in common that a suitable tool or tool head is used and that it is attempted to use the most suitable vibration frequency for the job.Anyone operating an ultrasonic welder knows the pain of finetuning for a new electrode or just new part to be welded.What does that tell us now that makes the understanding easier?Take a bottle of ketchup, preferably one that is still quite full.Turn it upside down and noothing comes out.Shake it a bit and you are either lucky or drowned in red.But hold it at an angle and start tapping it and the red sauce flows out easily.What it true for most newtonian fluids is in some way also true for non-newtonian fluids.Ever mixed corn starch and water to make these funny experiments with it?Hit it hard and it reacts really hard and is not sticky at all.Leave your hand resting on it and in sinks in and sticks to it.Stirring it very slowly is easy, go faster and you get stuck.You can do similar things with by using an external source for vibrations.For example a vibration speaker mounted to a smal cup of the goo.If you place sand on a sloped piece of plastic or sheet metal then at a low angle it will pile up easy and stay.Start vibrating the plate and the sand will start to flow off.Works fine with a vibration source mounted to a piece of steel bar or rod and a bucket of sand too.Trying to press it into the sand requires a lot of force, especially once you are a bit deeper.Let it vibrate properly and it slides rights down.If we can do the simple stuff as well as really complicated stuff in the industry then what about other materials?So far we use vibrations to make things move out of the way, compact things, transport them or to heat them up for welding plus some cutting applications.Considering the variety one might wonder why no one tries it for "difficult" materials.Machined surface can be found throughout ancient history.Finding "machined things" were vibrations was clearly used is a bit harder.The great walls are not a perfect example here as the views differ quite a bit on how they could have been created.But if we leave things melting them or a secret concret like recipe for creating for example granite then vibrations start to make some sense.You find some interesting videos on youtube where people use speakers, wires and rocks to confirm you can actually "machine" them by vibrations.Especially granite has some quite musical properties, big boulders as well as smaller ones produce destinct sounds when you hit them hard.Tests and measurements were made on granite and other hard rocks to check how fast sound travels in them , how it is refeclted and where the sound comes out or affects the surface the most.Lets just say every sample gave different results.Shape, density and dimensions affect not just the resonant frequency but also where and how the sound travels in the rock.What if??We can use a simple speaker, a plate and some rice to see how patterns form under various frequencies.Works with sand or other granules as well.The interesting patterns are the so called harmoncis.Here we see clear and destinct patters, sometimes with extremely fine lines and areas of softly vibrating granules.Some people say these harmonic frequencies have all special meanings and uses.We mainly used them to avoid problems.Imagine your new TV would not have a housing tested to be stable with all frequencies the speakers can produce.All of a sudden your back of the TV might start to rattle ;)Same for car engines.Harmonic vibrations are eliminated wherever possible.Otherwise they could multiply and affect other things in the engine or around it.Simply put it means we have various options to detect and measure vibrations on a surface or in a system.Back in the day every half decent backup generator had a mechanical indicator for the frequency of the supplied electricity.A set of tiny forks with the desired on painted red and several on either side of it.These forks were designed to get into harmonic and therfor quite intense vibrations at their set frequency.If the one for 50Hz looked blurry then all was good ;)The same principle god be applied on a big boulder of granite.Place the "vibration meter" at the desired spot and start moving around the vibration source on the surface until you find a spot that causes maximum response on the meter.Best thing here is that if you then place that surface area onto another peice of fixed in place granite both pieces will start to loose substance if vibrations are applied.The fine sediment forming is then usable as an indicator where to move the vibration source to continue once the effect literally wears off.Is it feasable?Well, if we trust mainstream