melting zinc into iron

Hey guys, can you suggest me a way to melt zinc into iron? for making alloy of them... thanks

Topic by bob 1492 4 years ago  |  last reply 4 years ago


Carbo zinc rods?

Hi, i saw an instructable on arc lights but i cant find out wat batterys will have a carbon zinc rod. can someone please help. also am i suppose to use alkaline batterys?

Topic by DELETED_DELETED_kruser495 11 years ago  |  last reply 11 years ago


Zinc+hydrochoric acid=?

I put a zinc coated nail into hydrochoric acid and the nail started to bubble.The bubbles came to the surface and when they popped a small cloud of some gas appeared and I was wondering what this gas was.I think to was hydrogen.

Topic by T.A.G. 11 years ago  |  last reply 11 years ago


what are the role of the scientists when mining zinc.

Im doing a assignment and i cant find anywhere what the roles of the scientists are. Can you help me?

Topic by Claws47 5 years ago  |  last reply 5 years ago


RE CHROMING ZINC ALUMINIUM

I am looking for info on how to restore zinc aluminum car parts . like the automobile horns they tend to oxidize AND do not stand up to the Chemical's when re chroming. I be-leave that there is a process that will give them, a coating that can be used that will take the chroming posses   Regards John .

Question by Johnbowman 2 years ago  |  last reply 2 years ago


Can I buy zinc at a drug store?

I'm doing an experiment where i need a powder form of zinc and vitamins or whatever would do i just need zinc powder and do they sell it at drugstores?

Question by mysterious ninja of fire 9 years ago  |  last reply 7 years ago


where can i find pure copper and zinc strips?

I need several strips of copper and zinc for a science project but its frustratingly hard to find zinc anywhere in the Seattle area. I have already tried the local electronics store and plumbing store. Can you guys suggest anything not outrageously expensive and within an hour driving distance?

Topic by Plastic Fir 11 years ago  |  last reply 1 year ago


what year pennys are made of zinc?

I need a way of getting zinc powder, i heard there is penny's that are made of zinc? is there any specific year? how would be the best way of getting it to s powder? yes, this is for negative x. thanks

Topic by DELETED_DELETED_kruser495 11 years ago  |  last reply 10 years ago


Will heating a zinc chloride solution made from reacting Zinc with HCl produce HCl fumes? Answered

I am going to make a solution of zinc chloride by mixing hydrochloric acid with an excess of zinc. In the experiment I want to do, I have to heat the zinc chloride. Will there be any HCl fumes?

Question by jarheadwithm16 7 years ago  |  last reply 1 year ago


Electroplating chemical mishap

I figured it would be cool to quickly electroplate some stuff. Since I was lazy, I only used what I had on hand [block of zinc, vinegar, muriatic (hydrochloric) acid)]. The zinc ingot was taking too long to dissolve in the vinegar, so I added about 30 mL of hydrochloric acid. A couple hours later, I was electroplating fine. After two weeks of normal zinc chloride electroplating, the acid suddenly took on a nasty dull brown/yellow amber shade and a ton of white bubbles formed around the zinc (still in the acid). Can anyone tell me what happened?

Question by Brekenridge 7 years ago  |  last reply 7 years ago


Is galvanized steel dangerous to be making rings with?

I am making chainmail in my room and my dad thinks we'll get zinc dust in our carpet and possibly get sick from me bending the wire.

Question by pindalanderz 10 years ago  |  last reply 6 years ago


where can i get zinc poweder? besides UN?

I am looking to get zinc powder without ordering off united nuclear? anywhere local/get it out of another product

Question by bullet71792 9 years ago  |  last reply 7 years ago


what problems would arise from an incomplete reaction of excess zinc and sulfuric acid?

Chemical reaction of zinc and sulfuric acid

Question by 9 years ago  |  last reply 9 years ago



What are some good metal(s) to do electrolysis on?

Question by PKTraceur 10 years ago  |  last reply 10 years ago


Can i use match sulfur in making gunpowder or zinc based flash powder?

I want to make one of these but i dont know if i can use matches,i tried making armstrong mix from match heads and phosphorus from the strike tab but the phosphorus is glued and paper comes out with it.Can i use match heads and zinc powder (which i have) instead of phosphorus?

