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


Drill holes in computer speakers? Answered

Best tool to drill 3/8 and 1/2 inch holes in computer speakers.

Question by keydogstony   |  last reply


Drill hole in glass bottle? Answered

 Dear All.. I would like  to drill holes(3 to 5 mm) on a many of glass bottles(beer bottle). Could you point me what kind of DRILL BIT ( see photo please) is better'.Thank you in advance for your time.

Question by lam   |  last reply


Ho to make a hole in a shelf?

I need to run some cables up the back of a built in bookshelf.  How can I make a neat hole if my drill will not fit, I am trying to avoid purchasing a 90 deg Chuck? I thought of using my small electric screwdriver but it does not have the power to drive the bit.

Question by Lylec   |  last reply


Which surface do I measure for pressure? Answered

So this is a fairly simple question, but here it is:  If you have a 5" pipe leading out of a pressurized chamber with a 6" inch disk covering the hole is the amount of pressure pushing the disk down that of 5" or 6".  I am pretty sure it is 5" because it has the equivalent pressure pushing the other way outside of that diameter.  Now if the 5" pipe had a bore of 5" and an outside diameter of 6" would the result be the same?

Question by jj.inc   |  last reply



How can I hole punch thin plastic page protectors in bulk? Regular punches don't work...?

Update: I found my answer, see comment below.  In short: I used a Carl Heavy Duty hollow-head Hole Puncher, and it works great! I've been using plastic page protectors (these, specifically) in bulk, say about 1000 a month.  However, I need them to be 8.5 x 8.5 and I also need to punch holes that are slightly off from the factory holes.  I'm basically using these as a cheaper alternative to 8x8 scrapbook page protectors (which are prohibitively expensive - say $1 a sheet or so). I've figured out how to quickly cut the pages (using a rotary cutter), and that works great.  However, I am still struggling to find a way to quickly & cleanly punch holes in these things.  The problem is that the plastic binds, stretches, and does not cut cleanly.  I need a very sharp & precise puncher to do this quickly, and I haven't found one yet. I've tried normal 3-hole punchers.  I can punch them one at a time, if I hit the punch hard, and occasionally it binds & sticks (since the plastic stretches instead of breaking and gets caught in the mechanism).  I've tried hand-held punches as well, same result.  Also, aligning each individual page is time consuming as well. The problem with paper hold punchers is that they're made for paper.  They're inaccurate, not sharp, but strong.  The cheap & heavy duty ones alike only differ in how much paper they can punch, but neither are sharp/accurate enough for thin plastic sheets.  Is there a high-quality razor-sharp & ultra-precise hold puncher out there?  I haven't seen any that look even close. I've tried holding them down & drilling them.  The plastic wraps around the drill bit and they rip to shreds. I also tried a leather punch, but the ones I got were much too dull - they just dented the plastic. The only thing that has had some success is a dremel 115 cutter bit.  That actually cuts into the plastic, and if I go carefully (eating a bit at a time) it'll go through a lot of sheets at once.  However, it's messy, takes a lot of setup, and leaves a very messy hole (all chewed up). Ideally, I'd love to line up 10 sheets or so, have a way to align them (a jig?), and then punch them all at once w/o any binding or sticking. Does anyone have any other ideas?  I've thought of melting a hole, but then the pages would all stick together.  I'm completely boggled - how can I do this?  What tool can I buy for this?  What method haven't I tried? Thanks guys!  Any suggestions are appreciated.

Question by jumpfroggy   |  last reply


What would be the best way to to drill/press/punch a perfect 3/4" inch hole into a big bottle cap?

I would like to put a 3/4" inch hole into a big bottle cap so I can connect a water valve through the cap.  What makes this interesting is that the Cap is very thin metal, and because a valve with a rubber washer is attaching to the cap it needs to be a perfect circle so water wont leak out.  Plus, I would like to be able to mass produce this item (100 an hr), so the method needs to be quick, clean and reliable.

Question by jarinator73   |  last reply


End of World One Step Closer. Or Not.

