20mm Plastic T-Slot
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PLA from £6 inc. UK delivery on letter-sized prints. We slice, print on a calibrated Creality K2 / Bambu A1, QC and post.
20mm Plastic T-Slot - Rev 2
Completely redesigned; the new beam prints faster and is stronger both against deflection and torsion.
UPDATE: Added DXF of Profiles. Naming convention is [dimensions]-[bolt size]-[Wall Thickness]-[Multiplier]. We are starting to prefer 1pt6 (1.6) wall thickness profiles and find printing them No Infill, 1 Extra Loop, No solid Layers, with a trace thickness of .8mm results in a quick and adequetly strong beam.
These beams are being designed as the main structural component for a 3d printer though arguably they are of more use as a general hobby framing and mounting set. That said they are designed with both printing and commercial extrusion in mind.
If printed in ABS, they can be solvent welded with the aid of a T-Slot Welding Jig http://www.thingiverse.com/thing:13598 and ABS Glue http://www.thingiverse.com/thing:14490 . A center hole increases the beams second moment of inertia while aiding in fusing beams.
PLA beams are more rigid though they are not as easy to fuse into various lengths.
<b>Hardware</b>
An example of Friction Fit hardware is located -
Here - http://www.thingiverse.com/thing:9797
& Here - http://www.thingiverse.com/thing:13599
The standard beam profile is meant to accommodate both M3 hardware as well as 6-32 nuts and bolts. Both bolt heads or nuts will fit in the slot with an insert provided to help guide and captive M3 nuts. 6-32 Nuts will captive natively.
Alternative profiles are provided for M4 /…