Question by NikolaD16 8 months ago


Indigo dyeing! I am looking for some advice about a zinc vat.

 I put together a vat following Yoshiko Wada's zinc-vat recipe from the Shibori book.  but instead of reducing all i have is grey sludge. and advice for me??

Question by estuvam 8 years ago  |  last reply 8 years ago


chemistry assistance please!?

Well, you may know you can synthesize CuSO4 with sodium hydrogen sulfate and copper metal if you heat it in a test tube over a burner, but, i have one question, is it possible to do the same with zinc in the place of copper in an effort to produce zinc sulfate? i want this simply as i want some glow powder,but, is this method possible? If not, tell me a simple way. (if there is one...)

Question by kerbal1234 7 years ago  |  last reply 7 years ago


What kind of electrodes can I use in a lemon battery?

Dear Instructables community, recently I stumbled upon this instructable: https://www.instructables.com/id/The_micro_Lemon_Battery_reusable_1_hour_of_led_l/ and I immediatly recognised it as a nice way to spend an afternoon. Now here comes the question: Are there any alternatives for zinc? For instance this instructable: https://www.instructables.com/id/Salt-powered-LED-flower/ uses copper and aluminum foil, instead of copper and zinc. If the previous question is answered with no, then could someone please tell me where I can find zinc? I mean something like: break open this device, there will be some zink in there. If you feel like it then feel free to explain the principles behind electrochemistry to me. Always happy to learn something new. Thanks in advance, Dennis van Rooijen

Question by dunnos 9 years ago  |  last reply 4 years ago


i found a metal rod inside a duracel battery, whats it made of?

After looking through (literally) some batteries that i had held onto in the hope that theyd contain carbon rods for elecrolysis. i discoverd now what the signs are that a battery contains a carbon rod, and how to tell if its a wet cell. now, i opened up a d size duracel wet cell, that contained a metal rod that looks identical to a blunt nail, and i was wondering, what is this made of? because , i kno theres a reason iron rodsa arent used inside these batterries, being because theyd rust, yet this has no rust at all, so im wondering wjhat is it? also, ide thought ide emntion it was attached to the negative terminal. also, is the silvery metalic flaky dust stuff inside the paper roll inside said battery pure zinc? or is it zinc oxide, because ide very much like to try to use it to make zinc sulfide for glow in the dark plastic, so would it work?

Question by oldmanbeefjerky 8 years ago  |  last reply 8 years ago


can i use carbon rod and copper in lemon battery?

Can i use carbon rod from dry battery and copper wire as electrode in lemon battery .if not wher can i get zinc metal other than dry battery.......

Question by rachit59 9 years ago  |  last reply 9 years ago


Would this battery work?

I want to make a compact battery, I need it to generate as many volts possible. The battery materials are the following: Anode: Zinc Cathode: Steel Electrolyte: Sulfuric Acid Is that the optimal anode and cathode I can use to get most volts out of it?

Question by Nitr0 3 years ago  |  last reply 3 years ago


All right, let's clear this up: What the hell is inside of a battery?

Really frustrating: I accidentally closed the tab I had been working on for about 15 minutes, so I'll probably be missing a couple of questions I had been meaning to ask.So anyway: When I peel off the outermost metal covering of a zinc-carbon battery, I'm just taking away a protective steel covering, right? When I get rid of that, am I looking at the actual zinc "case?"What is the sticky, black material that surrounds the graphite rod? Is that manganese dioxide? Is manganese dioxide the same thing manganese oxide?Further outwards from the center of the battery, there is another black substance. Is this ammonium chloride?I haven't actually chopped open a carbon-zinc battery all the way yet. Is there a good technique for removing all of the contents?How can I tell the difference between the two black substances? Is the moist, black paste ammonium chloride? If this is so, then why, when I pull the graphite rod out of the battery, is it sometimes coated with a sticky, black substance? Do the substances mix with each other or are both substances sticky and black? Is one a powder?Is it okay to drill through one end of the battery? If I drill into the negative terminal of the battery, what will fall out?Basically, what are the physical properties of all the materials? How can I tell the difference between them?Now: On to alkaline batteries...Both types (carbon-zinc and alkaline) appear to use manganese dioxide. Is this so? On Wikipedia's article on alkaline batteries, manganese dioxide is described as Zn/MnO2, with the two as a sub-script. Does the slash mark mean that zinc and manganese dioxide are interchangeable?What will I find if I open up an alkaline battery? Is it safe to do so? What is a good, safe way to open one up?Are there any particular "fun" applications for these chemicals? Think explodiness ; )I've heard that manganese dioxide can be used to produce oxygen. How do I do this?There might be some yellow tag-box notes on these, pictures. For the context, visit my Instructable on how to make your own carbon arc light. I'm not trying to advertise, I'm just anticipating someone asking about them.