A vast physics experiment - the Large Hadron Collider (LHC) - reaches a key milestone this weekend ahead of an official start-up on 10 September.Engineers had previously brought a beam of protons - tiny, sub-atomic particles - to the "doorstep" of the LHC.On 9 August, protons will be piped through LHC magnets for the first time.The most powerful physics experiment ever built, the LHC will re-create the conditions present in the Universe just after the Big Bang.This last sentence is the one that's caused a little panic amongst certain groups of the population - they are convinced that the experiment will create miniature black holes which will fall through the LHC towards the centre of the Earth, where they will orbit around, gradually consuing the planet from beneath our feet.When the collider is commissioned, the beams will cross paths at allotted points along the tunnel, smashing into one another with cataclysmic force.My God, have these people never seen Ghostbusters??Scientists hope to see new particles in the debris of these collisions, revealing fundamental new insights into the nature of the cosmos and how it came into being. Now that is seriously cool (well, hot, actually) - to be able to recreate what the whole of reality looked like mere femtoseconds after it started...BBC storyCritics have previously raised concerns that the production of weird hypothetical particles called strangelets in the LHC could trigger the mass conversion of nuclei in ordinary atoms into more strange matter - transforming the Earth into a hot, dead lump.Earlier BBC storyAmusingly paranoid storyAnalog Magazine article

Topic by Kiteman   |  last reply


How to shrink an already drilled hole?

I am making a folding seat i found on youtube. It has several 5/8 inch dowels for the joints. To drill holes for the dowels, i went and picked up a new 5/8 inch bit for my drill. after cutting everything out and drilling the holes, i realized that the holes were too loose for the dowels; it wouldn't stay together. Rather than trashing it what could i do to save it?

Question by schoonovermr   |  last reply


need to cut a hole in an altoids tin? Answered

Right so im trying to make a speaker system for my bicycle and i have some smaller speakrs that i want to use an altoids tin as the box to mount on handle bars, but  i dont know what tool to use to cut the holes the speakers im guessing are about 1.5 inches in diameter.    or smaller.  anyone got any suggestions?

Question by unaffiliatedperson   |  last reply


How to stretch holes in a steel frame?

I ran into a glitch in rehabing an old park bench.  The wooden slats were rotted out, so I'm saving the wrought iron end frames and fitting them with new poplar slats.  I included a mid-project picture below of one of the end frames. I don't know if you can notice from the picture, the holes in the frame for mounting the slats were not in a straight line, but rather haphazardly.  So each board needs to be custom-drilled to match the mounting holes in the frames. Problem is, I originally measured the distance between the bolts on one of the old slats and used that measurement to drill ALL the new (expensive) hardwood boards.  I had made the careless assumption that the holes in the frames would be in a straight line. Never assume good workmanship! After drilling the slats, I applied about 5 coats of clear urethane spar varnish.  The new slats look supreme, and I don't want to zorkk them up by drilling a second hole in each board to match the stupid end frames.  So the only way out of the quagmire I can see is to drill the frame to match the boards.  OK! Problem is, most of the new holes in the frames would intersect the old holes, and I know that drilling an intersecting hole is problematic, especially in 3/16" steel.  So I need advice on how to stretch holes in steel into an oval shape.  I'm thinking some sort of router bit, or a grinding bit that I could use with a hand drill. Suggestions?  Thanks.

Question by LesB   |  last reply


Black Holes aren’t Black they are Gray?

