Rectangular Vacuum Former with legs
by chefmaki, published
except rectangular, with legs and a bent vacuum connection..
I also added more holes and grid lines to allow for more detailed molding
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Ok cool, that would be neat to make a 7x7 inch circle but I can't print that either. I have a solidoodle with binder clips holding glass so i can print around 120x120 square.
Â I'm not sure, I use RepG to create my Gcode..Â Â set it at a layer height of .20mm and 20% infill don't know what that equals in mm..
but I think actually shells are better at making this air tight then infillÂ it would probably work fine at 15% infill with like 4 shells...
I have a chocolate bar mold I wanted to make needed the extra length for that..Â Â Also I didn't want to waste too much of the plastic plates.
I'm thinking about maybe even making a round stand to use the entire bottom of the plate, maybe even use the uncut plates directly.. save the step of having to cut them up.. but that's kind of hard cause I can't print 7x7 circles on the replicator..
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should print with out support.
glue the stand and the gasket and the base together. (Use hot glue or something to seal any gaps it needs to be air tight)
place a rubber band around the poles of the stand. to allow for a better seal between the mounts and the stand when forming.
I used Magnets in the Plastic mounts to hold them together.. but you can use screws and bolts or you can hinge them together if you want.
use the Platstic template to draw the shape on the bottom of a plastic plate then cut that shape out of the plates..
these will be the plastic sheets you use with this machine.
you will need a pretty good vacuum to connect this too, I used my small house vac but it needed an adapter to fit the shop vac sized hole. so I included that too. (you may need to alter it to match your vacuum)
Also you will need a heat gun. tempreture is everything.. if the plastic sheets don't get hot enough.. the final mold will not have enought detail.
To use Vacuum Former:
Turn on your vacuum,
Place the thing you want to make a mold of on the stand..
Then heat your plastic in the mounts.
when the plastic gets hot enough, press the mounts down on to the base and the vacuum will do the rest.
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