My name is Eric Strebel welcome to
another video of mine about industrial design in this video we’re gonna take a
look at casting urethane joby hotshoe camera mount that’s from my gorilla pod
so I can use it on other things like my tripod and my rovers and different video
adapters in my studio I’m using innovative polymers ie 3076 urethane
two-part resin here it is a fantastic all-around very durable resin I use it
for all my general purpose casting there’s really no need to go out and get
any other kind of resin this stuff is fantastic it is strong durable you can
put it in a vacuum tank suck all the bubbles out of it you can add color to
it it is durable easy to mix fantastic stuff I highly recommend it now when
you’re casting urethane resin should get yourself a scale so that you can
accurately measure the two components to the correct ratio and getting yourself
I’ll kitchen timer so that you can keep track of how much time you spend mixing
and working your resin is absolutely essential because ultimately the resin
has to go into a vacuum tank to be degassed before you put it into your
pressure pot to squeeze down whatever bubbles that are left if you’re using
such a setup here I’m just putting the resin into my vacuum tank and we’re
going to draw a vacuum on it and we’ll see a bubble up here shortly as we draw
the air out so we get a bubble free cast part you can see I’m keeping track and I
always have that timer with me so I know exactly how long it’s been since I mixed
those two resins together because I know I only have about a 14 to 17 min
it pot life before that stuff is just too thick and I can’t work it anymore
one of the reasons that I like the 3076 is that it has a fairly long pot life of
about fourteen to seventeen minutes this makes it ideal for casting it gives
me plenty of time to mix up my resin add a colorant if I need to do that and then
put it in the vacuum tank so I don’t have to worry about some stuff kicking
off in three to five minutes and I’m just pulling my hair out because I can’t
get apart this gives me plenty of time just another reason that I like this
stuff now for demonstration purposes of this
video I’m actually pouring this resin out of this cup into my mold into that
little hole that is not the way I normally would cast apart and I’m going
to show you how I normally cast apart here because the stuff is starting to
set up and I’m getting worried because the stuff is not flowing out the vent
holes yet so I’m going to get a syringe and I’m going to suck up some of that
silicone I’m not getting any air in there because I’ve already degassed it
keeping it all in this system and I’m basically injecting that resin into my
two-part silicone mold very much the same thing that would happen if you were
injection molding a plastic part that is why they call it injection molding and
so that’s an essence what we’re doing we’re injecting the resin at high
pressure into that silicone two-part mold now it goes into my pressure pot
close the lid and we’re going to put about 60 psi or pressure on this thing
if there are any bubbles left in that part they will get crushed down to
microscopic size I also have the ability to add some heat in my pressure pot
resins tend to like heat particularly urethane resins now you’ll have to check
with your manufacturer in this case the innovative polymers resin if you can add
about a hundred 110 degrees of heat to your part
this will allow thin-walled or thin-film parts to cure at a little
bit higher rate you will can get them out of the mold in a couple of hours
with this additional heat otherwise it may take overnight after about 20
minutes it’s in the tank and I wait for it to cure
a couple hours later I left the air back into the tank and we take the part out
for D molding let’s take the two halves of the silicone mold apart just
carefully nice and gentle pry it apart we have some undercuts to deal with we
don’t want to rip the silicone but if you’re gentle you can get dozens and
dozens of parts out of a mold like this you’ll see there’s where we pour the
resin in it’s going to be easy to snap those pieces off and clean them and trim
them here’s some other parts that I made black white blue semi translucent you
can add whatever pigment you want material is very very accepting of tints
and colorant one last shot of a bubble free perfect part don’t forget to
subscribe to my youtube channel below you can also follow me on Twitter where
I’m tweeting about products on this planet and different projects that I’m
working on you can also go to the bots and website and sign up for the
newsletter and get occasional updates about the different projects that I’m
working on feel free to share this video on your favorite social media site and
let your friends know about it rock on

πˆππ‰π„π‚π“πˆπŽπ 𝐂𝐀𝐒𝐓 𝐔𝐑𝐄𝐓𝐇𝐀𝐍𝐄 π‘π„π’πˆπ: clear bubble free camera mounts Pt 2
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37 thoughts on “πˆππ‰π„π‚π“πˆπŽπ 𝐂𝐀𝐒𝐓 𝐔𝐑𝐄𝐓𝐇𝐀𝐍𝐄 π‘π„π’πˆπ: clear bubble free camera mounts Pt 2

  • March 24, 2016 at 2:41 am
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    You better try 3D printing

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  • May 20, 2016 at 8:53 am
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    its a brilliant video.
    We are casting transparent polyurethane in an aluminium profile which is open on the casting end. We degass the polyurethane and make it entirely bubble free and pour it into the aluminium profile . The gel time for our polyurethane is about 30 minutes. So post degass and mixing we still have about 10 minutes left .
    After pouring it into the profile the bubbles start forming again and again and again. its quite depressing to see bubbles in the profile. kindly help us out with a solution. We let the Polyurethane cure at room temperature for 24 hours. We do not have an option of pressure casting.
    Kindly help us out with a solution. Thanks

    Reply
  • July 18, 2016 at 12:04 am
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    How do I add heat to my pressure pot? What brand of pressure pot?

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  • September 29, 2016 at 6:31 pm
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    what happens to the syringe? can it be cleaned and reused? or is it wasted for each cast?

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  • October 31, 2016 at 11:52 am
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    Great video! I'm thinking about mass producing car spoilers using some sort of injection. Would you recommend poly for this or is there a harder material you would use?

