Comments sought on new build: A CNC Router for RC Gliders and Planes

[njhussey]

Ordered one lot of linear rails 1190mm long with 8 blocks on Thursday night, they arrived from Korea today at 8.45am......that's fast...straight through and no stopping at customs (if you know what I mean ) These I'll cut into two lengths, one 750mm long for the Y axis and one 420mm long for the Z axis. Ordered the ballscrews from Chai today so waiting on one more lot of linear rails (1390mm long for X axis) and the ballscrews and then I can start the build in earnest!

[Wobblycogs]

The shed's looking good as are the rails. I got stung for fifty quid and a two and half week delay with the rails I imported, I obviously don't have any luck at the moment.

[njhussey]

I was lucky, not complaining as I've always had the fee (which I don't mind as it's the law) on imported stuff so a bit of a change. You got your steppers and drivers yet? Which ones you going for? I was thinking of the Leadshine AM882 from Zapp and the Nema 23 3.1Nm stepper motors from cnc4you...plus looking at making my own (gulp...) PSU.

[Wobblycogs]

Erm, snap on all items (even where I was planning on buying them) . From what I've read they seem like a good combination of parts. I'd probably have made some purchases by now but I've been looking into getting one of these PMDX-107 for spindle control. I doubt I'll set up spindle control straight away but if I can order the part at the same time as the BOB that would be good. I take it you've seen this thread about building a PSU?

[njhussey]

Sounds like yours and my machines electrics will be the same I was going to look into the closed loop system but for what I'll be using it for I couldn't really justify the extra. I've also been looking at that as I was wondering if I could use the PWM output to control my RC Speed Controller which will be powering my spindle. Sounds like some combined purchases could be made here!!! Yes seen a few threads, I'm fine mechanically but anything electrical leaves me cold...

[Wobblycogs]

I own a soldering iron and I even switched it on once...

I'm actually quite interested in the electronics I just don't really have time to learn as much about it as I would like. I think I'll probably build the PSU as it's only a dozen or so components, more complicated magic will have to wait.

If you want to get together for a brain storm on the electrics or to put together a combined purchase just give me a shout.

[njhussey]

More than happy to get together for a brainstorm on the electrics, would be good if we both have the same as then we can help each other out (seeing as we only live a couple of miles apart!) in case of problems. I'm definitely going to build my own PSU but will need to check from the experts on here that I'm getting the correct parts.


Will give you a shout when it's time to get the electrics, in turn give me a shout if you're ready before me to get them as I'm going to concentrate on the build of the frame first as the electrical bits have a 12 month warranty and I'll want that to be as near as possible to the end of the build...