Molding

Anyone know about molding? How do I create the mold, i hear about this oozmoo or something but I cannot find such a thing in the UK. What kind of alternative can i use? how about vaseline around it, would that work? I would experiment but I don't have very much molding stuff.

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


Molding Silicon? Answered

So I need to make some waterproof gaskets and I wondered if I could use silicon calk in a mold and then bolt it down to produce an airtight seal.

Question by jj.inc 8 years ago  |  last reply 8 years ago


Mold Making?

So, after making this awesome isntructable (it's curing now!), I got ideas for other concrete projects. My favorite so far is making a concrete lamp. I want to make a mold of a lamp (light bulb in it) and then cast it in concrete. I'd then put a real lampshade on it and call it art. My problem is...I have no mold making experience. Do you guys have any tips, know where to get silicone, etc?Thanks!

Topic by Weissensteinburg 10 years ago  |  last reply 10 years ago


Making a mold.

I am trying to make a fascia panel for a car. In order to do that I need to make a cast of one of the voids in a panel, from a vehicle console, since it can't be measured easily. I want to make the cast so that I can then make an accurate template from which I can make the panel I need. I am looking for a material that is non-destructive to the plastic panel that contains the void. That will create a rigid solid replica of the void. I know nothing about making molds and casts. Thanks in advance.

Topic by ucs308 3 years ago


My plaster of paris molds never work

I tried making one part and also two part (push) molds with plaster of paris. I followed the directions and mixed two parts of plaster to one part of cool water and poured into a box (dunno the technical name for it) over my shape. But the plaster sticks to my shape no matter what. I can't get my shape (positive) out without breaking my mold b/c it won't release. I've tried mineral oil, silicone release spray, and vaseline. The vaseline has worked the best but I can't use it on every part. I've tried making a mold of a piece of wood and a concrete paver and neither of which worked.  I don't know what I'm doing wrong. It seems fairly straight forward. Lubricate the positive (what I want to make a mold of), put a slab of clay down, put the box around the positive and imbed into the clay to prevent leaking from the bottom, and then pour the plaster over the positive. 

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


Is it possible to make a custom silicon mold? Answered

Null

Question by Numb-Nuts 10 years ago  |  last reply 10 years ago


How can I make CHEAP homemade reuseable hard clay for mold making?

Looking to make fiber glass parts for my car. I want to stick something to the body and mold it. Then cover it with sr-an-rap and cover with fiber glass.

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


Leaking plaster mold? Answered

Hi All, I have a six-part plaster mold that leaks. It is so time consuming to make another one and I would like to fix it. During construction I  slightly over shaved some lines that during casting it leaks. I can use it but it creates more work. Now I want to make a master mold from that but want to fix it first. Does anyone know how to fix such problems on molds? I really appreciate the help. Thanks and hope to hear Belgin

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


Vacuum Forming Molds

hey guys ive been reading a lot lately about vacuum forming and homemade vacuum forming machines (kudos to everyone who has made one by the way, theyre awesome), because i want to start early on my halloween costume this year and after some research i found vacuum forming would be the best way to make my costume. so my question for you guys: what do i make the molds out of? unfortunately, everywhere ive looked, there hasnt been a real detailed description of how to make the molds for the parts, its usually more along the lines of "now put your molds on the platen and place the heated plastic. . ." without describing how aforementioned molds came into existence. thanks a ton in advance!

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


toilet seat mold

Does anyone know where i can purchase or how to make a toilet seat mold?

Topic by transguy 10 years ago


hot glue molding?

Is there any suggestions to the best way to mold hot glue like you do with clay and also adding food coloring to make it colorful?

Question by Caroline Kershaw 9 years ago  |  last reply 8 years ago


plastic bottle mold

 iv been growing stuff in plastic bottle and i notice that i get mold growing inside  has anyone else had this problem?

Topic by joeymmeezz 9 years ago  |  last reply 5 years ago


Ceramic Mold and Copper? Answered

I'm in ceramics at my school and i was planning to make a lantern and wanted to make a handle for it. I was thinking of making a mold out of white talc and getting it fired. Then putting copper in the mold and firing it again. Is this idealistic, or better yet would it work?

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


Molding is Not My Forte

I am currently working on a future Instructable that involves a lot of molding. Hence, I've discovered that my molding abilities are not up to par. It has been almost twenty-four hours since I poured the clear casting resin and it is still tacky on the top. Is this normal, or did something go horribly, horribly wrong?

