Hi there,
my name is Markus and I built an MPCNC Primo over the winter. Since today marks my first major success in milling something nice (see below for details), I thought I’d share a few photos of my build.
I actually started printing the parts and sourcing the components at the beginning of last year. Unfortunately, things kept coming up, so I only started the actual build at the end of this January.
It’s the 25 mm version, so I used 25×2.5 mm stainless steel tubes, which are fairly easy to source here in Germany through online retailers. The rest of the parts are mostly from Amazon, while the screws were sourced from a proper hardware supplier.
The parts were printed on a Bambu Lab A1 using Sunlu PLA+ with the recommended print settings. The MPCNC has a working area of 690 mm × 350 mm × 81 mm.
Apart from the drag chains and the required mounts for them, all components are standard.
There was a small issue with the Jackpot3 controller I ordered from Elecrow. Two of the capacitors had come loose on one side, and since I don’t have the means to solder PCBs, I had to file a complaint.
But hats off to Elecrow, their response was super fast. I received a return label right away via email, and a replacement unit arrived from China just two days later.
I also quickly designed a housing for the controller, which also fits a Mean Well power supply. For the switches and the fan, I salvaged parts from my old, modded Ender 3.
The enclosure can be mounted under the table, if anyone’s interested, let me know and I can upload the files.
I had a spare table in the corner of my workshop, which I reinforced with a thick OSB board and an MDF board on top. I glued the MDF board onto the OSB using a thick layer of construction adhesive, which did a pretty good job of compensating for the unevenness of the table.
Since the rest of the assembly went quite smoothly and without any issues thanks to the excellent instructions, I was able to draw my first crown just two weekends later — with excellent results (unfortunately without any proof photo).
So I immediately moved on to my first milling attempts in foam. You might already get an idea of what I’m planning to mill later on…
XPS foam boards are not only great for the first milling attempts, they can also be used to build a fairly sturdy temporary enclosure.
My first attempts with an engraving bit were also successful.
So I was ready to get started — first with cheap hardware store wood, and today for the first time with roasted maple:
The quality of the milling is truly excellent, and the dimensional accuracy is within less than a tenth of a millimeter, which is more than sufficient for my purposes.
I’m using Sorotec bits (10 mm surfacing bit and a 0.6 mm slot cutter for the fret slots), as well as a SpeTool 6 mm end mill, a 6 mm ball nose bit, a 1/8" end mill, and a 90° engraving bit in a Makita RT0702.
Thanks for this really awesome design!
Best regards,
Markus
