Kossel Mini FSR Bed Upgrade (MicroMake D1) by Lucidwolf

Last crawled date: 3 years, 3 months ago

I am so used to the comforts of the UltiBots D300VS+ with Duet controller, so when i got back the MicroMake D1 that was on loan; I had to upgrade it to V6 hot end and FSR for auto leveling. The Duet has really spoiled me.
Instructions for Micromake D1 hex heatpad:
You will need to print 3 sets of mounts, heat bed backers, and cover/clamps.
NOTE: For those that just have the D1 i made some clipped heat bed backers that should fit your build area.
I cut a 3mm thick silicon pad into the shape of the heat pad.
I lined the bottom with aluminum tape to act as a IR reflector.
Screw the heat bead backers through the six holes while attaching the glass plate. I had to trim out the silicone in the slotted holes so the glass clamps could fit.
Install the FSR mounts on the center of the beams using Tnuts
Cut a small circle of silicon pad and place it in the center of the FSR mounts.
Tape the FSR over the silicon pad
Set the bed down, the protrusions should land the FSR that float on silicon pads.
Install the covers and the clamps to keep the bed from sliding left to right.
I also designed a new console mount sine the old one wants to hang off the top of the rail and it let plastic get into the cracks. For those who dont have a bigger printer just print LHS/RHS instead of the full thing.
The bed is no longer hard clamped to the frame. Instead it floats and is rigid side to side from the clamps. This lets you use removable print surfaces. Each time before you print you can run a auto level in less than 30 sec at temp and be ready to print.
Software/Hardware:
I am running a modified version of an SeeMeCNC octoprint plugin that sets my temperature and then runs a quick bed level using Echer3D routines (Same code from Echer3D that is in Easy Delta Pie). I can still use Easy Delta Pie and the SD card, but again Duet spoiled me so I run an Octoprint so i can just WIFI my files and see status from anywhere in the house. Also with a FSB my Easy Delta Pie runs extremely well. Before i would still have to do some manual leveling tweaks.
I am using the JohnSL FSR board firmware on a Nano I had lying around. I would recommend you purchase the Kit if you are not the hardware savvy type. Adding up cost of FSR sensors, time to solder, and nano the ~30 bucks plus shipping is a good deal for a kit.