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  • December 26, 2016 at 5:52 pm
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    this is ok i you need to make a lot of replica but if you need to get 2 or 3 extra i think it is cheaper to buy it considering the high price of resin etc…

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  • January 9, 2017 at 9:12 pm
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    hi thanks for the helpful video. can you recommend a casting resin that will rests heat around 120 Β°C (steam). I want to cast parts for a mini steam engine.

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  • January 10, 2017 at 10:32 pm
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    can you use polyurethane resin on ceramic molds or rubber silicone? thanks in advance.

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  • January 14, 2017 at 4:53 pm
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    great video, thanks!

    Reply
  • January 31, 2017 at 5:58 pm
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    what can i use to make the body for a rear car light? which resins?

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  • February 2, 2017 at 12:20 pm
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    I also would like to know if the syringe is reusable, those large ones in particular are not cheap.

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  • February 4, 2017 at 7:35 am
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    Awesome video. Thank you for sharing this. I love the results I get from degassing, but I so need a pressure pot as well.

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  • May 12, 2017 at 9:46 am
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    I'm gonna make so many dildos

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  • July 15, 2017 at 9:38 am
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    on what basis are these colours β€” oil, acrylic?

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  • July 19, 2017 at 6:53 am
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    excellent video and process

    Reply
  • September 20, 2017 at 9:34 pm
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    Hello Eric, I've been looking for a solid vacuum pump. What are you using there? It seems to be able to pull air out to create a vacuum and push air in for pressure casting.

    Reply
  • November 20, 2017 at 1:01 pm
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    Excellent editing and camera placement. Very enjoyable to watch. Thank you!

    Reply
  • December 19, 2017 at 2:27 am
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    I have Polytek casting resin easy flo 60 but I don't de gas it not enough time with only 2 to 3 minutes I need to mix larger amounts and cast more items I have a tank for degassing need to build a system like yours! impressive.

    Reply
  • January 19, 2018 at 1:07 am
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    Hi
    I wish to make a 30 cm silicone rubber sleeve with a uniform thickness of 5 mm , any ideas ? All I see on YouTube is nice solid products . Nothing was made hollow !! Thanks

    Reply
  • February 3, 2018 at 12:45 am
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    Whats the different between a vacuum chamber and pressure pot? If I already own a vacuum chamber should I get a pressure pot also?

    Reply
  • March 11, 2018 at 11:56 am
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    only shit that's so neat

    Reply
  • April 16, 2018 at 12:32 am
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    What vacuum chamber and pressure pot would you recommend purchasing?

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  • April 16, 2018 at 9:06 am
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    Great Videos! Very informative. Could you make a video of the use and construction of a pressure pot?

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  • April 30, 2018 at 7:40 pm
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    hello sir.. great work… how u clean the syringe? or is that one time use syringe?

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  • June 21, 2018 at 6:50 pm
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    Nice vacuum/pressure pot setup! Very nice how you added heat so simply!

    Reply
  • July 31, 2018 at 5:27 am
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    I can't figure out how to order the resin on their site. Anyone know how to place an order?

    Reply
  • September 5, 2018 at 8:18 pm
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    How do you clean the syringe after you injected resin?

    Reply
  • October 18, 2018 at 11:03 am
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    This is nearly identical to the part i want to make for my rifle. I need a connecting adapter from the rear of my rifle to the stock. Had the desire to make a custom part either by grabbing random PVC products at homedepot or casting my very own. Im just worried that material of the cast would eventually crack eventually from the recoil. Now im more interested in what you do than making my cheapy 9mm look like an MP5 lol.. If anyone has any tips i would appreciate it especially if they've used resin casts as a durable part rather than a prop

    Reply
  • October 28, 2018 at 5:51 pm
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    Hello. What type of silicone do you use for the mold? I have used a few different types and find that when pressure potting it seems to "squeeze" the mold making the molded part just slightly smaller than the master that was created to make the mold. Do you take that into consideration when making the mold, or does that kind of silicone not shrink?

    Reply
  • November 28, 2018 at 1:51 pm
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    Awesome video, Very imformative, Thanks I'm Looking into Duplacating parts for old Cars an Harleys that can't be had anymore

    Reply
  • January 6, 2019 at 11:53 pm
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    How do you clean out the syringe? Seems like frequent injections with a plastic syringe would clog it really quickly.

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  • January 19, 2019 at 12:52 pm
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    Can you do a video about slip casting resin in a RTV silicone mold. I am doing lamp bases so I need the volume/ size but I need a hollow part. Plaster is just too damn heavy, and not strong.

    Reply
  • February 28, 2019 at 11:30 pm
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    how do you regulate your compressor so it pushes out 60 psi? I can never figure that out

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  • May 19, 2019 at 1:58 pm
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    Great job and thank you for the playlist- can you add baby powder to resin Incase the part ever needs to be sanded?

    Reply
  • July 11, 2019 at 1:26 pm
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    Are you putting pressure on it or degassing with vacuum? I didn’t understand that part properly. Great video!

    Reply
  • August 7, 2019 at 10:26 pm
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    Nice video but I don't think you can call it high pressure injection as you do at 3:52
    No way you can reach high pressure with a syringe and if you could it would take more than rubber banda to hold the mold together.
    Still an interesting technic demonstatrtion

    Reply
  • September 6, 2019 at 1:11 am
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    Is there a special syringe for this? What’s the best way to clean it? Because i thought about washing the syringe before the resin cures but I fear that that thing will cure in the sink. Is there a product that dissolves whatever resin is left in the syringe? Thank you

    Reply

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