science then the answer is no.A huge amount of vibration energy would be required for such a hard material, despite ancient proof that says otherwise.Semi industrial test also seemed to confirm the theory as only with very high amplitudes (loudness) and while automatically adjusting for the resonant frequency changes a measurable amount of material was removed.I struggle a bit with that as for the testing tool heads made from hardened steel or carbide were used.And that with little or no regards on how the head and tool itself affects the output.I mean in terms of having the max possible movement happening right t the tool contact surface!There is a huge difference between applying a vibration to a tool and using a system, tool and tool head DESIGNED to work at the desired frequency!Otherwise we wouldn't need a computer to design and test a horn for welding purposes or shade a knife spefically so that the vibration go along the right axis and in the right direction.You not break a hard thing with a very soft thing unless it travels fast enough to become harder as the target!This complicated explanation basically just confirms that if you hit water at a too high speed then it will just break you into pieces instead of offering a soft splashPlease do not jump of bridges or such to confirm this yourself!!If that is really true and science says it is, then how about the other way around?Works fine too, or we wouldn't have pressure washers or water cutters.Now for the part where I hope some really smart people leave helpful comments:If we can cut steel with just a stream of water, then I ask:Isn't for example copper much harder than water?Steel is much harder than copper but water cuts through it.The answer here it simple or complicated, depending on how you want to expain how it works.Comes down to speed and pressure plus the right nozzle shape to prevent a beam expansion.But then water is indeed "harder than steel".Questions:Lets say we would use a copper pipe that in lenght, thickness, hardness and diameter is optimised to transmit a frequency so the pipe end sees the max vibration like a feed horn for ultrasonic welding.Not to hard to calculate these days :)Now imagine said "main frequency" would be optimised for the pipe but also be a harmonic frequency of the rock to be worked on.The pipe end would deform quickly, abrasion does the rest and it fails before even making a decent sratch that is not copper metal on granite.No matter how hard we press nothing good enough will ever happen.BUT: If we would add more hormainc frequencies to feed our pipe we can multiply the amplitude quite easy!Just try with a sound generator from your app store, needs 2 or more channels to be usable.Pick for example 400hZ on one and 800Hz on another, then finetune around these number to hear how the tone changes ;)My theory goes like this:If all "working frequencies" would just harmonics of the resonant frequency of the granite, then they can be tuned so the effect on the pipe end is minimised.The overlaying frequencies however should result in the same effect a water cutter has: The pipe becomes ultra hard.The better the match and the more you have to get it right the harder the pipe will be.Adding now a "drilling frequency" or multiple could be used to drive these harmonics slightly out of phase.Like with the sound generator on your phone we end up with a pulsating sound, or vibration.While the pipe still vibrates at the same "hardening" mix the drilling frequency creates a peak like a jackhammer.Try it by using the heaphone output on a small speaker and placing some light and tiny things into the cone.The will violently jump around during these pulsing tones.For a drilling system the output can be mechanically maximised by utilising a pitchfork design.A head holds the vibration speakers and the tynes are tuned good enough to the frequency of the speakers.Always two would have to operate in sync though as otherwise the pitchfork movement that transfers the sound down the center bar won't work.This head could then be desgined to act as a holder for a quick change of work out pipes that are no longer long enough for tuning.I guesstimate that a well tuned design would result in a copper pipe being able to drill at least 10 to 15cm into solid granite before it wears off too much.And we are talking here about just a few mm to get the thing out of tune!But would dare to desing such a thing just to confirm a theory that no one ever really dared to test? ;)And if friction welding works as good as ultrasonic welding, then what would happen if we try this with the right frequencies and vibrations instead of wasting tons of energy?

