Glue Gun Support
by jmil, published
and then use the glue gun on MakerBot to do the extrusion. We are also testing other materials to extrude. Stay tuned!
This is the first version of the glue gun support. Each side takes about 3 hours to print. Screw together with M3 bolts you have leftover from your CupCake CNC. The wings fit over the z-axis bolts to mount directly in your CupCake CNC.
A way to automate glue gun extrusion is in progress and even more experimental than this glue gun holder...
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thanks Mark! will check it out. we kind of had this one on the back burner for a while, but stuff to use to cast is very good to know. sometimes we have use smooth-on polyurethanes which make very stiff parts. The problem is this thing is so long and tall the mold would be very big too unless we did a surface-coating to make the mold and then could get the PLA out again. Interesting...
Cool idea. RE the heat / melting issue - if you print a mould rather than the part, you could cast it in high-temperature epoxy - I use Conapoxy FR-1080, working temp is listed as I think 150 C, and will tolerate up to 180 C or so (starts to give off nasty fumes eventually though). For minimal shrinkage while curing I cast at 85 C overnight and then post-cure for 3 hours at 150 - if you go straight to 150 you get some shrinking / warping during the cure.
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The Gcode files were used successfully to print these supports in PLA. You may need to adjust for your bot, or if you want to print with ABS.
Still testing this design. Most likely you'll need to coat the holder with some sort of resin or silicone to prevent the heat from a glue gun melting its own support. Still in progress!!
Please email me if you have design changes or suggestions: jrdnmlr at the gmail place dot com
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