Topic by carbon 12 years ago  |  last reply 1 year ago


DIY Rechargeable Cell Chemistry?

Hi i was wondering if there was any electrically reversible battery chemistries that can be made from around the house materials like copper wire, iron nails, galvanized nails, graphite rods, aluminum foil, and other items like those.

Question by LiquidLightning 8 years ago  |  last reply 6 years ago


Thin Film Battery?

Hi, I was wondering what kind of battery chemistry I could use with thin film battteries. Something like a sheet of Material: A then a shet of paper Towel soaked in electrolyte, then Material: B. What should I use for Materials A and B? Aluminum foil/carbon paper, Aluminum foil, Copper Foil, Zinc Foil, Carbon Paper?

Question by LiquidLightning 8 years ago  |  last reply 8 years ago


Sheet metal input

Fixin’ to make to magnetic board and need some input on what to purchase. I’m seeing several types of sheet metal. There’s plain sheet metal, zinc plated, cold rolled, weldable, galvanized, etc. Is there a particular type I should purchase? Hoping to avoid anything that will tarnish or leave marks on any paper out on the board. Thank you for your input!

Topic by jpmarth 8 months ago  |  last reply 7 months ago


Does heating a sodium hydroxide solution create fumes?

I want to do the chemistry trick where you turn pennies into a silver and gold color. I am looking to do this by heating a sodium hydroxide solution with zinc metal and then adding pennies. I just need to know if I can do this in my garage on my hotplate or if I should do it outside because of fumes. Thanks :)

Question by jarheadwithm16 7 years ago  |  last reply 7 years ago


GID Vials, Tritium, TRASERS, Powders and Chemicals GLOW IN THE DARK!

TRITIUM! So I get a lot of questions from my post and instructables. Tritium Vials are Radioactive Hydrogen H3, also known as hydrogen-3 is a radioactive isotope of hydrogen. It is contained in small glass vials coated in colored phosphor then encased in glass or sealed plastics. These are commonly seen in Gun Sights, Watches (TRASERS) and some Emergency Exit Signs. http://en.wikipedia.org/wiki/Tritium_illumination Small amounts are legal and for approved uses. Read the NRC guides Typically the Trit vials are small, expensive and dim. The latest GID (Glow in the Dark) Chemsticks, LED's and GID Powders or paints seems much more effective and usable. * Cyalume, as used in a lightsticks, emits light by chemiluminescence of a fluorescent dye (also called fluorescor) activated by cyalume reacting with hydrogen peroxide in the presence of a catalyst, such as sodium salicylate. It is the most efficient chemiluminescent reaction known. up to 15% quantum efficiency. http://en.wikipedia.org/wiki/Chemiluminescence New LED low power requirements and high Lumen or light output have provided many solutions that are low cost, high power and longer lasting. GID Paint or Powders are "charged" with light or daylight sources as with your traditional kids toys or stickers. New products are brighter, glow longer and are now waterproof, have many colors and applications. http://www.4physics.com/catalog/GIDinfo.php Also this is occasionally confused with the chemical illumination. However these paints powders and materials use common phosphorescent materials include zinc sulfide and strontium aluminate. Use of zinc sulfide for safety related products dates back to the 1930s. However, the development of strontium oxide aluminate, with a luminance approximately 10 times greater than zinc sulfide, has relegated most zinc sulfide based products to the novelty category. Strontium oxide aluminate based pigments are now used in exit signs, pathway marking, and other safety related signage. http://en.wikipedia.org/wiki/Phosphorescence Hope this helps! 01/2011 - Update Source for Materials http://www.darkniteglow.com/glow-shop/ ERCK www.Candlepowerforums.com Additional Tritium Resources * U.S. NRC: http://www.nrc.gov/reactors/operating/ops-experience/grndwtr-contam-tritium.html * U.S. EPA: http://www.epa.gov/radiation/radionuclides/tritium.htm * U.S. DOE (Argonne National Lab): http://www.ead.anl.gov/pub/doc/tritium.pdf * California EPA: http://www.oehha.ca.gov/water/phg/allphgs.html * University of Idaho: http://www.physics.isu.edu/radinf/tritium.htm

