WaRuIuSaGi (December 18th, 2008 @ 1:06 am)

Great job! As someone who works in the industry, I thought that you did a fantastic job demonstrating the process.

speedster1fast1 (October 11th, 2008 @ 6:30 pm)

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.

csven (June 28th, 2008 @ 1:23 pm)

Good point. I doubt this could handle the heat necessary to melt resin pellets. Seems an erector set is required.

csven (June 28th, 2008 @ 1:02 pm)

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).

romansura (May 28th, 2008 @ 5:02 am)

why reinvent the wheel. so whats the NEW part?

Treknologist (May 14th, 2008 @ 5:09 am)

Another ingenious use for construx. How do you set up the gears & pulleys to get the inner ring to rotate?

scud180 (March 11th, 2008 @ 10:01 am)

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.

lammyjammy (February 13th, 2008 @ 11:55 pm)

Yes, construx. The amazing building set that should not have been discontinued in the 80's.

vincent1230909 (January 31st, 2008 @ 8:00 pm)

Whats that for??

NickBlackDIN (January 25th, 2008 @ 9:26 pm)

makes it hollow inside (lighter, less mateial, and no injetion flanges)

BRUTUALTRUTH (January 19th, 2008 @ 8:20 pm)

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.

FUTUREFIGHTER (January 14th, 2008 @ 7:53 am)

Why you need roto machine for molding--?---