The story behind this build is a bit like a status on a Facebook profile, it is complicated
I got my hands on three 500mm and one 250mm Openbuilds Linear actuators. My intention was to build a MiniMill. Then I realized that I got almost all the parts I needed to build a C-Beam machine. Browsing through the Openbuilds machines, I noticed the Sphinx 55, and it was love at first sight. So I started working on that idea, and decided to go with the Sphinx 55, but with a twist: scratch the wheels, long live the MGN12 linear rails and the complementary MGN12H sliding blocks. So I ordered three pairs of 500mm rails and one pair of 250mm rails, together with 8 MGN12H blocks, and the rest of the items from the Sphinx 55 part list, of course excluding the things I already had and all the bits related to the wheels, as I decided to go with the linear rail.
For the plates, I realized that I am in trouble, so I looked for help around the internet and I found it in the person of Chris Laidlaw (firstname.lastname@example.org). He patiently took over to design and machined for me a set of custom taller plates that came out perfect.
NOTE: The set of custom plates are available for sale Deluxe Sphinx-55 CNC Rail Plate Set (seen at Openbuilds) | eBay
Here is a link to a YouTube video of the first real thing I cut on the machine
Please note that the vibration noise you can hear in the video is actually coming from a bolt and a spacer I forgot to to tighten.
For the controller I used a Duet 2 Ethernet edition, together with the firmware so generously shared by Ooznest.
Things still to do:
- enclosure for the machine
- dust collection system
- add the emergency stop button and a XYZ probe
Sphinx 55 on MGN12 linear rails
My machine is a combination of the Openbuilds Sphinx 55, MGN12 linear rails knockoffs and custom made plates made by Chris Laidlaw
- Build License:
- CC - Attribution - CC BY
Inspired bySphinx 55 and Ooznest Workbee