Topic by erckgillis 8 years ago  |  last reply 8 years ago


How can i focus a magnetron beam from a microwave , to make a small metal forge?

hello I have been looking for a number of ways to cast my zinc with, along with just melting other metals namely aluminium. I have come across the microwave method, however i feel that just using a microwave is a wasteful and hazardous means of meting metals like zinc , since the metal vapors are very flammable, even explosive, even as a dust I thought, since the microwave is basically just a box which the magnetron beams microwaves into, why not build a forge, which consist of a crucible laying in the center-point of a magnetron beam. all this would sit outside, done at a distance to avoid exposure to rouge microwaves. I dont wish to introduce anything new into the equation, just use prexisting things form the microwave, and probably some aluminium sheet. Anyone know if it will work better than just using a microwave? and how i should focus the beam? i want to keep the whole thing as compact as possible, probably which the crucible being no further than 10-20cm from the magnetron. Thanks

Question by oldmanbeefjerky 7 years ago  |  last reply 4 years ago


How do I collect the oxygen from the reaction of hydrogen peroxide and manganese dioxide?

I believe that the reaction between the black, powdery manganese dioxide found within carbon-zinc batteries, and household-variety hydrogen peroxide produces oxygen. However, it is my understanding that oxygen is heavier than air, and will therefore that collecting the gas will not be as simple a matter as seen in steven07's Instructable on producing and collecting hydrogen.Unless I'm completely wrong, and a reaction that produces oxygen will inflate the balloon. :POr, does anyone else have another way of collecting the gas?

Topic by carbon 12 years ago  |  last reply 5 years ago


Sulfur and Tin did not mix ... (trying to make DIY phosphor)

Hi ...Here is an other "failed experiment" ...I tried to mix Sulfur and Tin with the hope to make a ZnS phosphor ... (Yes, I know ... I confused Sn and Zn)So, indeed, when I poured some Sulfur powder over my melting Tin, the Sulfur melted, boiled and vaporized ...Ok. Now my question : If I pour some Sulfur powder over melting Zinc, will Sulfur vaporize, or will I get some ZnS ?(actual question : is there a simple non industrial mean to make ZnS phosphor ?)=o]

Topic by chooseausername 11 years ago  |  last reply 3 years ago


Building a Foundry?

So I've been experimenting with building a mini foundry made out of steel cans. I've experimented with several different fuels, fuel injection systems, oxygen injection systems, crucibles, and different metals. However, the only metal I've ever been able to melt with it is zinc. (if you don't know, zinc doesn't take alot to melt; only about 700F) My target metals are aluminum and copper, but despite over a year of experimenting, I've never been able to melt either. I would like to know what I'm doing wrong, or what I could do better. Here's the rundown of the furnace's construction: The fuel I'm currently using is propane. The foundry isn't big, (you could fit it in a backpack) so I just use propane canisters for torches with a normal output line on the end. The line runs to a small piece of glass laboratory tubing with a tiny nozzle on the end which is about 1 mm in diameter. The propane shoots out as a stream and mixes with air utilizing the venturi effect. The propane mix then shoots into a large metal pipe about 2 cm in diameter. It then bends up at a 90 degree angle and enters the furnace, which is in essence, a steel can with a hole in the bottom. inside this is a steel can cut in half with a thick wire through it to suspend it above the burner.  So what could be improved? When I run it at full blast, the whole furnace glows orange, but no metal melting happens...

