Aluminium CNC log.

[jcb121]

Has finally got all my stuff!



Why do i have to go on holiday now!!

I also picked up some 1104 three bond instead of the 1194,

1194 is safer to use as it doesn't use Lead. but i thought, I ride a 2t, I'll live on the edge for a bit :P

Now, all I need is some electrical wire, a Crap load of Aluminium and I'll be done.

I really need some spindle mounts, Nema 23 Mounts and Ball screw mounts though......

[Jonathan]

I really need some spindle mounts, Nema 23 Mounts and Ball screw mounts though......

Sounds like a job for me :whistling: Have you seen the ones of all those I've posted recently?

[luke11cnc]

jess
only one ball screw on your x-axis??

James

[jcb121]

yes, I have a sliding Bed design so I only need one, not only that, but the entire cnc will be more rigid and make things better,

Jess.

[Jonathan]

yes, I have a sliding Bed design so I only need one, not only that, but the entire cnc will be more rigid and make things better,

A sliding bed does not mean you only need one ballscrew to drive it. When the cutter is at either limit of the Y-axis travel and cutting parallel to the X-axis the cutting force will create a significant torque on the bed causing it to deflect. How much it deflects depends on the spacing of the bearings supporting the bed, the distance between them and of course the cutting force. Two ballscrews completely eliminates this problem. It's like trying to go round a corner fast in a Reliant Robin...it does work but not as well.

[jcb121]

I'm ordering a cheap mouse and a Serial cable today.

what sort of cables do I need for hooking up the breakout board, PSU and Drivers etc?

[Jonathan]

I'm ordering a cheap mouse and a Serial cable today.

Mice are handy, but what's the serial cable for? Did you mean parallel?

what sort of cables do I need for hooking up the breakout board, PSU and Drivers etc?

For the PSU to driver you'll want something that'll conduct the required current without a big voltage drop. Probably 1.5mm^2. Some people use shielded...I don't think it's required in most cases.
For the breakout board to drivers standard 7/0.2 wire is fine (or anything you have lying around) as it's only a signal.
Drivers to steppers generally CY 4-core (which is shielded), 1.5mm^2. You need minimum 1mm^2 from the VFD to spindle, so the same as you use for the steppers will be fine.

[jcb121]

maplins it is then.

parallel, yes I did mean that!

Thanks.

[Jonathan]

maplins it is then.

Noooooooooooooooo.... they charge silly money and probably wont have the cable for steppers anyway. eBay/Rapid electronics/Farnell is your friend. I've got plenty of 7/0.2 wire (all the colours) and possibly the rest depending on how much you need?

[jcb121]

Thanks John, I may just take you up on that!

Shouldn't need too much. I was just thinking about testing my electronic bits as I'm not even sure they work! I hope they do....

when putting them in the machine I'll order the cables.