Topic by Downunder35m  


Need a 30 watt "LASER"

Looking for an inexpensive laser cutting/engraving system. I will be taking it apart and  customizing it to fit onto another machine.  Currently, we have a rotating blade to cut sheets of material, but this set-up causes many issues.  A contact free solution would be best.  So I want to mount the laser carriage above the cutting area; the rest of the laser parts will be contained in a metal cabinet under the machine.  The laser would need to be able to travel 12-16 inches in 1-2 seconds and cut through 1-5 mil paper/poly material. I have a fair amount of experience with lasers, I have know how to sight them in and understand the technology.  We currently have 45, 100 and 400 watt galvo head lasers, as well as a 90 watt XY laser set-up. So, what website would you direct me to, to purchase an inexpensive laser system?

Topic by benjaminleebates    |  last reply


What the right material for me?

Hey Community! What type of material is best for making robots, small boxes, and platforms? What inexpensive tools can I buy for cutting them? 1/4 or 1/8 inch acrylic would be perfect, but I don't have a laser cutter. Can you cut small pieces of acrylic with a handsaw? Same thing with wood, I have no idea how to make cut small pieces properly. Metal? Is that even an option? Wood seems to be my only option but I don't know where to get it or how to cut it. If I buy 1/8 inch ply I cutting plywood is annoying, since it's made up of layers. Is 1/8 plywood what I want to use? Is there some other type of thin wood I should use? Basswood is OK but most of the time it's too thin and very expensive. I have a good dremel but trying to cut along a strait line with those dumb grinding wheels is very difficult. Where can I buy really small nuts, bolts, and washers to use with wood/acrylic?

Topic by HavocRC    |  last reply


How to Make a precision metal tube?

I recently bought a mini metal lathe. I'm making an airsoft gun on it, and i need to make a barrel. The particular gun I'm making is the ppsh-41 (for all of you guys that play cod5, you know what i'm talking about! and for those who don't know, it's pronounced peh-peh-sha), which requires a barrel length of 270mm (found from the blueprints). This is just under a foot, and about the max my lathe can handle (but mind you it can still handle it! ). For an airsoft barrel, the inner diameter should be 6.01mm (as BB's are 6 mm in diameter and you want a tight seal for max accuracy). How can i create a precision barrel like this? My plan for the most part is to take a brass tube with an ID slightly smaller than this, and put it on my metal lathe and then fine tune the inside. The only problem is is that i would need a 1 foot long (or i suppose 6 inch long if I go from both ends, but it might affect the bb where the 2 cuts meet at the center) cutting tool that's less than 5mm (leaving some room for error) in diameter, and won't flex pretty much at all along it's 1 foot length. Or does the flex part not matter because it would flex a consistent amount the whole way? Anyone ever do something like this before?

Topic by guyfrom7up    |  last reply


What is a good sheet metal fabricating source?

I have done a few searches and found numerous online fabricators that do a range of things from laser cutting to finishing. Are there any recommendations - ones that I should stay away from or that have a good record? On another note, I would love to support a local business or have a local shop do it for me so are there any places anyone knows of that are native to Cincinnati, OH. Google Maps hasn't really helped (or the phone book for that matter), any help is appreciated!

Question by mweston    |  last reply


Convert broken metal bandsaw blades to hacksaw blades

My son-in-law had a broken metal cutting bandsaw blade. I did not want to bother trying to weld the broken blade, grind it smooth, and then try to temper it. I used a 12" hacksaw blade as a guide and drilled holes in the broken band. Cutting to length was easier than I expected. I used an ordinary tin snips. Drilling was easier than expected, too. I got three hacksaw blades from the band with a few inches of surplus.

Topic by Phil B    |  last reply


Cutting or chopping packing peanuts for re-use?

How to cut packing peanuts (polystyrene mostly, although possibly also biodegradable) into pieces that can be used in pet beds? I wondered about putting p-nuts into metal garbage can, cutting hole in either metal top or piece of plywood thru which I could insert a "weed whacker" and trying that ... but don't want to buy an otherwise unnec. WW if this won't work!  I read elsewhere about using a blender -- figured that was suggested by someone who'd never tried it!  (1) Don't want to dull blender blades -- and figure static would make it almost impossible to remove the pieces of foam, and (2) It would take forever to cut enough to fill a 3' X 4" dog bed. Thanks.

Question by RustyRoller    |  last reply


I want to make a R2D2 for Halloween

I've decided i want to make a R2D2 for Halloween. I'm pretty sure i can make most of it from scrape metal but i don't know where i can find something that's like the head on R2D2. I need a metal sphere that i can cut in half, any ideas?