Question by tylervitale 7 years ago  |  last reply 6 years ago


Where can you acquire NON-Galvanized steel pipe?

Mt friends have found plans to build a forge, and we have all the parts to build it EXCEPT for non-galvanized steel pipe. Because the pipe will be heated up, we cannot use galvanized steel pipe as the zinc used in the galvanization process produces deadly fumes when heated up. We have checked stores such as Home Depot, and Lowes, but neither one has what we need. Does anyone know where (and if), we can get non-galvanized steel pipe? Any help is appreciated, thanks.

Question by Philisawesome 6 years ago  |  last reply 6 years ago


Nordic Gold Answered

I'm planning on making a ring out of a coin. I'll use Euro coins. 1, 2 e 5 Eurocent coins are made of copper covered steel and are too small, so I think they won't be a good choice. 1 and 2 Euro coins are the right size, but it seems that they are made of alloys containing nickel, that may cause allergy. So I think I'll use a 50 Eurocent coin, that is made of Nordic Gold, an alloy (89% copper, 5% aluminium, 5% zinc, and 1% tin). Has anyone ever made a ring out of Nordic Gold? Did it cause allergy or stain your finger?   Did it tarnish? Is it malleable? Thanks

Question by Fabio M 6 years ago  |  last reply 3 years ago


True Stainless handle

The stainless cabinet handles are manufactured from stainless steel material as they carries better finish as well as durable. Stainless steel is also the favourite material house ware and kitchen ware too. It is also the main choice for cabinet handle specifically for bathrooms and kitchens mainly due to their easily maintenance. Besides the benefits above, the color and finish of the stainless steel handles looks rather good against cabinet background. Wooden, fiber or plastic material. Modern contemporary kitchen design fit very well with stainless steel handles, and there are good selections of styles to select from. Normally it is not economic and easy to change out the entire kitchen cabinet and it is rather costly, so changing the knobs and pulls may be a good way to refresh the cabinet. Besides the decorative function, the cabinet knobs and handles are also useful in a number of ways. As cabinet door go through lots of wear and tear, so they are easily damaged. Their paint and polish can easily drop off over time. Hence the stainless steel knobs and handles are the better choice for kitchen cabinet due to their durability. but in the market nowadays, many distributors will sell SS201 Material handles rather than SS304 handles due to price problems, and SS201 will rust very easy, so if considered the price, there is another alternative choice, that´s Zinc alloy handles or Alu handles or knobs, especially Zinc alloy handles can be processed in many different finishing. Whatever types of knobs or handles you choose, they ought to fit in the theme of the kitchen. Hence do check out the different styles of the stainless steel handles. Do check out www.fashion-alen.com for more related information

Topic by Imex international 7 years ago


Inexpensive glow in the dark writing

Desired effect:Paint a Wall or furniture write on it or draw then it fades 1 less than a minute then you can draw againMaterials:-1 UV LED (low power any chinese anti fake bill keychain will do)-Any surface -Common glow in the dark paint or powder Low grade Zinc sulfide glow in the dark paint (or strontium oxide aluminate glow in the dark paint ) We have to find a way to lower the performance of the compounds so that they glow for 10-40 seconds maximum instead of hours.WHAT IS NEEDED: A CHEMICAL DETERRENT TO LOWER THE PERFORMANCE OF THE PAINT: HELP IS NEEDED I DO NOT KNOW WHAT COMPOUND TO USE. (IT MUST DECREASE THE PERFORMANCE BUT NOT THE BRIGHTNESS in dim light)Help complete this instructable, (pretty please)

Topic by dejabox 11 years ago  |  last reply 11 years ago


While doing electrolysis on some pennies, (Pence?) I noticed a copper coating on my + copper lead?

Is there something special about this? Also, Is this a form of electroplating? I doused some pennies in vinegar for about a week+ and tried this. On a thinner, magnet wire lead, (copper +) it had what I beleive is a dark green copper salt, that burned blue. Can anyone Identify this? Also, I changed the diameter of the lead, to about 1/16 - 1/8 (Copper lead, +) and It seemed like that lead was powder coated with copper. Is there a reason it would not be a copper salt? The other was coated with what I think is Zinc.

