CAD321,
One other thing about the 3DR Simple is the choice of Spectra line versus belts.
I built mine with Spectra line and have the belts and pulleys to upgrade but have not done that yet.
Some people have complained about skipped steps, loose spectra line that can not get tight, and the plastic pulley spinning on the motor shaft.
I have to agree that with the spectra line there are skipped steps.
I was very lucky to be careful when winding my line onto the plastic pulleys and followed the directions exactly, not something I do well.
I did have some difficulty getting the spectra line tight enough.
So, anyway, you will want to plan on upgrading to belts. Otherwise, skipped steps and loose spectra line.
One other thing about the 3DR Simple is the choice of Spectra line versus belts.
I built mine with Spectra line and have the belts and pulleys to upgrade but have not done that yet.
Some people have complained about skipped steps, loose spectra line that can not get tight, and the plastic pulley spinning on the motor shaft.
I have to agree that with the spectra line there are skipped steps.
I was very lucky to be careful when winding my line onto the plastic pulleys and followed the directions exactly, not something I do well.
I did have some difficulty getting the spectra line tight enough.
So, anyway, you will want to plan on upgrading to belts. Otherwise, skipped steps and loose spectra line.