I’d imagine its not a big deal since they are glued and nailed but I see your point.
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Likely so, I was just saying it wasn’t ideal. As I stated in my post, it’s a good compromise for the simplicity. You likely wont get any penetration of the glue into the wood fibers so you’re relying on the strength of the primer to hold the part on and in this application it’s likely sufficient. Additionally you also have the nails.
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MDF is not all that great to glue in the first place. It can really drink it up. Other material could surely hold better, this is just a case of inexpensive and easy. Adding two more under table 2x4’s (+ $10) nearly takes aways the need for the box in the first place.
The point of this is to end up with a functional CNC machine that is very accurate for the least amount of money, easily sourced, and least specialized tools. Not necessarily the minimal viable product or the best possible product. The same design ethos as the MPCNC.
If for some reason you find this method not to be up to your needs You will have a fully functional CNC to very very easily make a fantastic Table or entire shed if needed.
On that same note I am always trying to keep the target person in the front of my mind, for simplicity’s sake let’s just call them a 12-year-old that can not use power tools when their parents are not home. Limited budget, enjoys making something that stuns the parents. BUT…just like the pinewood derby in boy scouts, sometimes the parents like to get involved and have a larger budget and more tools. I do not want to force any designs to limit what is possible. The thing about his approach is I want to spend all my time helping the limited resources person, I don’t really care to spend much time debating about what makes a 1% increase with the person that has more resources. Honestly, they are less grateful. Instead of saying things like “Dude, Bro, Check this out, I made a CNC machine!!!”, They say things like “I can not seem to get this thing to cut past 28.7mm/s your design could use 7% more infill right here”.
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Neat full sheet build, am increasingly liking the outrigger designs the community are building.
Personally would have appreciated seeing something like this and the 1/4 sheet sized table in the docs when first getting started with my LR3. LR4 docs look good to me…
For my damp hot-cold cycling unconditioned space in the PNW, I would probably seal interior MDF and exterior https://chatgpt.com/share/6793d8d4-9cec-800b-957b-e5244d4d15ed
I Sprayed the whole thing with spray paint, that should seal it enough.
The smaller version doesn’t need the outriggers. The next CAD is for anything 4’x8’ footprint and smaller, those are obviously simple. Then both the the CNC interlocking versions. All will be added to the docs. Unfortunately it is just super slow progress for some reason, maybe I bought decaff by mistake?
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Praying rarely helps. 
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