Question by PKTraceur 10 years ago  |  last reply 10 years ago


Correctly identify Aluminum, smelting brass

 How can I correctly identify aluminum?  Aside from the weight, how do I find out if it is pure or some alloy that will make make even the vultures drop dead when smelted. Owing to a project I'm working on where I wish to cast letters in aluminum for a wind harp, I have been on a search here on the farm. Have found literally 200kg of scrap brass and and about 35g of aluminum! The letters have to be out of aluminum for rust reasons. 2nd Question Does zinc alloy aluminum rust in the same fashion? 3rd Question Brass. I haven't researched it yet, but could anyone give me a clue as to smelting the stuff? Thanks

Topic by Karroo Oakey 9 years ago  |  last reply 7 years ago


Inexpensive glow in the dark writing: WRITE ANYWHERE

Inexpensive glow in the dark writing Desired effect:Paint a Wall or furniture write on it or draw then it fades 1 less than a minute then you can draw again Materials: -1 UV LED (low power any chinese anti fake bill keychain will do) -Any surface -Common glow in the dark paint or powder Low grade Zinc sulfide glow in the dark paint (or strontium oxide aluminate glow in the dark paint ) We have to find a way to lower the performance of the compounds so that they glow for 10-40 seconds maximum instead of hours. WHAT IS NEEDED: A CHEMICAL DETERRENT TO LOWER THE PERFORMANCE OF THE PAINT: HELP IS NEEDED I DO NOT KNOW WHAT COMPOUND TO USE. (IT MUST DECREASE THE PERFORMANCE BUT NOT THE BRIGHTNESS in dim light) Help complete this instructable, (pretty please)

Topic by dejabox 11 years ago  |  last reply 11 years ago


Write on anything: INexpensive glow in the dark writing

Inexpensive glow in the dark writing Desired effect:Paint a Wall or furniture write on it or draw then it fades 1 less than a minute then you can draw again Materials: -1 UV LED (low power any chinese anti fake bill keychain will do) -Any surface -Common glow in the dark paint or powder Low grade Zinc sulfide glow in the dark paint (or strontium oxide aluminate glow in the dark paint ) We have to find a way to lower the performance of the compounds so that they glow for 10-40 seconds maximum instead of hours. WHAT IS NEEDED: A CHEMICAL DETERRENT TO LOWER THE PERFORMANCE OF THE PAINT: HELP IS NEEDED I DO NOT KNOW WHAT COMPOUND TO USE. (IT MUST DECREASE THE PERFORMANCE BUT NOT THE BRIGHTNESS in dim light) Help complete this instructable, (pretty please)

Topic by dejabox 11 years ago


How to fasten galvanized pipes?

Hi there, I have a lot of galvanized conduit of various diameters that I found in a dumpster. I would very much like to know how to fasten one pipe to another so I can make stuff with it.Welding: I've read on instructables and elsewhere that you will become quite ill if you weld galvanized materials due to the evolved zinc fumes. Are respirators an option?Lap Joints: I thought of trying to make a lap joint by cutting out matching "half rings" from the pipes, overlaying them, and then bolting them through. I'm stuck as to how to make that cut though. I could do it in wood, it seems like metal would be trickier. Any thoughts?I'm being forced to move the pipe in a week or so; any off-the-cuff ideas would be fantastic, thanks!

Topic by post.haste 10 years ago  |  last reply 10 years ago


Green isn't all that green after all

While the color green has been the hue of choice for environmentalists and companies wishing to show that they care about nature, making a product green is actually toxic. Due to the difficulty of making a green dye and all the chemicals that are used, it contaminates anything it touches. So when a product is simply putting some green to make it look a little more nature-friendly, it's actually making things worse. Yay! From the NY Times: Take Pigment Green 7, the commonest shade of green used in plastics and paper. It is an organic pigment but contains chlorine, some forms of which can cause cancer and birth defects. Another popular shade, Pigment Green 36, includes potentially hazardous bromide atoms as well as chlorine; while inorganic Pigment Green 50 is a noxious cocktail of cobalt, titanium, nickel and zinc oxide. The Toxic Side of Being, Literally, Green

Topic by fungus amungus 9 years ago  |  last reply 9 years ago


Help with a cast metal coin instructable!

