TAZ Plotter (for TAZ6)

prusaprinters

Simple plotter head for TAZ6 (and maybe other versions too). The "v1" design is loosely based Tech2C's "over-engineered" plotter design for the Hypercube printer (also here on thingiverse). I basically re-used his pen holding cart (carriage) and made a new holder that would fit the TAZ "V-groove", reverse-engineering existing Lulzbot STL files for dimensions. As you can see on the photo with owls, the pen was held very high up, which was still okay, but accuracy suffered (+-0.5mm). "v2" was supposed to address these issues, but since the "V-groove" didn't allow for mounting any lower, "v2" screws directly to the X carriage, so you need to unscrew the "V-groove" (4 screws) before mounting "v2". Since you might not want to trade convenience for accuracy, I uploaded both "v1" and "v2". STEP files provided as usual, in case you want to modify or CNC cut the design. ... Note (random facts): *Do not disconnect original TAZ extruder, just unscrew it and put it away. Disconnecting produced weird buggy movements for me, even after hacking MINTEMP with a resistor. The rubber band can be adjusted and held in tension by screws, for optimal pressure for the given pen (and fine tuned by how much you lower Z). Most bullet-point pens have significant slop of the tip inside the housing (pen). This can be easily eliminated by wrapping the drawing element in a few layers of tape and forcing it back inside (without the spring). See v2 in action: https://www.youtube.com/watch?v=C4Ra8TNE9k4 (sorry for bad quality) I printed mine in ABS, but modified the hole dimensions to default to PLA. If you print ABS, you may need to drill the M3 holes. Great and simple software for generating gcode from SVG is http://jscut.org/ (slight gcode modification needed to make it work with Marlin) Post-Printing Extra parts for v1: 2x short (~55mm long) 8mm rods 2x LM8UU or any 8mm ID and 15mm OD bearing/bushing 1x M3 screw (20mm or more) and M3 nut, for holding the pen 1x rubber band Extra parts for v2: 2x short (~55mm long) 8mm rods 2x LM8UU or any 8mm ID and 15mm OD bearing/bushing 4x M3 hex-head screw (20mm or longer) or M3 threaded rod with nut glued to it Inserted from the back side of the carriage, sliding left/right to adjust for clamp size 4x M3 brass inserts to serve as long nuts (cheap on ebay/banggood) 1x rubber band 2x M3 nuts and M3 flange screws (or just normal ones), 5-10mm long For holding the rubber band at a preset tension Category: 3D Printer Accessories