What size would you build LR4?

LowRider CNC Advice
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I will for sure build a LR4, but I am wondering what is the best size everyone likes. I was thinking 4x4 since I will have my LR3 that handles full sheets until I sunset it in the future, I never really found anything other than cutting cabinets for the full size, I just had the space.

So what size do you have and would you go bigger or smaller?

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Personally, given what I mostly cut, am going smaller, at least to begin with… Have LR3 49.5" Usable X, built a full sheet sled, but the LR3 almost entirely lives on a bar height torsion’sh bench sized for 4’ x 2’ cuts, with a 66" x 42" surface sized to eventually enclose the LR3. Will be keeping the LR3, have a Maslow 4 too. Was planning to be using the Maslow more, but LR4 beta came along.

With LR4’s goals being rigidity, rigidity and rigidity. I may as well see what performance will be like with a narrower 2’ (+ extra inch for lead in/out) Usable X gantry while still using relatively cheap 1" EMT.

Not sure if I’ll end up keeping and using LR3 for some unfinished experiments, or give away to a friend in CNC need.

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for my needs, seeing those 150MM feed speeds… I think that’s 3 time the speed I was wanting, so I’m estatic with the rigidity and improvments I’ve seen.

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At present, the plan is to replace my Primo with the LR4. The Primo has a cutting area 25"×37", and I set up the LR4 RC2 with a cutting area of 25"×49", so it will deal.with a quarter sheet.

Once a release version is out I might replace the LR3. It has an oddball cutting area of 40.5"× 61" which gives me some freedom for placing material, but I hardly ever use more than about 24" of Y this way, but I do use the space to put material down. A replacement would have a 49" X span, but probably not full sheet, I just don’t have room, I think.

I’m kind of attached to the LR3 though, it’s done some fun things for me, but then again, so has the Primo. The Primo will be rebuilt though for a smaller footprint. I have a few aluminum cutting projects that I’d like to do and a 16"×16" Primo would fit the bill nicely, I think.

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I’ll be upgrading/replacing my full sheet LR3 for sure. Cutting area that is slightly more than 4’x8’. I’m a simple man that doesn’t want to have to break down sheets of plywood, I let me LR3 do that for me and I plan to do the same with the LR4, drop the sheet on the table and go.

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I’m going to correct the limitation of my LR3 and make X wide enough for a full sheet but initially only make the Y the length of the short side of a full sheet so I can make the table out of one board. Then when I need to make something full sheet length I can either feed it through or just put longer Y belts on.

Speaking of - there’s going to need to be a new calculator. Guess that can’t be done till the designs finished

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I could not agree more. I have a full size table saw and all that but I just cant be bothered. Let the LR3 do it for me. That’s the point of these robots right? Hahahaha

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