Mach1monkey ROTOMO | DIY Rotational Casting or Rotomolding
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- Опубліковано 7 гру 2019
- Hey what's up UA-cam! I've uploaded a video explaining how to not only use my rotomolder but how to cast parts using it and a 3D printed mold!
Casting:
www.reynoldsam.com
fiberlay.com/retail.php
www.tapplastics.com
Video:
Check out the Crafsman!!!
/ @thecrafsman
Buy a rotomolder:
mach1monkey.com
mach1monkey.square.site
Music:
Buddha by Kontekst / kontekstmusic
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Put a small hole on each half and use air pressure to pop the molded part out of the mold.
That’s a great tip/trick! Works really good with silicone/ urethane molds as well! There was a slight undercut where I split my mold. Between that and the direction of the coarse printed layer lines it was a bit of a struggle. I could sand it down some more to help get it out as well.
Thanks for this video! Also, thanks for name dropping some other suppliers in our area! I'm down in Olympia, and trek to Reynolds often, so will have to hit Fiberlay and TAP Plastics on my next trip, too.
Reynolds is definitely the coolest spot but the others carry somewhat more industrial supplies. The aerospace materials and composites from Fiberlay are awesome.
great video
Amazing. Good work. Crear tutorial.
Thank you! Glad you liked it, hopefully more to come soon!
How in the hell you don't have a million subscribers is beyond me.
Thank you! I probably need a few more videos for that. Hopefully 2023…?
This is interesting: using modern day thing-of-the-future FDM tech to manufacture from a rota mold, cousin to casting, one of the oldest, basic and least expensive methods of making parts.
A rotisserie motor would be ideal for this.
I came across this video because I was looking to see whether anyone had made an idea I had a few years ago. My idea is like this but using thermoplastic, like conventional rotational moulding. I was going to buy an oven with built in rotisserie, then build a rotation frame like the one in this video. The moulds would be plaster of Paris castings of anything I wanted to mould or CNC mould tools and the mould material would be any thermoset or thermoplastic within the range of the oven.
Yep! A rotisserie would be great idea. All metal parts would be the start then an oven large enough to handle the rotation without hitting the top, bottom or sides. Thanks for watching and commenting!
Hey really said alright hahahah classic!!!
Are there plans available somewhere for the rotomold rig? Thanks, great tutorial, good clarity and pace.
No plans as of yet. I have been thinking about it but at the moment it takes some custom tooling to build them. I do have them for sale if you go to Mach1monkey.com
I'm in the middle of building a small batch right now. Thank you for the compliment! I post my more recent work on Instagram @mach1monkey. I hope to have a few more videos up soon! Take care!
@@mach1monkey Sweeeeeeet. Good to know you sell them. I was thinking aluminum frame and a bit larger for an electric motor I have. But those are perfect for small polyurethane castings. I'll bookmark your webstore. Thanks for the tip 👍
I want to roto or slush mold some dozens of rubber-like bladders, I'm wondering if that could work in your rotomolder. I would 3-print the mold halves. My project involves parts resembling hot water bottles. Could you also advise the elastomeric material(s)? Thank you!
Hello! That’s great! I would recommend a shore A urethane with roughly a 15-20 minute cure-time. 40 durometer if you want it “squishy” and 60 durometer if you want it more firm.
Smooth-On KX Flex 60 Pourable Urethane Rubber Elastomer Trial Size a.co/d/iaf0sSf
Or something similar should work. Double check the gel/ setup time as you really wouldn’t want to be spinning the rotomolder by hand for a hour. It is a good work out however. 🤣 Hope that helps!
Could you print a positive mold to cast a silicone mold which would then release more easily?
Hey Kev! Absolutely! This was just a demo of what can be done with printing a mold vs. gong through the process of making a high polished finished master then making a multipiece mold. THEN rotocasting it. Quick and dirty. If you look @crafsman -he did that with his lightbulb mold. Thank you for commenting!
could i use SMOOTH ON 66 D as my rotating resin... or is it only a specific resin that must be used in roto casting... SMOOTH ON 66D is aquarium safe and that is what i need... it is also very fast drying / hardening.
Hey! You could use it for a small mold as it looks to have a very short pot life. I would recommend a minimum 5-7 minute pot life/ cure time to allow enough of the resin to sufficiently coat the inside of a larger mold. Thanks for watching!
