Z-axis servo/Stepper motor Pen Plotter mount for V-Slot
Description
**12/28/2020 Update:** I added the file *RP_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 https://www.thingiverse.com/thing:2349232 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: https://openbuilds.com/builds/a-rolling-plotter.9207/ Here is a video of my plotter in action. <iframe width="560" height="315" src="https://www.youtube.com/embed/IIjZrsuUH6U" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> For any of the mounts print: **Pen_V_Mount.stl** **V2020_Z_6_4mmShim_Plate.stl** **Base_Slide_Mount_Long.stl** or **Base_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 the **Z_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 the **Z_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 the **Z_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 the **V2020_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 of **Pen_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.
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