Lemontron Rev D - Endgame Lemonstruder (Beta)

This is a major leap forward for Lemontron. It's an extensively tested 4.5:1 gear reduction. Do not build a Lemontron Rev D without it.

The purpose of this beta is to use the Endgame Lemonstruder on your Rev D Lemontron, as opposed to waiting for Rev E to drop.

Parts

• 1x D4xM3x12 (You'll already have it if you built a JourneyMaker. You can also sand down a brass insert, which you already have if you built a Lemontron) 
• 1x Creality K1C Gear (Select Variation: Black Drive Gear)
• 1x 16T Sprocket (Select Variation: 16-M3)
• 3d print all the parts. You can omit the right top plate, though because it's not been modified.
  • Print profile: Existing Lemontron recommended settings
  • For the gears, I also recommend using concentric top/bottom layer.

Assembly

Use these instructions in place of the current instructions for extruder assembly on the website.

1. On the extruder motor, swap the factory screw for a 25mm wafer head.
2. Test-fit the D4 shaft into the K1C gear. If it does not fit:
   1. Thread a long M3 screw into the D4 shaft and chuck the screw into a drill.
   2. Sand the D4 to a precise fit to the K1C gear.
3. Place a medium shim on the screw you swapped in, then screw on the D4 post.
4. Create the reduction gear by combining the two 3d-printed parts. Drop 1-2 tiny tiny drops of super glue on the seat press the seat to the gear.
5. Press fit the K1C gear into the reduction gear.
6. Attach the 16T sprocket to the motor (Oriented upside-down)
7. In printer.cfg, uncomment the Endgame Lemonstruder block, and comment out the Lemonstruder V1 block. You can re-download the cfg file.

Tips

• MAKE SURE TO SCALE YOUR ABS PARTS! Already scaled them for you but your printer scale could be different, different climate, etc, idk. Unscale them if you have scale set in your filament profile. Sorry, wish there was a better way to distribute it!
• Lubricate the gears with silicone lubricant or another plastic-safe lube.

More Mounting Options

There are sooo many more ways to attach the K1C gear to the motor. You can take one of your 10mm brass inserts from the BOM and sand that down to make a shaft. It takes less than a minute and works great. You can also use a PTFE tube with ID=3mm to create a shaft that insulates the K1C gear from heat. Experiment with more options!!!