Firstly, huge congrats on a fabulous project!

When assembling the Motor Bracket Front to the gearbox I found that it was tricky to get the fixing holes lined up and was concerned that I might cross thread / damage the threads. As the gearbox is already concentrically aligned by the step detail in the bracket you could increase the diameter of the fixing thru holes to eliminate this issue. Cheers, Neal

I have read your work on converting the Prusa MK3S to have a 4th-axis printer. That is really impressive!
I would like to ask if other types of Prusa printers or printers from other brands would work as well?

Regards,
Prumnea

I am very interested in your 4-axis printer, I would like to make a similar 5-axis printer, and the difference with your project is that I try to add two rotary axes in the print head, is there any related firmware support or tutorial document, thank you very much!

Questions by email:

Hello, I am currently following your mod for the 4th axis for the prusa and I have few questions.

1. any board that works on reprap with more than 6 steppers should work? XY2ZEB considering that the board I am thinking to use is having 7 steppers, i am currently can't get my hands on the duet mini 5+ because it is really expensive to get in my country, and importing it myself will be expensive as well.
2. there is any alternative for the nema11 with gearbox? as far I understand you want to use nema11 for it light weight uses and the gearbox to get higher torque?
   I can't somehow get my hands on it and thought maybe I could get my hands on different one?
   I can order this from amazon but it will take well over a month to arrive.
3. at the demo design I really didn't understand what is the "Nozzle_Tip_axis_offset" mean if you could have a simple explanation for this is will be great.
4. Can I get the whole step files for the project with the printer included? In case I would want to fit stuff to it on the github there is a step only for the printed parts.
   And thank you again for your amazing work, can't wait to start building this.