DIY Roto-molding machine



Uploaded by: noenflux
Video Description:
This is an at-home roto-molding machine I whipped up in about 3 hours one night.
To build one like it you will need:
-About 20 dollars worth of Fisher Price Construx from ebay
-A drill (DeWalt's fit nicely, but anything should work)
-A few wood screws to hold down the Construx
-A piece of scrap wood
For my casting material I like using Alumilite and Polytek resins, they are both REALLY easy to work with and fairly cheap. Any RTV resin should work well as long as it has a short set time.


Tags for this video: casting DIY rotomolding slip spin

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What you have done ... ( 1 year ago by crispy52)
What you have done here is nothing short of miraculous really!
I was wondering if you could PLEASE elaborate on the opposite end of the machine, the opposite of the drill.
Your voice can't be heard that well in what you're saying about it, at least to me.
If you would, that would open up a LOT to me, and probably others too.
I'm sure it's all 'easy' to you, but to me, what you've done is really something, and I'd like to make one.
Thank you!
would that be cool ... ( 1 year ago by Gothiczartan)
would that be cool if they have or make products for casting rubber parts, flexible parts like for toys, rubber balls?
Great job mate ( 1 year ago by idareyou007)
Great job mate
My impression is ... ( 1 year ago by vacuumformer)
My impression is that "rotational molding" or "rotomolding" usually refers to a process where heat is used to solidify the plastic against the mold.
You might want to call this "rotational casting" or rotocasting. (Or at least add a tag or two so that people searching for roto-casting can find it.)
Array ( 11 months ago by hyggehund)
LOL!!!
buy a motor...
So do you have any ... ( 11 months ago by matt9741399)
So do you have any examples of parts you have made with this machine?
What is it made of? ... ( 11 months ago by foxacoustics)
What is it made of? Looks like a Erector set!
Construx. ( 9 months ago by GirthMeatlog)
Construx.
Why you need roto ... ( 8 months ago by FUTUREFIGHTER)
Why you need roto machine for molding--?---
Ignore the ignorant ... ( 8 months ago by BRUTUALTRUTH)
Ignore the ignorant remarks. This type of machine is good so that the mold is covered fully inside and no air bubbles occur. Well done and thanks for posting.
makes it hollow ... ( 8 months ago by NickBlackDIN)
makes it hollow inside (lighter, less mateial, and no injetion flanges)
Whats that for?? ( 8 months ago by vincent1230909)
Whats that for??
Yes, construx. The ... ( 7 months ago by lammyjammy)
Yes, construx. The amazing building set that should not have been discontinued in the 80's.
Ingenius idea to ... ( 7 months ago by scud180)
Ingenius idea to use construx to build it.
Only problem with Roto-moulding is it dosn't work so well for complex shapes, as some surfaces wont have as much material flowing over them, and you end up with thin spots.
Works great for simple shapes though.
In my old job, we used this proccess for makeing plastic water tanks, although we used plastic powder and heated it to 180c during rotation.
Another ingenious ... ( 5 months ago by Treknologist)
Another ingenious use for construx. How do you set up the gears & pulleys to get the inner ring to rotate?
why reinvent the ... ( 4 months ago by romansura)
why reinvent the wheel. so whats the NEW part?
Rotomolding is most ... ( 3 months ago by csven)
Rotomolding is most often associated with really big plastic playground toys (Little Tikes and Step 2 come to mind), for some large car interior pieces, and for urban vinyl toys. There are a number of practical advantages (e.g. molds are relatively simple) and monetary advantages (e.g. it's a comparatively low-cost investment process).
video juice ran out ... ( 1 day ago by speedster1fast1)
video juice ran out?
give me a break, he just didnt want us to see his failed roto-mold process.
but i will admit, it looks like it would work.



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