Ok so 40 years ago Stephen Hawking came up with the theory of Black holes and today they are not black but gray. It turns out that the black holes Hawking wrote about in 1974 — those places in the space-time continuum that can devour galaxies and even trap light forever — may not exist in the way that he proposed decades ago. So I read the paper. http://arxiv.org/pdf/1401.5761v1.pdf I found it a bit dry compared to A Brief History of Time but that is the life of a paper. I have always believed a theory is just that and no more, prone to evolve or be disproved with the advent of new theories and facts. After all it is just a theory and not a fact even though many of these theories enable us to the most amazing things. Which reminds me of a joke. A Canadian fisherman was down south fly fishing with an American fisherman that happen to be a marine biologist. Soon the Canadian fisherman caught a one pound brook trout and stated it was just a baby and threw it back. The American marine biologist not objecting to catch and release, objected to the Canadian calling a one pound Salvelinus fontinalis a baby. He explained to the Canadian fisherman that the Salvelinus fontinalis is genetically unable to grow larger than one pound. The Canadian fisherman retorted I catch five pounders in the Boyne River all the time and that was just a baby where he comes from. The American marine biologist objected to the Canadian calling a one pound Salvelinus fontinalis a baby. Again he explained to the Canadian fisherman that the Salvelinus fontinalis is genetically unable to grow larger than one pound. Not wanting to argue the Canadian fisherman let the subject lye and spent the rest of the day fishing throwing their catch back. At the end of the day they exchanged addresses and parted friends. A month later the American marine biologist received a parcel in the mail in it was a frozen five pound brook trout, distraught he began to write the Canadian fisherman a letter. “Dear Mr. Fuddel Duddel Thank you for the five pound specimen of the Salvelinus fontinalis, and thank you very much for ruining perfectly good science with a fact. Sincerely John Doe”

Topic by Josehf Murchison 


How can I punch holes in a coke can?

I want to punch holes into a coke can - 1 hole each alphabet. I do not have any power tools and I want the holes in a manner so that the can is not crushed. Any suggestions?

Question by ab727   |  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


The Large Hadron Collider: is it worth it?

The Large Hadron Collider(LHC) is to be unveiled this year. It is designed to solve the much talked about energy crisis, and hopes to do so, but can it be worth all of it? From Wikipedia- (On October 25, 2005, a technician, José Pereira Lages, was killed in the LHC tunnel when a crane load was accidentally dropped. The construction of LHC was approved in 1995 with a budget of 2.6 billion Swiss francs, with another 210 millionfrancs (€140 M) towards the cost of the experiments. However, cost over-runs, estimated in a major review in 2001 at around 480 million francs (€300 M) for the accelerator, and 50 million francs (€30 M) for the experiments, along with a reduction in CERN's budget, pushed the completion date from 2005 to April 2007.[14] 180 million francs (€120 M) of the cost increase have been due to the superconducting magnets. There were also engineering difficulties encountered while building the underground cavern for the Compact Muon Solenoid. In part this was due to faulty parts lent to CERN by fellow laboratories Argonne National Laboratory or Fermilab (home to the Tevatron, the world's largest particle accelerator until CERN finishes the Large Hadron Collider). [15] The total cost of the project is anticipated to be between US$5 and US$10 billion.[2] On March 27, 2007, there was an incident during a pressure test involving one of the LHC's inner triplet magnet assemblies provided by Fermilab and KEK. No people were injured, but a cryogenic magnet support broke. Fermilab director Pier Oddone stated 'In this case we are dumbfounded that we missed some very simple balance of forces.' This fault had been present in the original design, and remained during four engineering reviews over the following years.[41] Analysis revealed that its design, made as thin as possible for better insulation, was not strong enough to withstand the forces generated during pressure testing. Details are available in a statement from Fermilab, with which CERN is in agreement.[42][43])

Topic by BkrevWlevqe   |  last reply


Without damaging the outer rectangle portion of 1/4" thick glass, how do I cut out a sink hole for a glass counter top? Answered

Does anyone know how to cut out a circle, or other odd shaped hole, in a piece of thick glass where the goal is to not damage the outside rectangular portion of glass and the inside shape is the waste piece?  My wife wants a glass counter top on the bathroom vanity but I can't seem to cut out the hole for the sink without breaking the glass.  I have a few pieces of salvaged 1/4" thick glass but I am using them up very quickly trying to figure this out on my own!

Question by marshgre   |  last reply


How to put a hole in a 3" glass float?

I have a bunch of 3" glass fishing net floats and I want to put a 1/2" hole in them to put LEDs in them to make them lights.  Any ideas on how to do it without destroying the float would be appreciated? I have attached a picture of what they look like. Thanks for any help

Question by rhargesheimer   |  last reply


looking for a special type of screw with an hole at the bottom for a pin to lock the screw. Answered

What is the name for that screw? and where can i get it? i what to lock the screw that it won't turn. 

