Remix of Filament Guide Tube to convert to openscad and make Parametric

thingiverse

I've been using the Universal stand-alone filament holder on my Prusa i3v 10" for quite some time now and I wanted to use it on my Folger Tech Kossel, but needed to adjust some dimensions of the parts. To convert the parts that I need for my Kossel from this project into openscad, I'm starting by uploading this as it seems like it could be very helpful for others. There are a few things you can change, but variables 1 through 8 should be easy to follow. All the other variables you might want to use on your computer with openscad. Length of Arm (136 original) Arm_length = 136; Height of Guide Tube Stem Guide_stem_height = 70; Filament Type (1 = 1.75mm, 3 = 3mm or 0 = both) Filament_type = 0; Filament Slotted opening in top (1 = Yes, 0 = No) Top_slot = 0; Rotation Angle of Guide Tube (negative is clockwise) Guide_tube_rotation = 0; Guide Tube X offset (Not usually needed) Guide_x_offset = 0; Diameter of hole for 1.75mm Filament Filament_175_od = 3; Diameter of hole for 3mm Filament Filament_300_od = 4; The biggest changes I had to make to get a nice straight path to the extruder were the length of the arm and rotating the guide tube by 30 degrees clockwise. I originally thought the slotted opening in the top would be great, but after printing a version with that slot, it seems like the filament might come out too easily. I left that variable there in case someone wants to try that. I included the openscad file and the stl file I'm using on my Folger Tech Kossel. There are some other minor variables you can also change if you use the openscad file on your computer. The variables I changed for my Kossel were: Arm_length = 116; Guide_tube_rotation = -30; The only other part from this project that I need to change is the spool holder base for 2020 so I can use M4 bolts and a slotted opening for the bolt on the base. I've essentially already finished this as well as the spindle, centering cone & bearing wheels. I just need to get a nice fit of the spindle on the base. I will upload the other parts I am converting to openscad when I finish them.