Holders for pegboard by pbannister

Last crawled date: 3 years ago

Holders for mounting on pegboard. Also an exercise to bring up my CAD/FDM printing vocabulary. As the first picture hints, going through a series of iterations to work out what works (or not).
So far...
Holder for Screwdrivers - posted separately: https://www.thingiverse.com/thing:2405739
Arms - 4in and 6in arms (used for hand saws and clamps), and 6in "strong" arms.
Holder for wood rasp.
Holder for metal snips.
See also:https://www.thingiverse.com/thing:2405739
Major goals (as the above):
Use with common (in the USA) pegboard with 1/4" holes on 1" spacing.
Can use common drywall screws (or any "wood" screw with ~4mm outside diameter).
Does not damage the pegboard.
Anchors should be somewhat re-usable.
Very solid mount with screw/anchor together.
Minor goals:
Printable without supports (where practical).
Uses minimal plastic for the needed strength.
Strong as possible with the material used. (Slightly redundant with the prior.)
Note in particular the bit you do not see - the bits of plastic that act as anchors. I wanted something much stronger than a plastic peg. The majority of the load is taken by the metal screw. The bit of plastic that acts as anchor compresses against the pegboard hole and the back of the pegboard, just enough to hold the screw in place. The result is solid and strong.
If you end up moving around things a lot before settling on final arrangement, you might wear out some anchors, and have to print a few replacements. As the anchors take relatively little time to print (15-20 minutes in my case), this is acceptable.
Note that at present this design for arms is entirely suitable for lighter objects, but not as good as I would like for heavier objects. The problem is that FDM prints are stronger with than across the "grain" of the print. In the current print (when printed with the arm horizontal), the arm is reasonably strong, but the base above the arm is a bit weak.
If you print the arms in the same orientation as when on the pegboard, you do not need support structure. If you print the arms sideways, you must use support structures, but the base of the arm is stronger (due to the "grain" of the plastic).