Makercut i3 Lathe "Prototype/Simulation Model"

Hello my mechanical engineers & 3D printing friends,

Here's a project based on the Geetech i3 build platform, hence Makercut i3. Almost all parts come from this 3D printer except for a T8 spindle (400 mm for the X-axis), which I had to source separately. I would have liked to build it on a CyberBrick basis, but unfortunately, I no longer have time to work on it during my 4-shift schedule. Therefore, I would like to turn it into a community project. This project is entirely about a lathe that is largely 3D printable. The machine bed can be extended as desired, as long as the guide rods are long enough. Important: The tool changer for 2 holders is currently not functional because the locking pin is still missing. (The goal is to switch from T1 to T2 by rotating -180 degrees.) The carriage also needs to be optimized, as I wanted a machining diameter of DM=110 mm. However, it is not very stable in its guide now. Software: You have to flash the ArduinoMega to enable GRBL control, which is quite time-consuming, so I will try to build a version without WWK soon, as most GRBL boards cannot control 5 motors.

General: The type of material is up to you. E.g. I used carbon fiber reinforced material for the gear housing with 3 motors, the rest currently consists of PETG due to easier printability (Infill pattern: Adaptive Cubic). Also, pay attention to the material shrinkage so that the holes etc. fit at the end. Info: Print plate 5 is designed so that parts can later be clamped between centers with a spindle. ArduinoMega control runs via Grugru lathe.

I would ask you to share your ideas for improving stability, optimizing printability, etc., with me. Unfortunately, I don't always have time to read everything immediately, so please be patient.

Important: This version is not yet fully operational, more of a simulation model. If time permits, I would like to optimize it with you and build a final version for everyone.

Current parts:

1 pc. ArduinoMega GT2560,

4 pcs. 20B Stepper

1 pc. 24B Stepper for Chuck,

3 pcs. T8 Spindles (Must be adjusted in GRBL anyway, so the pitch doesn't matter.)

2 pcs. Linear shaft for machine bed 8mm (length as required for machine bed)

2 pcs. Threaded rods M10 (length as required for machine bed)

2 pcs. Limit switches

More detailed parts list for Geetech i3 pro B: https://www.geeetech.com/Documents/pro%20B%20building%20instruction.pdf?srsltid=AfmBOop5bUU7arQJEecuMojUOb6_tIES-Sw9Jk3OHp3J95poUoV870v_

Info:

To avoid wasting material, I currently ask you not to print the X-carriage located on build platform "1". I will endeavor to provide a more stable version. (However, it is sufficient for simulations.)

I appreciate any coffee donation -->   https://paypal.me/DiplSalvatoreLizard

Improvements and ideas are very welcome in the comments!