Z-axis servo/Stepper motor Pen Plotter mount for V-Slot

prusaprinters

12/28/2020 Update: I added the fileRP_200411_Servo_Z_Dual_X.cfg* that has my klipper configuration using the servo for the Z-axis for reference. Z-axis servo/Stepper motor Pen Plotter mount for V-Slot I needed a pen mount for the Rolling Plotter I am designing and <a href="https://www.thingiverse.com/thing:2349232">https://www.thingiverse.com/thing:2349232</a> was pretty much what I wanted except I needed it to mount to a 2020 V-slot. I redrew it in fusion 360 like it was & then modified it to work for my design. I had some troubles getting the servo to work with Marlin firmware, so I made a couple of other mounts to use a nema17 pancake stepper & a 28BYJ-48 stepper motor. I then found a way to use the servo with klipper firmware, but might use a stepper motor later. I found the models of the servo, sharpie, & 28BYJ-48 stepper motor on grabcad, but didn't include them in the fusion 360 assembly file here. The build log of my printer can be found here: <a href="https://openbuilds.com/builds/a-rolling-plotter.9207/">https://openbuilds.com/builds/a-rolling-plotter.9207/</a> Here is a video of my plotter in action. For any of the mounts print: Pen_V_Mount.stl V2020_Z_6_4mmShim_Plate.stl Base_Slide_Mount_Long.stl orBase_Slide_Mount_Short.stl. The Long version is 5mm longer for looser spring V2020_Z_6_4mmShim_Plate.stl 4 -M3_Spacer.stl if using M3x16mm screws to mount Pen mount to V-slot mount For the servo mount style you can mount the servo on which ever side is more convenient for you. Print: Z_Servo_SideMount_V2020.stl Edit theZ_Servo_SideMount_V2020.f3d file if you need to change any of the design. For the 28BYJ-48 motor mount you can also mount on which ever side is more convenient for you. Print: Z_Mount_28BYJ-48_V2020.stl Horn_28BYJ-48.stl Edit theZ_28BYJ-48_SideMount_V2020.f3d file if you need to change any of this design. For the Nema17 pancake stepper mount, I only made a mount on one side, but you can mirror the part if you want it on the other side. Print: Z_Nema17_Pancake_V2020.stl Horn_Nema17.stl Edit theZ_Nema17_Pancake_V2020.f3d file if you need to change any of this design. Depending on how deep your motor sits back, you might have to use the 4mm thicker*V2020_Z_10_4mmShim_Plate.stl rather than the 6.4mm plate above. If you need more depth than that, you can edit theV2020_Z_6_4mmShim_Plate v3.f3d to the size you need. I printed all the files at .2mm layer height with eSun PLA+ I printed the Base_Slide_Mount with 4 perimeters & 30% infill All the other parts I printed at 4 perimeters & 50% infill. I only used supports on the front ofPen_V_Mount.stl print. I mounted the Base_slide to the V-slot mount with 4 - M3x16mm screws & locknuts with a plastic 2mm washer. 2 - M3x10mm screws with locknuts to clamp down the M3 rods on the slider 1 - M3x16mm screw & nut to clamp pen in place, you might want a longer screw for smaller diameter pens. 2 or 4 - M5x12mm screws with T-nuts to mount to V-slot. Since pen is light, I only used 2 screws 2 - M5x16mm screws with T-nuts to mount V2020_Z_6_4mmShim_Plate to carriage. I cut a 2020x250mm V-slot in half for the vertical V-Slot & using the openbuilds V-Slot Gantry Plate-20mm for carriage which is 65mmx65mm. The springs I took from pens from a dollar store. Those springs were rather long, so I cut one in half & used half on each side. The M3 rods I took from an old DVD drive as mentioned in the build I remixed this from. I have only tested the servo mount, so let me know if you find a problem with the other 2 mounts. I sized the nema17 pancake mount around the pancake motor from zyltech.com. All pancake motors are not the same depth. Category: Art Tools

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