This is fantastic, have you ever rotomolded any rubber/latex/flexible vinyl or pvc? And would it be possible to rotormold your own inflatable boat fender/buoy?
@ironfistcontent
First question no. Second question it’d probably be less expensive to do a single one in fiberglass due to size. For more than 10 parts def no, find a rotational molder.
@@doncallangher6177 not sure if I follow, so your saying that if I'm making more than 10 pieces of boat fenders to have them made?
I would like to create a custom made pvc boat fender thing,
The inflatable part is important as it allows it to be deflated for storage or shipping and can easily be inflated when at right destination.
How should I go about getting it done?
Thanks in advance
@@legacygym1 Here are the basics.
You didn't mention the size of your boat fender thing, but for example, a kickbox base on a Century Wavemaster would probably cost around 10-20K built by a roto molder, stateside. If you made something that large yourself it literally becomes a full time job. And would require shop resources like table saw, band saw, sanders etc. Not to mention lots of materials. You have to put a value on your time and cost of tools.
Rotational molding is a good choice for rigid materials like that kickbox base. The base comes out of the mold sealed, then a secondary operation is done to install a cap or plug to allow the base to fill with sand or water. Or leave it sealed and it stays an air filled flotation device like a buoy.
However, flexible materials are unavailable for rotational molding. If you want a boat fender similar to a large, hot water bottle, with a thick rubber wall that can be inflated/deflated many cycles, I don't believe that's possible. I suppose you could take a couple thick uncured rubber sheets, build a form shaped like your boat fender thing and make something, but that's beyond my pay level. Again, lots of labor and trial and error likely. And, you'd need a large oven to vulcanize it.
Don, that’s some excellent advice! Larger parts do need a larger rotomolder 😊. I have however rotocast inflatable bladders with 60 and 70 durometer urethane. Just like Don mentioned you can embed a plug into the mold. I used volleyball valves in mine so I could use any standard needle inflator. You can order the inflator valves off of Amazon I believe. I need to do a video on that…. Thank a for the question!
hello my friend, very nice your project. I am from Brazil, considering to produce ruber hand grip for motorcycles, from seventies sixties, that is not available anymore in the market. Do you think it is possible to rotomold rubber?? any hint will ber very welcome. Regards, Flavio
Bom dia! I would suggest standard casting for the hand grips. Check out the Crafsman, he’s got some great tutorials on how to cast with soft urethanes. I’ve made grips in the past for my 76’ KZ400! I used a three part printed mold to make them. I would suggest an 70 durometer urethane for your grips. Have fun with them and use different colors!
Any chance to get one in Europe (Belgium)? Nice content
Thanks Xander! Sure, I've sent a quite a few rotomolders to Europe. Just be aware that I can't control what international customs charges for import fees. I plan on making another batch in the next couple weeks. I'll be sure to let you know when they are available!
What the idea behind this device? It spreads resin evenly?
Yup. It's automated slush casting, not Rotamolding BTW.
Yes indeed, imagine how they make kayaks, plastic gas cans, coolers/ice chests, Bigwheels, big play sets etc. It’s exactly the same process minus having to insert it into an oven to melt the plastic. The resin I chose solidifies with a chemical reaction instead of a thermal reaction. You could put it in an oven at a low temp and cast wax parts if you wanted to or you could make a metal or ceramic mold and heat it up with a torch.
The idea is to cast parts that you want to be hollow. That can be a lamp, piggy bank, vinyl toy, diy pelican case, mask, helmet, custom computer case, urethane rubber sports ball, protective gear, bumper covers. It's really up to your imagination.
Look like krillin from DBZ
Definitely anime inspired! I’d like to do some more work in blender to get it more exaggerated and d0 the rest of the body!
i can speak whit you
Hello! Sure what would you like to know?
Hey Gianpaolo, sorry for the late reply. Send me an email info@mach1monkey.com
Ok i can write mail
@@mach1monkey i write yhe mail
Um... that's *slush casting*. Rotamolding uses a heated metal mold and a thermoplastic polymer.
It's the same process and device. One is wood, the other is metal. I can put my rotomolder in an oven @ 250F and rotomold ABS thermoplastic in a metal mold. Metal rotomolders are more durable.
Shouldnt it be rot-A-molding?