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speedster1fast1 (December 31, 1969 at 6:59 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 (December 31, 1969 at 6:59 pm)
Good point. I doubt this could handle the heat necessary to melt resin pellets. Seems an erector set is required.
csven (December 31, 1969 at 6:59 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 (December 31, 1969 at 6:59 pm)
why reinvent the wheel. so whats the NEW part?
Treknologist (December 31, 1969 at 6:59 pm)
Another ingenious use for construx. How do you set up the gears & pulleys to get the inner ring to rotate?
scud180 (December 31, 1969 at 6:59 pm)
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 (December 31, 1969 at 6:59 pm)
Yes, construx. The amazing building set that should not have been discontinued in the 80's.
vincent1230909 (December 31, 1969 at 6:59 pm)
Whats that for??
NickBlackDIN (December 31, 1969 at 6:59 pm)
makes it hollow inside (lighter, less mateial, and no injetion flanges)
BRUTUALTRUTH (December 31, 1969 at 6:59 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. |