Topic by Spl1nt3rC3ll 10 years ago  |  last reply 10 years ago


Molding with no Special Equipment

Hi, say I want to make a lot copies of a clay craft, and I don't have a special oven to mold brass stuff etc. How can I do it? So I prefer to mold in room temperature. I don't care a lot about the material, just if it isn't something weak, like gypsum. thanks.

Topic by merijnvw 9 years ago  |  last reply 9 years ago


Mold for Polyurethane Resin?

Hello, I purchased a Polyurethane Resin mix (Part A/Part B) to create a guitar. I’m wondering though what material I can use to create the Mold? I normally work with Wood, so this is all new and exciting, but oh so confusing. Can I create a mold out of wood and coat it with a silicone spray? Do I need to use some other non-porous material? Any insight would be excellent. Thanks, Rich

Topic by Coda24 9 years ago  |  last reply 9 years ago


How to make a mold

Hi there! :) In a couple of weeks I'll receive my first 3D printing! I'm so excited about it! One of my first projects I would print is a Flower Pot and... I'd also like to print a mold of this Flower Pot but I have a question: > First check the image of the Flower Pot dsign< How should be the design of the mold to allow me to make a new models with concrete (cement). I don't know how to solve the holes. Look, if I do with two external parts and one internal part... how can I do the holes and after take out the mold? I will think more about it but, if you have any idea... it's going to be great read it!! Thanks a lot!! =)

Topic by Kitus87 2 years ago  |  last reply 1 year ago


Wood molding casting

Need some ideas:I have an antique wooden chest of drawers. Most of the wooden molding around the top and bottom is long gone, BUT I do have two original sample pieces. They are a pretty intricate design and there is no way I'll find anything like them today. So I thought I'd make a mold and cast some to replace the missing wooden strips. I smeared up the thin wood strips with Vaseline and pressed them into plaster of parís. Well the mold turned out fine, but now I am struggling with what to use for a casting material. I tried plaster of parís, it was to fragile. I tried painters caulk, but it was too flexible and looked like heck. Thought about mixing sawdust and glue, but am pretty sure the texture will be wrong and grainy. It needs to be stain-able so I can make it look like it's wood and semi rigid so I can get it out of the mold. Any suggestions??

Question by john043 1 year ago  |  last reply 1 year ago


White mold on algae?

Recently (as in for a few weeks), my bowl of algae has developed white goop floating in it. It looks like flour, and sticks together like flour. I (intelligently, I believe) have not tasted it, but it or something else in the algae smells terrible (well, worse than how terrible algae already smells, lol). I'm worried because Im donating samples of this algae to my middle school to use for experimentation, but a few, um, white things got in the samples. I really want to know what this stuff is. If anyone wants pictures, I'll upload some,. but basically it looks like flour and floats on top of the algae.

Question by Rotten194 9 years ago  |  last reply 9 years ago


Help With Creating a Mold for Fiberglass Reproduction

Hi Guys and girls, I am new to fiberglassing. I am working on custom panels on my car. I like to work with clay being artistic and all, I can sculpt out new body panels,diffusers, Spoilers etc. I wanted to make my own panel but not sure how toget a mold created. I am working with OIL BASED clay which does not dry out over time so I would like to keep the clay undamaged from the resins or whatsoever. I want to use fiberglass as my casting. So My question is what can I use to work with my clay? How is the layer process started? What materials what I need? (Easy setup,which Brand Resins with Plenty work Time) This pic is a general idea I have to start Thanks !

Topic by solid25 5 years ago  |  last reply 5 years ago


i'm looking for a good way to make a mold for a resin cast.

I've tried other diy methods such as silicone caulk and Plaster to make molds.  while the plaster was the closest to working it was very difficult to remove the resin from the mold. 

Question by tvane1225 8 years ago  |  last reply 8 years ago


How can I make a 3d mold for soap making? Answered

I have some small figurines that would be cute as soap.  can anyone provide advice on how I can make a 3d mold?

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


how to make a rubber part that doesnt exist ?

