Hi to everyone here,

I've been working on a design for a DIY CNC Router for a little while and recently I said damn it, I need to build it. I've kinda gone headlong into it and started to order bits (probably a mistake) but I wanted to get some professional feedback to hopefully put my mind at rest a little.

I've attached 2 pictures of the frame work and also the completed (well almost) design. Its designed to take 400x400 materials with a rough cutting height of about 120mm. I plan to use NEMA 23's @ 2.2NM and 1.5kw spindle (er11) collet and it will hopefully be used to cut aluminium, delrin, brass (Maybe) etc. 1605 ballscrews and 20mm linear rails for the guildance.

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My goal was to try and make one for about £1000 but as I've added all the extra bits its about £1300 at the moment without any control costs. I think its more than likely £1500 by the time its all there.

These are what I have ordered so far as well as the ali extrusion and metals, nuts and bolts etc.
https://www.aliexpress.com/item/3295...17f54c4ddlTn1H
https://www.aliexpress.com/item/4000...17f54c4ddlTn1H
https://www.aliexpress.com/item/3305...17f54c4ddlTn1H

I have some concerns after I ordered these bits, more so as I started researching more whilst waiting for them to arrive. The linear rails and ballscrews have arrived and seem great, some of the rail blocks need looking at but I see that's a common thing. My spindle also arrived with the VFD which sadly doesn't have a ground point so I need to figure that out at some point. Still waiting for the steppers but after reading up about the drivers and power supply I am a little concerned they won't be up to the job.

I am currently learning as much as I can about the wiring and I think I am getting there with that but I do have a little confusion about the number of power supplies I need in total especially as I plan to use homing swtiches. Each day is definitely a learning curve.

Originally I was planning on using the Breakout board that comes with the stepper kit but adding up the extra costs of getting a serial computer and mach3 or even using LinuxCNC I am kinda now leaning towards a DDCSV2.1 for offline control. With that in mind I use Fusion for CAM so I'll need to sort a post processor out.

Anyway, enough of my ramblings. I'd be very much interest in any feedback or suggestions you may have.

Thanks

Tim B