Question by ComixDude   |  last reply



if i put holes in a guitar and if i play it holding a combination of holes shut will different sounds emerge? Answered

I need to know this for my upcoming project that combines holes like in a flute and strings like in a guitar. thanks!!

Question by sky0   |  last reply


How to repair a hole in a refrigerator curved plastic ice tray?

Our refrigerator ice tray has a 3 inch hole in the bottom. The hole is in the curved part of the floor of the tray. Is there a flexible plastic/acrylic I can use to repair the hole?

Question by readbob   |  last reply


How to drill a hole in the bottom of a stainless steel mixing bowl?

I would like to drill a hole into he bottom of a 3 quart stainless steel mixing bowl in order to insert a 1/2" brass needle drain cock (and then secure the valve to hold liquid).  How do I measure the diameter of the valve so I use the correct drill bit?  How do I get the hole centered.? How do I keep the pot stationary? The bowl is thin, how do i keep the bit from ripping the metal?

Question by angelikaengel   |  last reply


Can you change an acoustic guitars sound by drilling holes in it? Answered

I love my acoustic, it's a Kona K-2 lefty. but I was recently modifying my sisters old bass to make it left handed and I was moving the knobs so my hand wouldn't brush across them, getting rid of the need for the piece of metal that held them where they were. I liked the look of the piece and decided i wanted to put it on my acoustic. As you'll see in the picture, their are holes in the piece of metal where the knobs go, I was wandering of drilling where those holes are would modify the sound of the guitar significantly and if it could be beneficial?

Question by tieguy   |  last reply


Have we see the event horizon of the Galactic black hole?

A preprint submitted to the Astrophysical Journal (Ap.J.) last week makes a compelling case for conclusive observational evidence for an event horizon at the compact object Sagittarius A* (Sgr A*) at the center of the Milky Way galaxy. Recent observations with mm radio waves have determined Sgr A*'s mass , distance and diameter (Nature 455, p.78), which make it "very likely" to be a black hole, unless there is some sort of exotic physics leading to a compact, but still extended and visible, object at that location.This new paper uses very general arguments from energy conservation and radiative efficiency to demonstrate that it is "impossible" for the object at Sgr A* to have a visible surface onto which accreting material collects and radiates. While the authors go through calculations in standard General Relativity for demonstration, their results hold much more broadly than that, covering any gravity theory which includes stationary solutions (i.e., horizons).If there is an object with a real surface at Sgr A*, then all the material falling in must either give up it's full potential energy into radiation as it is falling, or we should see a separate, thermal spectrum from the surface of the object itself. The Sgr A* spectrum is extremely non-thermal; any thermal component is less than 0.4% of the total luminosity we see. That is equivalent to saying that the accretion efficiency (how much radiation you get from the falling material) must be at least 99.6%, compared to the actual efficiency estimated at 0.01 to 1% for Sgr A*.On the other hand, a "horizon" by definition is a position in space "below" which photons just can't get out. Material can fall through a horizon with no difficulty, but we will never see it, or any radiation from it, again. Whether there is a black hole or some other exotic object inside the horizon, it is invisible. The accreting material's luminosity may well be "low" (as observed); the rest of its potential energy is "lost" to our observation when it falls through the horizon.

Topic by kelseymh   |  last reply


How can I fix/patch minor car frame holes?

I bought a 98 Pontiac Sunfire for 400. I knew it would have its problems and even possibly rust (which i found in the frame). So far it seems isolated to a couple spots under the trunk. There is a hole around 3 inches wide and the other spot isn't an open hole (just rust). These are the only two problem areas I have found.

Question by TimeReverse   |  last reply


I need to get a hole in the bottom of a wine glass to put a string of lights in it..

I'd love to make some lighted wine bottles for a christmas present but have no idea how to easily (hopefully) get a hole in the back of the glass without shattering it. Any suggestions?

Question by Lindword88   |  last reply


I accidentally poked small hole in freezer cooling line, can I patch it with flex seal or something like it?