Hi good peoples, i work at a place that makes and sells beef jerky and smokies. quite recenty one of the machines we use to cut them from links quit working properly and needs a new rubber pad for the clutch that stops the blade. the problem is the company we bought the machines and all parts for them it died with the owner so we cant replace them. my question is how hard would it be to mold rubber into a new brake pad for the clutch. i will put up pictures of the clutch and pad as soon as i can but i might as well start with the first problem how to cast and mold a rubber sturdy enough to do the job. all info on this would be greatly appreciated side note: now that i have the parts this is what they look like. two very soft rubber wheels with a concave treaded surface. the rubber tread is really worn down hence the need for replacement 

Question by snowfox222 6 years ago  |  last reply 6 years ago


Plaster and Epoxy

For my next Instructable (or next next, or more, I don't know yet), I will be using plaster or epoxy. Does anybody know where I can buy this at a local store? No internet stores, because my mom might take me tomorrow. Please post your thoughts/ facts ( :P ), thanks! -GorillazMiko

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


Building small objects out of concrete

Hi all, I was wondering if i could get any pointers on mixing concrete, I have gone through the concrete mixing instructables already and have not found anything suitable and hence I am asking her. I want to formulate an open recipe to make concrete objects like the ones in the following links, http://fancycrave.com/concrete-desk-accessories/ http://www.ledindon.com/en/objets-design/9029-stylo-plume-beton-arme.php http://www.designboom.com/design/concrete-rollerball-pen-by-22-design-studio-at-designboom-shop/ They are mostly small objects where the wall thicknesses are quite small (maybe a few mm). I think it will be interesting to see a DIY approach to making a concrete composition that is strong in small thicknesses, i think a lot of cool objects can be made from it . I have tried the normal concrete mix with cement and sand but i am not able to get it strong enough at those small thicknesses. Can anyone please some suggestions or advice on how to go about this ?  Thanks in advance, please see attached files for some images taken from around the web, i do not own any of them.

Topic by varun2021 5 years ago  |  last reply 2 years ago


Make two part molds with silicone mold putty

Make a small batch of silicone putty. push original into the putty, up to the mold line. let cure. put in vents for air to escape and a pour hole cover with more putty, but will the new putty adhere to the old? How do I keep the mold pieces seperate? also If I want to use pewter originals, how do I prevent tin contamination of the mold?

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


Need easy-to-find alternatives to food-grade silicone, to make molds. Would aquarium silicone do?? Answered

Hi. I would really like to make some food-grade molds (candy molds). I know that food-grade silicone is the way to go, but here in Norway, it is not that easy to come by, and when you do, it's very expensive. My question is whether there are viable alternatives, that lasts. (not a make one, and break it thingy..) I know that aquarium silicone is supposed to be non-poisonous, but will it do as a mold material? Or are there other alternatives I can make myself? or buy at a hardware store.. I know there are a lot of silicone products out there.. Surely some of them would be safe to use in food prep? Thanks for all answers. Best regards, Klaus, Norway.

Question by dexusno 10 years ago  |  last reply 9 years ago


silicone stuff

Long time listener. First time caller. Excited to be on your show guys. What I would like to do is make my own silicone bracelets / bands. Like Lance the liar Livestrong bands. But cooler. I've seen lots of posts on creating silicone molds. I think I can figure that part out. What I haven't found is a discussion on molding stretchy, rubbery silicone stuff. In my case - wrist bands.  Anyone here have an idea on what to use and how/where to purchase? I chatted with the kids at Make Your Own Molds and they were helpful on making my mold. But they couldn't recommend a site to buy the silicone for the bands. Help!!

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


what is the brand name of the red rubber stuff that you can buy in a can to cover the handles of your tools?

I've seen it before used for making molds for candles and other stuff. does it come in other colors besides red? and where can I find it on line?

Question by jokerrabit 10 years ago  |  last reply 9 years ago


is there a stretchable thin polyurethane or silicone I can use on thin nylon mesh fabric for theatrical wig?

I would like to make my theatrical wig more durable and would like to add a thin layer of stretchable silicone is this possible?

Question by 9 years ago


How-to: Silicon Molding for the Hydra?

I am a complete n00b. Much help is obliged. I had recently bought a Hydra and was considering building a wooden chassis, but had thought of making a silicon molding instead. Does anyone know how to make a molding for a motherboard chassis? Thanks!

Topic by 76john 11 years ago


best material for molding polystyrene

I'm melting Styrofoam w/ acetone and wanting to put the goop in a gear mold; however I'm not sure what material I should be using for the mold.  I was originally going to do it in ABS plastic, but wasn't sure if the polystyrene would glue itself to the mold as the acetone evaporates.  So I was thinking of aluminum or possibly stainless steel.  Your thoughts?

