Following on from Kossel 3D Printer, these are some points that I have noted, whilst constructing a Kossel XL using the Sintron kit and a Kossel mini using aluminium vertices…
Following on from Kossel 3D Printer, I purchased some magnetic balls and ball joints on eBay, because they were extremely cheap (or cheaper than the other balls/joints that I had seen elsewhere), without really thinking about what I was going to use them for, or how I was going to mount them.
This is the tale of what happened.
Following on from Kossel 3D Printer, I was unable to locate a comprehensive parts list of the Sintron Kossel 3D printer, in particular a list of the fasteners. So, after examining the guide (Kossel mini instrution by sintron technology_v2) and the printed parts kit, I came up with my own list.
From Kossel 3D Printer
Back on the topic of stepper motors again, folks!
Whilst looking a parts for a Kossel, a large Kossel (see Kossel 3D Printer), I came across these aluminium vertices for 2040 aluminium from RobotDigg, see 2040 or 3030 Alu Vertex for Kossel XXL or XXXL. On that product page they recommend using Nema 23, en lieu of Nema 17, stepper motors and, indeed, offer a vertex machined especially to take a Nema 23 stepper motor.
Now, Nema 17 stepper motors are pretty well covered in the RepRap forums, and there are three common favourites. However, the choice is not so clear for Nema 23 stepper motors. I decided to do some research on which Nema 23 stepper motors would be appropriate.