Question    |  last reply


Update on the layered metal weapons/props

Hello to everyone who took the time to read this update/list. So I have not forgotten about my promise to upload the Solidworks files and cutting plans. However that will be taking a backseat to finals until summer break. I will however go ahead and list off the items finished, in progress, on hold, or currently only in Solidworks form. Finished -6in Axe: 3lb head on an oak clad 1/4in steel flat bar about 20in long total -3in Tomahawk/Axe: 1.25lb head on a para cord wrapped 1/4in steel flat bar about 20in long total -27in BoneSplitter: 3.2lb aluminium reinforced steel construction. -18in BoneCracker: 2lb aluminium reinforced steel construction. -18in All steel BoneCracker: 3.5lb steel reinforced steel construction. More square handle and better center of balance than previous version In progress -10in Bearded Axe: 3.25lb head. To be mounted on oak clad 1/4in steel flat bar handles 18in, and 30in long. -10in blade Pugio: Model made of mild steel for practice and training. Needs to have bevels, and fullers ground plus handle and guard mounted. -8in blade Pugio: Model made of mild steel for practice and training. Needs to have concave edges, bevels, and fullers ground plus and guard mounted. On hold -14in Blade tester: Simple test bed modeled after BoneSplitter to test viability of various band saw blades(Metal and Wood cutting) for use as cutting edge for mild steel blade carriers. On hold due to the band saw blades being too hard to drill through. Only existing as Solidworks files --27in Revised BoneSplitter: 4.5lb Aluminium reinforced steel construction. Better center of mass and more square handle than MY           previous version. --37in blade Bastard sword: Aluminium reinforced steel construction. Should be very close in terms of center of balance and stiffness when compared to its hardened steel companions.  --20in blade Stacked steel Gladius: Twin riveted steel support plates with detoothed metal cutting bands saw blade used for striking edges.  --blade Hispaniensis Gladius: Single piece of metal for the blade. --blade Cinquedea: Single piece of metal for blade. Multi fuller blade. --8in blade Pugio curved: Same as other 8in Pugio except for the convex curved dagger tip --14in blade Spear from Fullmetal Alchemist: May upload the variant of this in which the "wings" are separate pieces of metal. --3.25in square Warhammer: 8.5lb head Assembled from 13 1/4in steel plates pinned together. Front is covered in 3/8in spikes poking through a steel striking face to prevent separation of the plates. Back end is a 4in spike. --5.25 square Warhammer: 16.25lb head Assembled from 21 1/4in steel plates pinned together. Front is covered in 3/8in spikes poking through a steel striking face to prevent separation of the plates. Back end is a 4in spike. --Straight edged War Axe: 7lb head Inspired by Ironclad Industries' Riftclaw. Made from 7 1/4in steel plates pinned together. I am aware that the riveted and pinned construction of these items makes them inherently less durable and less corrosion resistant than single piece construction. However I am a college student who is working with mostly scraps and whatever has to be purchased. Since mild steel thick enough to carve the Warhammers or War Axe is not common scrap material around the college's machine shop the only way to economically create them is to use stacked plate construction. As for the BoneSplitter, BoneCracker, and Bastard sword the stacked plate construction is used to both reduce the weight of the item and stiffen it at the same time.  

Topic by tytiger33  


What can be cut with a 10W IR laser? Answered

I can get a 10W IR laser diode for real cheap and I want to know what I could cut with it. If anyone has any experience, please share your knowledge. I am especially interested in how tick wood can I cut and if there are any metals (and what thickness)  can be cut. Thanks in advance!

Question by ptkrf    |  last reply


What to use for a small crucible?

I want to make a small backyard aluminium foundry, but I don't know what to use as a crucible. I've seen soup cans, but it says they rust away, and ceramic shatters. I've also seen things like the bottom half of a propane/co2 canister, but I don't have thing like angle grinders to cut it open.  Also, how would I make the foundry? I was thinking of laying down fire bricks in a pattern like this: (from top, looking down) []==== []  O []===O < blower ====[] with mud to fill in the cracks. Would this work? Thanks, josh1324 PS. The two []'s and four ='s are just one brick.

