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Don't need HGH35 that's massive overkill. 20mm will be fine 25mm Max. After that your just wasting money and increasing weight for little to no benifit.

Also Like Rufe0 mentions you need 4...

Kinda hard to see whats going on but you definitely need a wider gantry with 2 carriges per rail like this
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I'll echo Jazz's comments. Plus it looks like there is no gantry as such, just a pair of rails which support the spindle?

This might be OK on a plotter or laser cutter but if you want to cut...

Hello and Welcome.

Ok well for both these Tasks then this design isn't very good.? The moving bed is too weak for aluminium cutting and the level of accuracy you'll need for PCB this setup will...