Was de-icing my haier mini fridge, when I accidentally punctured a tiny hole in  freezer wall cooling line, it hissed for like 2 seconds. Is it safe to plug back in? and can I patch the hole?

Question by brandon.salinas.319   |  last reply



I came across several steel plates, 2 stees blocks, and an alumanum block any ideas on what i could build with these?

The demintions of the steel plates are roughly as follows. 6"x9.75"x0.5in I also has a 3/4" hole drilled about 1 1/4" from the top. The next plate is about 3"x16.25"x3/4" it too has a hole that's 1" in dimater and 1 inch from the top. The next plate is really beat up but it's about 5.5"x4"x1/2" it has no holes. The next plate is 9"x2.25"x3/4" it has 3 holes the first one is 1.5" in diamiter and about 1.5" from the top the 2nd and 3rd holes are about 1" in diamiter and about 6.25" and 8" from the top. The next sheet is slightly bent somehow but its about 8.75"x3.5"x.5" it has 2 rows of holes each measuring 3/4" and the rows are 1.75" apart, there are 5 holes in each row and each one is 1.25" from the next the rows start 1.5" from the edge. That piece was hard to describe and I proboly didn't do a great job but now were on to the Blocks. The first block is 3.5"x2.5"x2" and has 2 holes on the 3.5"x2" sides that are 1" is diameter 1/2" from the sides and 2" apart. The next block is 8"x3.75"x3.75" with 2 holes. The hole are on the one of the 8"x3.75" sides and are 3/4" in diameter there 1" From the closest 2" side and centered (just as the holes are unless otherwise stated). And the aluminum block is 11.75"x2.5"x1.5" with no holes. If you guys thing of anything cool or useful I could build with these it would be much appreciated. If Anything was unclear please feel free to ask. Note: I messured the distances to and between hole from the center of the hole

Question by aloving95   |  last reply


How to Drill holes 1.6mm on SS321 Pipe thick of 0.2mm without getting Burrs

We are manufacturing SS Bellows for which we are making Holes of 1.6mm through a Drill on pipe dia of Various size wall thickness is 0.2mm what we find is when we drill from the top burrs form inside the pipe which is hard to remove,can anyone guide us by having any information on Punching Machine of miniature holes 1.6mm and 2.0mm or any small drill machine which can be drill from inside the pipe dia of pipe is 125mm

Question by abizerm   |  last reply


How do I remove rust from threaded hitch holes in a box frame? Answered

I have a 2002 Jeep Liberty and the correct hitch and mounting hardware (bolts and washers).  Unfortunately, the holes in the frame are very rusted from the 8 years of driving without a hitch.  I can't even get the bolts to seat properly.  I checked and made sure that they are the right bolts for the vehicle.  I tried a thread cleaner kit from a local garage but wasn't able to make any progress.  Soaked the holes with WD-40 but still no luck.  I can't put a nut and washer on the other side because it's a box frame.  I'm debating using a brass bristle brush on a drill to try to clean it out but that could ruin the threads.  Any ideas?

Question by connoljj   |  last reply


I recently poked a hole into my freezer while chipping away at the iceberg inside.?

No chemical smell was detected butI did hear a hissing sound and now it will not get cool or freeze. I do not believe I hit the freon source but rather some type of compressed air source. Can my unit be saved?

Question by daviddelie   |  last reply


How to tighten a nut on a threaded rod from the side, through a hole in a hollow tube?

