Architectural USA

csven (June 28th, 2008 @ 6:23 am)

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

csven (June 28th, 2008 @ 6:02 am)

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 27th, 2008 @ 10:02 pm)

why reinvent the wheel. so whats the NEW part?

Treknologist (May 13th, 2008 @ 10:09 pm)

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

scud180 (March 11th, 2008 @ 3:01 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 @ 3:55 pm)

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

vincent1230909 (January 31st, 2008 @ 12:00 pm)

Whats that for??

NickBlackDIN (January 25th, 2008 @ 1:26 pm)

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

BRUTUALTRUTH (January 19th, 2008 @ 12:20 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 13th, 2008 @ 11:53 pm)

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

GirthMeatlog (January 1st, 2008 @ 9:01 pm)

Construx.

foxacoustics (November 9th, 2007 @ 8:26 pm)

What is it made of? Looks like a Erector set!