Topic by Spaceman Spiff 6 years ago  |  last reply 6 years ago


Using Resin& makeing Mold???

I want to try and use Resin (for the first time ever). What kind of resin should I buy if I'm going to be makeing small pieces that will imitate candy. And how the hell to a make a cheap mold?? :S

Topic by ZiggyRodrigues 12 years ago  |  last reply 11 years ago


Injection Molding Machine for Sale

This posting is for a small plastic injection molding machine for sale. It is lightweight and compact, but has large 2oz maximum shot size and 12tons clamping force. It can also be operated from 120V power supply. The molds for this machine are easy to make, since they can be made out of aluminum or reinforced epoxy. The price is $2875. Since it is compact, the machine is shipped by UPS to avoid expensive freight charges.

Topic by lfiore 6 years ago


Cavity mold for aircraft wing

I am using Alibre Pro. I want to make a cavity mold for a airplane wing. The leading edge is straight to a point then curves to the tip. The trailing edge is curved but is not the same as the leading edge. Does anyone have an idea how to do this.

Topic by jimp 12 years ago  |  last reply 11 years ago


Print a cast for pewter molding

I have a 3D model that I would like to have printed so I can use it as a cast for a pewter mold. It is a simple pin that I designed in 3DSMax.. Would the cast have to be metal, or is there some plastic/poly that would take the heat of molten pewter?  I don't want to have to pay a jeweler to do this, I already have the model in 3D, it seems like it should be easy to print a cast so I can make them myself..

Topic by 3DPiper 5 years ago  |  last reply 5 years ago


anyway to mold acrylic at home? Answered

From online research i see that you need pressure to keep air bubbles out. it would seem pretty easy to build a pressure vessel and heat it up. i was just looking at the acrylic toilet seats on ebay and some sell for over $200. anyone ever attempted this? anyone know where to get the materials?

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


how can i made pots (clay, hipertufa, etc.) molds?

I want to know how to do cheap, easy to do molds of wood or any easy to find material to cast pots in many forms (oval, round, square, rectangle, etc) to cast in concrete, hipertufa, clay or any common sturdy material like such. any sugestions welcome :)

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


How can I made multiple plaster molds from one clay model?

Hello everyone, I want to use a clay model and have it cast into a two part plaster of paris molds, so I can use it for papier mache. My problem is, I want to have several identical molds of the original copy. I can't figure out how I can do this though, as I would have to pick to clay/plastercine out of the original mold. Has anyone got any ideas to get around this? I was thinking maybe I could make the first plaster mold, make a rubber copy of the model inside and then from there, make the other molds. Could this work? Any help or advice would be brill, Thanks, Yours

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


Does anyone know where i can buy some...

Urethane rtv mold rubber? I would like to buy some in a local store....i cant find it anywhere....any ideas? i live in central pa and i would like to not resort to ordering online its just easier to pick it up and bring it home and use it hahah im impatient.....anywho some ideas would be helpful. A local hobby store is selling liquid plastic with catalyst for $49.00!!! i had no idea it was that expensive.. P.s if you are skilled in the ways of mold makings(i am not) and ideas in anyway can be helpful! Can i use liquid plastic with the urethane rtv to cast my stuff with? After i make the molds...i figured if i used a release agent it wouldnt be a problem. Thanx for your time.... Mikey