Question by josh1324    |  last reply


Using aviation connectors instead of db-style connectors

Hello,I'm working on an arduino build that calls for a db9 connector, but cutting a nice, clean hole in a small, plastic project box for a db9 connector is difficult and messy. I would like to substitute a round connector so I can just drill a hole, and I came across "Aviation connectors." Would these be a decent replacement for db connectors? If so, why aren't they used more often? Is there some disadvantage when carrying a small (3.3v or 5v) DC signal? They are often rated for something like AC 200V 5A, which is total overkill, but would it be a problem?Here's what I'm looking at on Amazon: Hilitchi 32-Pieces 6 7 8 9 10 Pin 16mm Thread Male Female Panel Metal Aviation Wire Connector Plug Assortment KitIf this will work as well as the db9, I wouldn't mind buying the whole kit and having some round-hole options for other projects.Google searches have not been very helpful, and tend to give a lot of results for one or the other type of connector.Thanks in advance for any guidance!

Question by jeremy10    |  last reply


Laser type and power to cut holes in white paper? Answered

I am interested in building a machine to make pianola rolls. Pianola rolls encode the music in the the form of holes punched in a roll of paper. The holes are usually made by a metal punch or series of punches. I would like to make a unit that uses a laser to cut the holes (about sixteenth of an inch diameter). Thanks Andy

Question by andypandy92    |  last reply


What type of metal would work best to make the piano (piano?) in music boxes? Answered

 I have been wanting to make a music box in large scale.  The music box I am referring to is a mechanism that when a crank is turned, a metal cylinder attached to the crank revolves.  Attached to the cylinder are metal teeth, which pluck a piece of slotted metal, like in the picture below (which I will be referring to as the piano, because I have no idea what term is actually used to describe it).  Usually these can be found in bookshops, and commonly play "somewhere over the rainbow".   As I mentioned, I want to construct one on a larger scale.  The problem is, I do not know what to make the "piano" with.  I tried an old tin lacquer can, but the metal proved to be too flimsy to produce the sound required.  Then again, I don't want something too hard to where it cannot be plucked.  Which type of metal would be best suited? In my previous attempt, I just scaled the image below, traced and cut it out.  Is there something that I'm missing, or is it just the metal? I have been running dry on Google, and can barely produce any images of the item I am looking for.

Question by Doctor What    |  last reply


CNC protype service. Laser cutting and 5 axis milling.

Hello. I offer cnc prototype service.Serial work is also possible. Worldwide shipping to any country. Material: any ferrous and nonferrous metals,plastics and wood. Number of axes cnc milling center: 5 axis Laser cutting any ferrous and nonferrous metals, plastics and wood. (Maximum thickness  20 mm for steel.) Wire EDM cnc machine processing. Finishing: painting, polishing, electroplating and other. Detail size : any Minimal order: 1 piece. Format for drawing: Any digital format. Better SolidWorks or AutoCad. Shipping: Worldwide (EMS,DHL or other postal service) Payment: any Please contact: cnc5axiscut@gmail.com

Topic by cnc5axiscut  


I need to cut kind of thick plastic

I have these "universal" plastic speaker adapters:http://www.crutchfield.com/App/Product/Item/Main.aspx?g=103200&i;=142SA69&tp;=919But the hole in my car is too small to mount the speaker on top, and the hole in the plastic is just slightly too small to fit the surround of the speaker if I mount it from the bottom. I figure it will be a lot easier to widen the hole in the plastic rather than in the car's sheet metal, but it's still not easy. Any tips? I've tried a box cutter knife, pocket knife, soldering iron, torch with soldering iron attachment, chisel, etc. Probably gave myself cancer from the fumes from trying to melt it. It's not terribly tough plastic, but it's kind of thick, so it's not easy. Plus it's difficult to cut a circle from the inside. I need to increase it from 13 cm diameter to 13.5 cm.

