Remix of Prusa i3v E3d Titan Mount by GeoDave

Last crawled date: 3 years ago

12/15/2018 Update
I added a drag chain mount to my 10" i3v & chained the mount to be 1mm thicker for the motor & used 4mm shims on 2 of the titan/motor mount screws & a drag chain bracket attached to the other 2 screws. I had to change the 3-M3x30mm screws to M3x35 & the 1-M3-25mm screw to a M3x30mm screw. There is also a V-slot mount for the other end of the drag chain on the end of the V-slot. For mounting the drag chain, I used 2- M3x12mm Flat Head Socket Cap Screws on each bracket. To attach the V-slot bracket to 2020's, I used 2-M5x12mm button head screws. The Titan X-carriage also has 3 nut traps added for the M5 wheel screws making it easier to tighten them. I am using a 500mm drag chain from openbuilds.com
I wanted to be able to adjust some key dimensions on this, so I used the bracket design from http://www.thingiverse.com/thing:1540768 & carriage design from http://www.thingiverse.com/thing:1235817 to make an openscad file that was adjustable. I had a problem with getting the eccentric wheel tight after printing from a printer that was a little out of calibration the 1st time I printed this part, so I added the optional additional wheel tensioner cut as used on this part: http://www.thingiverse.com/thing:1825040 . The cooling fan design as shown in the 2nd image is from here: http://www.thingiverse.com/thing:1571526 . There is not Z Probe with this design, but I might add one later.
The titan extruder blank I used was: http://www.thingiverse.com/thing:1514324 & the e3d Lite6 hotend model I used was: http://www.thingiverse.com/thing:1718350
I included 2 stl files with & without the additional wheel tensioning option.(Prusa_I3v_Titan_Mount_WithWheelTensionCutout_Rev19.stl, Prusa_I3v_Titan_Mount_Rev19.stl) as well as the openscad source file. The other STL files are used for reference in the assembly display in the openscad file
I also used a 5mm diameter hole for motor mounts as was used with http://www.thingiverse.com/thing:1540768 design. Change the variable Mot_Hole_OD = 3.6 if you want a tighter tolerance for these holes. You can also change the wheel spacing & belt tensioning spacing if you want. The design I remixed has 49.4mm for the belt tensioning.
The M3 locknut for the right side of the belt clamp is pretty close to hitting the titan extruder & if I printed this again, I would probably shift the extruder up another 1mm by changing Bracket_Y_Offset = 2; and change Line 335 to:
rotate([0,33.3,0])
I have not finished hooking up the wiring, but it fits on the V-Slot nicely & I have more X-carriage width & will have to move the X limit switch in a little.