Open Face Mold: Flexible Rubber Feet
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- เผยแพร่เมื่อ 22 มี.ค. 2022
- I make and open face silicone mold to cast some rubber feet for my Subwoofer.
I cover how to make the open face mold and then use urethane resin to make squishy rubber feet in the mold.
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Nice job, I put a rubber tile under my down firing sub.
Every time I watch silicone being degassed it amazes me. I would have never thought that much air gets trapped inside.
Great video and project. Feet look better than factory. New T-shirt logo: "Just say no to air bubbles." or "Molders love a vacuum." Mahalo for sharing! : )
Awesome
Really appreciate how you go through the entire process. I've seen other people do this sort of thing and not felt like it was something I could tackle. Something simple like this though I think I might could do. Thank you for sharing!
Another great video showing the process Eric. Glad to see our ColorFlex CF-80AM is working out well for your molded parts. We love the range of colors you can achieve with that system and it even does well in applications with UV exposure. We have parts outside for almost a year and they are still working well.
Sweet, good to know!
Always interesting contents, bro.
You got me started in doing more fancy designs.
Keep up the good work
Of all your videos I have viewed this would be my favorite. You took a real world problem, and solved it using your skill and your tools. The same thing I love to do every day. It doesn’t have to be a big complicated problem or a big complicated solution, it just has to work at the end of the day.
Thanks
Great design! Thank you for showing that process, I had to do something similar for a project in our living room. But I think I can make it better with what your idea.
Thanks
Very nice
Awesome. 👍 Glad I subscribed.
Great, me too
I use a small Bluetooth speaker that has a sub facing down and it was constantly rattling everything in my shop, I made a "disk" of silicone to put under the speaker and it helped in a very similar way. Great video as always Eric!
Yes, that probably works well. Thanks for sharing
you could have just walked to the hardware store and bought a couple of rubber feet. 🤣🤣🤣
Just found your channel and its beyond helpful, would the flexible resin youre using work for something like the sole of a tennis shoe?
Yes
my lazy way process.
3d model
drop resin or fdm printrr . use flex material . hours later post process
done
still interesting to learn molding
Would you have any flexible/rubbery urethane resin for casting large scale (1/12) model or even RC tires that you'd recommend?
Nope, contact some place like BJB enterprises for assistance with selecting the appropriate material
Great video sir! It's sad cos I can't find a resin same with that urethane. Only epoxy, polyester and fiberglass resin. Any alternatives?
Try BJB enterprises here in the US
@@EricStrebel I'm from the Philippines, I wanted to do a rubbery finish project, but can't find the right resin. I'm thinking of I can just use the moder instead of resin.
Don't know, try and see how it works
After pouring resin and hardner in mold, does this mixed need to be heated to dry? I mean exactly that it wouldent dry by itself in home temperature and pressure? Thanks indeed
It's a chemical reaction heat only assists in the curing
3 days ago I made a small casting using Alumilite Flex 80, with a 1:1 ratio based on weight. It never cured. It remained gooey for > 24 hours.
Could it have been affected by the frigid temps of my workspace?
After I exposed it to a space heater for several hours, it firmed up a little, but stil crumbled in my fingers when I tried to demold.
Hard to say, try again and follow the manufacturers suggestions
Nicee. What do you use to color the urethane?
Black pigment, so the part is opaque, as opposed to a dye that is translucent
Would be better to have speaker isolation stand / speaker isolation feets.
Does that urethane have to be pressure cured?
You will get better results if you do
Sorry to sound so stupid but I am very new to casting, when you refer to "PVA glue" in all your videos you mean the Elmer's right? (What you put on the bottom of the plastic foot to stick to the cup)
Yes, white school glue, should be a link in the description to get some on Amazon
@@EricStrebel Thank you
Best of luck with your project
Do you take commissions for shrinking silicone molds or resin cast?
? Not sure what your asking...
@@EricStrebel th-cam.com/video/we0nOvtAMw4/w-d-xo.html
@@EricStrebel something similar to that wanted a couple of 7.5 inches figurine shrinkin down to 6.5 inches
Ahhh, I see. It's possible to do, it is an inexact science for sure. Go to www.botzen.com and follow the directions to submit a project overview document for a quote. It would make an excellent video.
I would have 3D printed it in TPU
You cant get smooth surfaces like molded piece. I have a 3d printer aswell.
@@mirko.jankovic you can sandpaper it to make it smoother. why would you want a smooth surface in this case? you can't see it anyways
You can't really compare proper solid urethane with 3D printed TPU.
@@graealex whats lacking in TPU ?
@@padel24x7 For example, the elasticity depends on temperature. You'd also need to print it with a fairly high infill, as it would otherwise collapse from the weight. And you can't really recreate the same dampening characteristics with 3D printing, unless you go for 100% infill, and even then it is probably going to be too stiff to do a good job decoupling the speaker from the floor.
That’s a lot a faffing about to ruin a perfectly good subwoofer!
I had a similar thought. Not sure what rubber feet will do that setting it on a rug will not do, except that setting it on a rug is undo-able for when your wife is out of the house and you want to remember what it was like to have a great subwoofer.
@@baudgaud exactly. It would be easier to change the wife for a much more understanding model 😂
@@officialWWM Perhaps your experience is much different than mine, but it is quite difficult to find a woman who I can put up with who can also put up with me. Everybody has their quirks. My point is mostly that, while it is very cool that the presenter shows how to make a mold from an existing part (complete with naming the products involved) and then using that to cast a new part the same size and shape (again with the full materials list), I do not believe swapping plastic for rubber feet would have ANY dampening effect on a subwoofer!
I can believe that the hard-plastic feet rattle on the floor every time the bass hits, and that should wreck the quality of the woofer sound for an audiophile as much as for an annoyed SO... and we can see at the end that he does set the box on a hard tiled floor. If that were the case, why did the presenter blame his wife?!
So I can not understand "the bass is too loud" being corrected by changing the feet. It seems as sensible as getting a haircut in response to a broken bone.