Need help finding a particular instructable, friends.  I would almost bet body parts that I saw an instructable here that had the following process to it for making a custom fantasy coin or medallion: Use the underside  bottom of a paper coffee cup-mix up a portion of Bondo and fill the bottom recess with it.  When Bondo hardens, pop out the round disc, paste a paper disc onto it then draw out your coin or medallion design.  Carve out your design with a dremel or similar, make a silicone putty mold, then when mold is dry, pour pewter or zinc to make a custom coin. Darken and polish. I know I've seen it, I'm wanting to stick it in my favorites list so I don't lose it again, and I especially want to thank the author for coming up with such a simple process for a custom medallion. Can anyone help me?

Topic by pheenix42 2 years ago  |  last reply 2 years ago


the use of threaded rods for cnc miller and cnc 3d printers

I got some threaded rods today. They look straight. 16 threads per inch.  The tag on one of the shorter ones says 3/8" - 16x36", course threads, zinc plated 1700lb. I was planning to use these for the x,y,z control for a 3d miller/printer. I realize it may be slow. Someone mentioned that the McWire repstrap uses a 4 1/20 (the only part I understand is 20 threads per inch) was really slow, but someone made it work with 2 1/16. I did not really have plans to attempt position verification because I think the resistance vs torque should be minimal for a threaded rod setup. I figure I could get away with just sending it specific pulses for a specific amount of time. Could I have some feedback on this?

Topic by nstenzel 6 years ago  |  last reply 6 years ago


Avoiding corrosion when bolting galvanized steel drawer slides to aluminum for camper van bed

Hey guys,Going to build this bed:or something very similar. She says she has 6 sliders at 100lbs each, but I imagine she has 6 slides at 100lbs per pair. Either way, I've already purchased 3 pairs of 500lb drawer slides. The problem is, they're galvanized steel. How do I attach them to aluminum L beams? I can use some thick mil rubber tape between the two materials, but what about the fasteners? Some sort of plastic washer and polyurethane sealant around the head and threads touching the galvanized rail side? What should I use to isolate one from the other?FWIW, I'll probably use 6061 for the frame, which I believe has an anodic index of .9-.95, and the zinc rails are, I believe, 1.25. They're within or close to the .25 threshold so am I worrying about nothing?Cheers

Topic by withalligators 1 year ago  |  last reply 1 year ago


mission of sputnik 1

Russian technology satellite. One launch, 1957.10.04. Tikhonravov's 1.4 metric ton ISZ satellite was to have been launched by the new R-7 ICBM as the Soviet Union's first satellite, during the International Geophysical Year.    But it was not ready in time, so Korolev hurriedly developed Sputnik 1 as a replacement. It became the first artificial satellite of the earth. Sputnik 1 had 1 watt of power, producing an 0.4 second duration signal on the 7 and 15 m bands. Four antennae were deployed at 35 degree angles. Power was provided by three silver-zinc batteries. Thermo-regulation was by a ventilator. The 580 mm sphere had a mass of 83 kg and was made of highly polished Aluminum AMG6T alloy 2 mm thick. It was built without drawings due to the quick time schedule. Korolev was everywhere, supervising all aspects of its construction. It functioned for 21 days.      AKA: PS-1. Gross mass: 84 kg (185 lb). First date: 1957-10-04. Number: 1 .     the word sputnik is russian word for traveller

Topic by Waren-Neutron 8 years ago  |  last reply 8 years ago


Chemicals people would want to make?

Basically I want to know what lab chemicals you want to make, if you know how to make any useful chemicals. please post, I am not responsible for and injury's, fatality's, or "bad things" of any sort that come from this thread, all things posted here are to assumed for informational purposes only.

