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

[njhussey]

Dean, the plan is to put a second floor of 18mm ply screwed to it and then bolt the machine through the floor and into the base which has 12 4" x 4" posts concreted into the ground. I'll insulate the walls with Celotex and skin it with 12mm ply. This will be screwed to the walls and braced round the top and bottom. Its only a temporary shed/workshop until we move so hopefully it won't shake itself to bits before then!!

[JAZZCNC]

Dean, the plan is to put a second floor of 18mm ply screwed to it and then bolt the machine through the floor and into the base which has 12 4" x 4" posts concreted into the ground.

Ah Ok that sounds a good plan I'd hate for you to tip your new shed over on first job. . Lol

Michael Marino has his machine in similar sized shed which is super organised with shelf's etc and I remember when took it up to him saying about machine shaking shed and stuff falling off. . . . He'd only had crappy merchant dice snail before this machine and think he thought I was joking.!! . . . He soon realised I wasn't when it tried to walk off the bench and out the door. . . Lol . . . . . And that was at half it's capable speed.!!

That machine and gantry was half the size and weight yours will be.!!!!! . . . . Fasten it well.. .Lol

[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...