Picture a threaded rod, with a hex nut on it. The rod is inside a hollow tube. You move the nut down the rod by inserting an outside hex wrench into the hollow tube from the top. But what if you only have access to the rod from the side, through a hole in the tube (which is fixed and can't rotate around the rod)? Is there a way to tighten a nut down a threaded rod from the side through a hole in a tube? Context: the application would be a grip for a fencing weapon. The base of the blade of a fencing weapon turns into a threaded rod (the tang). The bell guard (metal disc to protect your hand) has a hole in the middle, and is inserted onto the tang. The standard grip is a straight tube-ish thing (usually solid except for a hole the diameter of the tang). You stick the tang through the central hole in the grip. Then you stick a nut on the end of the tang (which just extends beyond the end of the grip) and tighten the whole assembly down. Some special grips are curved, which means that you have to bend the tang in a curve to match the grip first in order to fit it onto the tang. Another kind of grip is straight and hollow, with a plate with a central hole over the end butting against the bell guard, to give the nut a surface to press against, and the tang is cut much shorter than the grip, and you tighten the grip with an outside hex wrench from the back end of it, as I described initially. The advantage is that a shorter tang weighs a lot less, and the weight savings can be really good in fencing. I want to combine the advantages of these two types of grips- a curved grip, which is hollow and lightweight, with a tang that is shorter than the grip itself. Obviously, it would be impossible to tighten the hex nut through a curved grip, hence my question. 

Question by KattB5   |  last reply


Bolt snapped off in flywheel, how to remove it?

Hi everyone. I was replacing the pressure plate in a nissan navara with a td27 engine. One of the bolts that holds the pressure plate to the flywheel broke. So we drilled a hole and used a easyout. However the drill bit wandered so the hole touches the side of the thread. As a result the easyout wont work. The hole barley scrapes the side so the thread only looks slightly damaged, but ok. Have also tryed getting a punch on the edge but that wont work either. Any ideas on how to remove it?

Question by David97   |  last reply


how do I hook it up to a power source? what outlet holes do I hook it up to?

I have a obit and need to know which input lead goes where.

Question by linusmadrone   |  last reply


My roofer drove nails through the drip edge. I can see the holes. He pulled the nails, will this cause water damage? Answered

Neither the ice barrier or the felt was brought down over the edge of the plywood on the rake edge of the house before the drip edge was installed. Will these punctures enable the water to get to the plywood and swell it or cause leaks? This was a re-roofing with a complete tear-off. These holes were in the over hang part of the drip edge, not where the drip edge was intended to be nailed to fasten it to the roof. You can see the holes from the ground. Thanks, Bill

Question by billygale   |  last reply


Removing Broken M2 Tap from Anodised Aluminium 2014.

Hello Everyone,As you might have read, I have a Milled Aluminium 2014 Block which is Anodized with Black color, Today when I was tapping the holes of it, the M2 Tap broke and got stuck inside that hole, there is no portion of it outside the hole, so I can't unscrew it and pull it out.I saw a few videos on youtube on how to use alum water, or electrolysis(with 10% dil H2SO4) to dissolve or chemically remove the Tap bit from the hole, But my question is is it possible that using any of the above options could destroy the anodizing on the job work. and is there any other easy method I can use?Please Note that the tap bit is M2 and There are no tap extraction tools for a bit that small on the internet (or Locally Available in India) but if you find one Please post links for the same. Please Be Positive and make this community a happy place. Thanks.

Topic by _Boltz_   |  last reply



DIY Furniture: I have two rectangles of fiberglass with holes drilled in the corners. I want to make a coffee table.

I want to create a two layer coffee table. I've got the idea in my head, but haven't found the right materials. The fiberglass layers both have 4 holes (approximately 3/8" diameter - I can be more exact if necessary) drilled in each corners. The two layers would be separated by 4 metal tubes/pipes (~ 18"?) made of stainless steel or brushed nickel or the like. The top layer is held onto the 4 tubes by some sort of screw with a flat head that's bigger than the hole diameter. The bottom layer is held on by some sort of furniture "feet" that screw into the tube from the opposite side. Any ideas on what I can use for the top screw, the tube, and the foot? One such assembly for each corner, of course. The more exact the answer the better. Thank you, Chris

Question by caj9064   |  last reply


whats wrong with the thread I taped? Answered

I drilled a 3/8 size hole, taped it with a 10 x 0.5 mm plug tap. Than die taped a 10 mm size rod with a 10 x 0.5 die. I did it all on the drill press so it is at a 90 degree angle. The problem I am having is: The Rod is a little loose in the threaded hole, It won't slip out it is just loose. So why is this?

Question by silenus   |  last reply


Invisible shelf hangers?