Topic by mr.space 9 years ago  |  last reply 8 years ago


Advice on Brass wire soldering

Hi all :) I'm totally new to soldering and want to make a project involving soldering two pieces of 12 gauge brass wire using 20 gauge brass solder.My issue is the solder won't flow and the brass just darkens after a while of holding the torch to the metal.Here's the equipment I'm currently using:Solder: https://www.etsy.com/listing/291425439/brass-wire-... Silver - 38% Copper - 32% Zinc - 28% Tin - 2% Melt Point - 1200º F (650º C) Flow Point - 1330º F (721º C) Wire: https://www.etsy.com/listing/551472422/1-lb-round-...Solid Round Yellow Brass Wire. Metal : # 260 Yellow Brass. Melting point according to seller: 1650 to 1720º FTorch: Micro torch Roburn MT 770PFuel: Bernzomatic ButaneFlux: Oatey No.95Application: I clean and sand (using sandpaper and/or a file) the brass wire, and the solder. Apply flux liberally Apply heat using just in front of the inner cone (flame is totally blue with a slight hiss), starting on the sides of the wire and working my way to the joint.The metal glows but doesn't stay very much.Do I need a propane torch? What am I doing wrong?Thanks so much!

Question by Tooltip 16 days ago  |  last reply 9 days ago


Iron Man

Hello. No one seems to have done anything in this group at all since inception. That honestly sucks, as I was hoping that someone would have put in some time and at least come out with some sketches, or put their thoughts down on paper. Well I am not one to complain without doing something about the problem. First up is the issue of powered movement. That is the core of Iron Man's super strength. You have 3 real options here. Hydraulic, Stepper Motor, or Servo Motor. I have filtered out hydraulic simply because it is not as easy to work with as the other electrical motors. I found a comparison chart, and a link to it is posted below. http://www.legacycncwoodworking.com/stepper-vs-servo-motors/ Based on the information it contained, I would say that a stepper motor is the most efficient way to go. It takes more power to run, and generates more heat, but neither of those problems is difficult to deal with. Heat syncs, and a propane/natural gas generator will solve both of those problems readily. The next problem is the exoskeleton, the armored body of Iron Man. I have looked into materials, and the difficulty in casting them, or machining them. ZA, or Zinc Aluminum alloys seem to be the way to go. They are relatively easy to make, requiring only about 900F to melt them, they cast extremely well, and they make extremely fine detailed castings. When they set up, they have hardness equivalent to that of Cast Iron. They also lend themselves readily to sand casting, mold casting, and to graphite casting. Alright, I have put my 2 cents in. Lets hear from the rest of you.

Topic by xarlock667 8 years ago  |  last reply 7 years ago


Plating Silver/gold (or any other hypoallergenic metals) on a Brass ring. (Without access to specialized chemicals)

Greetings fellow makers and crafters. First off I want to thank all who take the time reading this question. So, lets get started. A while ago I decided to test my crafting skills and made a beautiful brass ring out of some very old 20mm brass ammo casing. A nice repurpose in my opinion. The brass however oxidizes very quickly and stains my finger green. And it seems like the skin underneath is developing an allergic reaction. Either to the oxide stains, the zinc, or maybe some nickel contamination in the metal? It appears dry and reddish sometimes. Because I put a lot of effort into making the ring and don't want to discard it I finally decided to electroplate it. Plating it with copper would be quite easy as it seems that copper nitrate can be made with citric acid. It would however still oxidize and leave stains. My second thought was Nickel, but I discarded the idea because I seem to be allergic to other Nickel plated Jewelry. Now comes the hard part. I live in Bosnia and Herzegovina. A country where I can hardly come across any chemical supplies. Even simple things like activated charcoal or hydrogen peroxide are nowhere to find. I could silver plate the ring if I had access to nitric acid. But as you see that would require me to buy it from some online store which I really try to avoid. I could start making my own nitric acid with the use of the Birkeland Eyde process. But I'd rather have something more safe, health friendly and without the chance of getting roasted by a 10-20kV transformer. Anyway, back to the topic. I am currently out of ideas on how to approach this project. So I am asking you guys if you know of any of the shelf products which have the required chemical ingredients that I could utilize to make this project a success? Thanks again. ------ And Happy New Year! :)

Question by icemaciop 3 years ago  |  last reply 3 years ago