After replaced the LR3 with a fresh LR4, the time to bury my MPCNC has come.
I really liked the Primo design on paper, but after builded I realized that was not a machine for me, probably cause I was already used to the LR3, way stiffer.
So now I’m building a 400x400mm LR4, mostly for metal and really hard material.
This will be an enclosed machine, with VFD Spindle, compressed air and maybe vaacum, all controlled by Gcode.
This is the actual state:
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Ohh nice you have the Vevor spindle, do you need tools to change the bit?
Looks like it’s going to be a very capable machine!
Sweet looking Strut, is that HDPE?
Looks great!
I’ve built 2 of these LR4’s now and they are easier to build than an mpcnc (which I built mine 2x) and with properly calibrated parts and very stiff. Yes, squaring mpcnc isn’t exactly simple either with the bearing clamp tightening procedure for the core. I’m going to convert the MPCNC to a lowrider beta.
@Ryan do you have an MPCNC conversion kit? rails, z screw motor couplers?
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Not yet. Conversion kits are a lot harder than upgrade kits in terms of how the shop checkout works. Well, see what I can do once the instructions are done (enough).
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You’re making me look bad. Going to build two LR4s before I get my LR3 upgraded.
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I have a Primo, but I am also looking to turn in an LR4 for all the same reasons.
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I am absolutely in love!
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Yes, classic two wrenches style
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Yeah, they where there only to verify the length of the bottom tube, if it’s too long XZ plates don’t fit square
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Plexyglass, but probably they’ll be replaced with aluminum ones.
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Ok, more parts have been printed, now I’m confident the 700x700mm bench will be fine. It’s time to design it!
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All i have is my Primo but waiting on LR4 parts & pieces delivery today. I LOVE the Primo so I can’t even imagine how much more I would love the LR4.
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Am I wrong or are there airplane’s silouettes on that spoilboard? 
Look at the red airplane in the upper left corner of that picture… Airplane silhouettes are very likely on that spoilboard…
@Rico_LRS you are 100% correct. 
That red plane in the upper left fuselage was cut on that Primo as were 100’s of others. @SupraGuy that and the box of 1/2” balsa lower left. Hahaha.
My hobby of building and flying control line airplanes (that dates me lol) has been replaced by drawing and cutting parts for obsolete planes of the 40s 50s and 60s. And I have Ryan and they rest of this forum to thank because Im that guy that Ryan can point to say, if Pete can do this (and he knows little to nothing about engineering) anyone can build and use this CNC machine.
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I saw the balsa, but wasn’t confident in identifying it from that photo.
I used to fly control line. The control line combat was always a blast. It took a long time to get into R/C because the combat with R/C just isn’t the same adrenaline rush. Something about having 4-6 aircraft all in a hemisphere 15’ radius while you’re ducking under and around the other pilots in the center while trying to cut off a ribbon from all the other planes… Collisions common enough, and more than once I had a plane in the air with a missing outboard wing. but I’d just tangle everyone up if I tried it now, it’s been 40 years…
I haven’t cut a lot of balsa woth the CNC, actually did some with the laser though. the simplicity of one channel control, but it was fun.
my R/C flying skills also got super rusty. I’m just getting back into it, and crashed a couple of foam board planes this summer. At least they’re cheaper to repair 
I had looked at other DIY CNC machines before I got to the V1 machines, but the cost and complexity was always a barrier to entry for me. Many DIY machines require a bootstrap CNC, or for you to get parts CNC cut to build yours, and the though of having basically a sheet of MDF shipped was just too much money, then the big stepper kits, and the NEMA23 motors… When I found the V1 525 machine, I thought it was close. I think the 525 needed supports for the core, and my printer at the time was “NOPE.” The Primo was out by the time I came back, and I already had most of the electronics and hardware. That was a project that I knew I could afford to do, and get results, so… Here I am.
Me too! I think for me it’s been about 45 years.
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