I have a 6' x 1'x cubby hole in a wall that I'd like to add shelves to. I don't want to lose any of the room instead the hole with hangers of any kind, or have them be seen. Is there a way to hang the shelves so that the hangers won't be seen? I was thinking small pegs of some kind that the shelves would slide on top of. I assume that would need a router, though, which I don't have. 

Question by july1962   |  last reply


how to remove copper from motor?

I was wondering how to remove the copper from an air conditioning motor.  It is wound around the metal in several different places, and has a heavy papers inserted into each hole where the copper is looped/  The only way I have found is to take a screwdriver and pound each  hole with a hammer to push the copper out.  I was wondering if anyone had any suggestions.  Trying to scrap several motors of there copper.

Question by tweetygirl0612   |  last reply



How to compress air into a hollow solid without a valve?

Hi  Really need some help with this one, have searched everywhere but cant seem to figure it out. I know there is probably a very easy solution i'm missing so please help. Basically I want to compress CO2 at around 80 psi into a hollow metal. I have drilled a micro hole and created an opening (about 2mm radius) into the metal. My problem is after I compress the CO2 in there how do I remove the compressor nozzle and seal the hole without the CO2 escaping.  The metal is small and there is no place for a valve. Is there such a thing as a self sealing removable valve? Or could I use a valve  with two openings and pump liquid metal (that would than solidify) and seal the hole so I can remove the compressor?

Question by cnaidoo   |  last reply


Seeking ideas/thoughts for fountain pen traveling inkwell

I own a certain fountain pen that fills in a special way and is best filled by using the traveling inkwell of the maker of that fountain pen-- by using that traveling inkwell, one can fill the pen with a maximum amount of ink-- filling by dipping the nib end into a bottle of ink doesn't let the max amount of ink to enter the pen. But that traveling inkwell produced by the pen maker is VERY EXPENSIVE. A guy apparently in Australia made his own and I'd like to make one. I have ideas but seek from you more thinking and ideas on this homemade traveling inkwell. [You can see the Australian's clever, simple traveling inkwell here: https://imgur.com/a/fkzTs ] I thought I'd use a straight-sided plastic pill bottle for the vessel that holds the ink and is the main part of the traveling inkwell. The bottle I'd probably use is ~ 28mm ID. I don't know what to use and don't know where to find the rubbery "plug" into which the section of the fountain pen is pushed before inverting the plastic bottle to fill the pen. [The section of a fountain pen is the part that one holds when writing with the pen. It's also called the grip and is the area immediately behind the nib and feed.] All I have so far: - 8.5 cm tall x ~ 28 mm ID straight-sided plastic pill bottle which has near-the-top internal threads for the cap that can also be screwed onto external threads. [I'd use the internal threads for the cap.] Requirements which have come to mind-- tell me if these are sound or should be re-considered: - Whatever rubbery one-hole plug is used, it has to yield a bit to the fountain pen section (which is 11 mm OD) when the section is pushed into the one-hole plug-- the plug hole I suppose should be ~ 9.5 mm to 10 mm. The rubbery material around the hole has to grip the section so ink leakage doesn't happen during filling. - The one-hole plug should not move downward into the ink when the fountain pen section is pushed into the one-hole plug. Maybe the plug would have to be glued in place so it doesn't move? What glue or bonding substance if that's best? - The one-hole plug would be set/glued/bonded immediately below the near-the-top internal threads of the pill bottle. - I suppose the height of the one-hole plug would be ~ 1 cm to 2 cm. - I suppose a straight-side plug vs. a tapered one would be the ideal (but a straight-sided one would, I suppose, have to be glued/bonded in place so it doesn't slip or move). - Ink leakage shouldn't occur when the section is pushed into the one-hole plug and the bottle then inverted for filling. If leakage occurs, then ink runs down my hand and arm during filling. - What kind of not-hard-but-yielding-a-bit "plug" or maybe a stopper is best and where do I find just one? [Fountain pen inks are mainly water with dyes and maybe some additives in them.] Thanks for your attention to this posting!

Question by blm7   |  last reply


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