New Machine Build- New CNC

[Jens H]

I have used and uses a step-four mill for manufacturing Guitars ( www.jens-h.dk)

It was beginning to be to little and slow for my needs, and there was also some issues in stability.
I desided to build my own, designed to my needs.
Data:
X=1050mm;Y=450mm;z=150mm (can handle the outline of a guitar.)
Ball guides and ball spindels.
Feed > 5000 mm/min.
Servo motors for loops feadback (I have destroyed som guitarbodys because of losing steps) nema23 DCservo.

Here is some pictures.
The construction drawing












I have run the machine with the motors, and the axis work well up to 7000mm/min. They are very strong. I have some problems with the limits switch, but the disapear when I change cable to screened cable.
Know I only have to do the final alignments, and get to know the software.

[Med-Pac]

Very nice build. Any plans on finish? Anodizing would really look cool! After you get everything dialed in, a video is a must!

Mike

[Northboy]

Very nice work.

That is going to be a very solid and pretty machine!


Northboy

[BobF]

You may want to add a .01 cap to the line for the switches. goes between signal and ground. This helped on mine. I had shielded cable, but still had problems with false triggers.

[Kammo1]

Hey Jens that is a beautiful machine you have there, I too am building my MDF homebrew CNC for guitars and various other stuff. I have seen your site and must say you have the CNC off to a T amazing work. After building by hand for the last 25 years and the decline of the economy I have come to the conclusion people will not pay for handmade pieces anymore so to reduce my time and labour costs CNC is the way to go, I never thought I would say that but its true. Inlay work will be a breeze and all the hard roughing and carving by hand will be all CNC it just makes sense. I would like to build my next one from aluminum and will follow your thread as its a true inspiration well done my man! Laz.

[jalessi]

Jen,

Are the long aluminum side rails solid or are they tubing or C channel?

Looks very sturdy whatever it is!




Jeff...

[Jens H]

Originally Posted by jalessi Jen, Are the long aluminum side rails solid or are they tubing or C channel? Looks very sturdy whatever it is! Jeff...

It's Tubes. 150x50-140x40 (5mm wall). Extruded and supricely accurate. I putt a alupart of 140x40x20 in the tube with 2 mm hanging out, and then attach the end plate to it. The endplate then have a 2 mm deep pocket of 140x40, so the distance and allignment between the tubes are very accurate. I havn'nt pictures of it.

Here are som new pic.

[asuratman]

Hello Jens H,
Good day. if I am not wrong, I saw on your CAD drawing that u will drive x axis with 2 motor. But in one of your picture x drive is in the center. Which one is right? If u drive x axis with 2 motor, is it OK with control.

[Jens H]

@asuratman: No, I only have one motor in center, and timing belt to 2 spindles.

I have a little youtube with the router in action. It is recorded on my camara, with the other hand on the Emergency stop. (its the first guitarbody I made on the machine.

YouTube - CNC-guitar

YouTube - CNC-guitar