Topic by Mikey Cold Cuts 11 years ago  |  last reply 10 years ago


April 2015 Build Night with InstaMorph

#BUILDNIGHT 30 SPACES AVAILABLE Deadline to sign up: February 27. Accepted spaces will be notified by March 2. Read our FAQ to learn more about the Build Night program rules and how to make the most out of this event for your space. APRIL BUILD NIGHT We are partnering with InstaMorph, a lightweight thermoplastic, for our April 2015 build night. Sign up to participate in the build night and we will ship you a package that includes the following: (13) 6oz InstaMorph moldable plastic pouches HOW TO PARTICIPATE: Host a Build Night: pick a time in April to host a project build night using the InstaMorph 6oz moldable plastic. You can host multiple build nights during April to work on your projects. Post 3 Instructables: post 3 Instructables using the 6oz moldable plastic. Not posting these Instructables will affect your chances to participate in future build nights. Brownie Points (not required): after the build night post a forum topic on Instructables about your event. Include pictures, stories, etc... Here are two examples from past build nights: Noisebridge and Makers Local 256. We may even feature your photos on the homepage. REWARDS: If your submitted Instructable for this event gets featured by one of our editors we will send you an Instructables Prize Pack which includes: Instructables t-shirt, stickers, and patches. This forum post has guidelines for posting feature worthy projects. Be sure to let people at your event know so they can win a prize pack! Limit 3 per makerspace. RESOURCES: InstaMorph Instructions Instructables App (for documentation during the build night): iOS and Android REACH OUT TO US ON SOCIAL MEDIA #BUILDNIGHT #INSTRUCTABLES #INSTAMORPH Twitter: @Instructables, @InstaMorph Instagram: @Instructables https://www.facebook.com/InstaMorph https://www.facebook.com/instructables SIGN UP: Fill out this google form

Topic by Carleyy 4 years ago  |  last reply 4 years ago


Strengthen plaster of paris with Christmas tinsel?

Through the Answers section here, I learned of mixing borax, rebake into powder, and then mix alum to create a high polishable cast...and also read discussion of the use of horse hair or fiberglass fibers from insulation for reinforcing the plaster. Unfortunately, I haven't ever found enough details to test either of these methods. The other day at the store, my wife asked if tinsel would work. It never occurred to me, but it sounds like it would make sense. Have you ever tried to pull a strand of that stuff a part? Also, I'm sure right after Christmas, it would be dirt cheap and in vast supply. I have been using the plaster of paris for making mold for some Sugru/Oogoo projects. Anyone ever try this or have any suggestions? Or if anyone knowledge about the fiberglass thing that I can use as basis, that would be cool too. Also, I know there are better materials than plaster of paris, that are stronger and all, but I am trying to at least use what I have on hand first, and I know other people would find it useful too.

Question by vphreeze 8 years ago  |  last reply 2 years ago


What material should I use to make a mold for ABS injection molding? Answered

I want to design a mold to be used for ABS injection, but I'm not sure which material would produce the best results.  I want to design it and upload it to a manufacturer like shapeways or i.materialise.  They have a few different materials to choose from here for shapeways, and here for i.materialise.  What do you suggest would be the best material for a mold used to create professional looking ABS parts?

Question by Spaceman Spiff 4 years ago  |  last reply 4 years ago


I am trying to cast a large "sawdust" object?

I am attempting to create large molds/casts of trash bags. the goal is to create a life-size trash bag made of sawdust. I'm not even sure where to begin. i'm not sure if i could create a mold of a bag somehow or if i could fill a bag and go from there. i know wood glue won't dry in a large mass, so i'm not sure what materials i should use. 

Question by ChristieS35 1 year ago  |  last reply 1 year ago


What are the six steps of mold making?

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


Is it possible to cast latex in an alginate mold? Answered

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


Getting Sulpey clay out of a mold? Answered

Hey, I'm wanting to make some speaker housings out of Sculpey clay, and I was wondering, what's a good way to get sculpey out of a mold? I was thinking of molding it on the inside of a cup that I like the shape of, but I don't know how to get it out without it sticking and ripping... Should I spray the inside of the cup with non-stick spray or something? Thanks,  Zem.

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


what is a good lightweight molding material?

I'm building an iron man animatronic  helmet and i need to know what will be the best molding material to make the helmet mold and how i would make that i'm a tech guy so i don't know about this costume stuff thanks and rember to follow me for awsome tech and science stuff.

Question by jOker58 3 years ago  |  last reply 3 years ago


making molded toys from silicone?

Does anyone know how to 'melt'/liquify silicone. I want to to this to Foley catheters(yellow urine tubes used in hospitals) then pour the silicone into molds of M.U.S.C.L.E men toys. Any advice

Question by Ivar Naraknas 6 years ago  |  last reply 6 years ago


Is there a silicone gel for molds that is food safe?

Most of the silicone molding Instructables that I have seen look very easy to do especially,  https://www.instructables.com/id/Two-Part-Silicone-Casting/   and  https://www.instructables.com/id/Make-a-silicone-mold-from-common-household-materia/   But i want to know if the materials used in these type projects are food safe for things like jello or chocolate casts. If anyone knows of a viable and cheap substitue if not would be of much help Thanks!

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