by juniortan, published
1. Broken up some parts for easier printing
2. Glue in the slots. I had to sandpaper everything to fit properly
3. Use M3 nuts to secure
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updated for less load/design complexity (although more parts to print) - its prototyping after all :-)
V3 files just uploaded, which should address shortcomings as highlighted by Bophoto. Any spring, handles will be attached to steel bolts/pins through the slider holes. This eliminates more weak areas.
Load bearing/transmission lines have also been strengthened. Now i just have to wait for USPS to finally deliver my spare nichrome wires (been a long time
amp;gt;:o ) to print and prototype :-)
@makerbot -at this point, am leaning towards no springs/triggers. but once i get them printed, i might change my mind :-) design parameters still call for a one-handed deployment via 2 looped nylon straps secured to the slots on the sliders, for the fore and middle fingers; in fact, they will be very similar to how you deploy a cam. anyway, that's why i am posting the sketchup files - go ahead and have fun with the source :)
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2. You might need to scale this up slightly to print properly in a cupcake.
3. DO NOT CLIMB ON THESE :-) I am just using plastic for prototyping the design angles and usability from the 'grab from rack and shove into crack' standpoint. Once qualified, the test mules will probably be made from steel for a start.
1. Steel cable for nut: 2.5mm dia. (which should yield about 10KN)
2. Metal sleeve for crimping steel cable
3. Steel pins: 2mm dia, 11mm length for 2 joints
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