Topic by endolith    |  last reply


how do plasma cutter power supplies work? Answered

I built a small stick welder, now i plan to build a plasma cutter i am going to buy the torch head because it seems it would be hard to make one(if anyone has an easy way to make a torch please tell me) but what i need to know is what goes into a plasma cutter power supply, right now i have 2 transformers (20 volts, about 30 amps) i know for plasma cutting i need DC current. how much voltage and current is needed. i don't plan on cutting any really thick metal this is just a little experiment i want to try. so can you please provide a schematic of a power supply and explain to me what the required outputs are

Question by twenglish1    |  last reply


Is it possible to electroplate carbon fiber? Answered

Hi, I'm into knifemaking. There are some carbon fiber knives on the market, but they all have very poor edge retention. (because the edge is made of carbon fiber as well) I was wondering if it would be possible to add a thick metal coating of a hard metal to a carbon structural center, as to coat the blade in a thin layer of metal. This metal would then be serving as the cutting edge, hopefully with better edge retention.  Is this at all possible? What types of metal could be used? Thanks in advance!

Question by jelte1234    |  last reply


Does anyone know of a way to make a paper hole punch in different shapes? Answered

I would like to be able to make some paper hole punches (like a tool used to make holes for paper that will go in a binder), but in different shapes and sizes. I know they would have to be in metal in order to cut paper, but I'm not sure where to start. I understand one can buy paper punches in various shapes, but they are usually expensive and you're limited to what size and shape the manufacturers "think" you want. I also don't want to go with a custom built paper punch, as they are expensive. Any ideas on how to go about making one?

Question by canucksgirl    |  last reply


Where do you buy tin-snips? Answered

 It can't be K-mart. We don't have K-mart. We don't have dollar store. We don't have Radio Shack. Actually we have a different version of the Dollar Store, but I couldn't find any tin-snips there either. I can't order online because I would have to pay $500 just for the shipping.

Question by nutsandbolts_64    |  last reply


How to repair a small metal joint? Polaroid SLR 680 camera.

I recently bought a £200 polaroid camera off e-bay for only £20. It was sold cheap due to a break on a hinge. I knew it was something I could fix, or that the camera might work with anyway. I am asking if anyone has any better suggestions for fixing this joint? So far my best plan is to cut out a small metal bridge, and attach it using epoxy resin. I have attached 3 pictures, an overall shot, a close up, and a comparison shot to the other side which is in one piece. They are all high res, so you can click on the images and view them larger for more detail.

Question by gmjhowe    |  last reply


Have a 9in Craftsman band saw and purchased a 62in metal cutting blade (62in blade is too small?

Have a Craftsman 9in Band Saw.  Needed a metal cutting blade.  Specs indicate a blade length of 62in.  Purchased one but it is too loose.  Checked all adjustable mechanics in saw - found none out of order...  measured band and it IS 62 inches..?

Question by mridgley    |  last reply


anyone got plan for a hand operated fly/platten press?

I need to make a small platten press for die cutting thin metal foils using cutting forms the foil is amaximum of a3 size

Question by trapper23    |  last reply



How to remove the metal in a CD or a DVD in a simple and ecofriendly way? I want to use the clear plastic.

I would like to upcycle the clear plastic  (polycarbonate) in CDs and DVDs to Make all sort of things like smartphone supports, boxes, structres, and so on. I have already bent, cut, polish the plastic by I haven't found a satisfactory way to remove the metalic layer. Thaks to you all. 

Question by gserrano701    |  last reply


a way to harden styrofoam? Answered

I have been working on a metal mechanical iris for a while now and have been looking for a few things, but one thing that has me scratching my head is having a base, or cam wheel. its just a circle with grooves in it. i decided to use plain styrofoam for this so it will be lightweight and easy to cut, but when i tried it the cam wheel easily crumbled with enough force applied. is there any way to harden styrofoam with a spray or something of that sort? it needs to be somewhat slidey, so it can move well, so nothing like a rubber spray.

Question by imBobertRobert    |  last reply