Messages

281

Tangent Corner / CO2 Laser Mirror Allignment.

« on: October 19, 2018, 07:58:28 AM »

Mirror adjustment / alignment for a CO2 laser is quite a tricky process. It usually involves placing a paper or tape target over successive mirrors and adjusting the previous mirror to centre the beam on the target – it is basically a trial and error process whilst test firing the laser.
This photo, of a slight mishap during a test fire, was posted on another forum and the owner of the finger commented: “it hurt, in fact it hurt quite a lot”.

Don’t we just have to be so careful when operating any of our CNC controlled equipment ?   

Tweakie.

282

General Mach Discussion / Re: Drill stuck at top of Z-axis

« on: October 19, 2018, 02:43:00 AM »

Opinions differ on this one but my preference was to fit an ‘override’ push button across my EStop  (Limit Switch) circuit. Pressing and holding the button allows me to jogg-off the triggered limit switch. Once the axis has cleared the limit switch and the button is released everything returns to normal.

283

PoKeys / Re: Pokeys, mach4 no go?!

« on: October 18, 2018, 01:20:45 AM »

 

284

General Mach Discussion / Re: Help Can't get steppers to move!!!

« on: October 17, 2018, 07:46:13 AM »

Hi Friends,

Totally new to DIY-CNC and need your help and support to run my single motor in X axis (Pul/Dir).

I bought Rhino 10kgcm Nema 23 motor with DM542 stepper driver and trying to drive with 24VDC 14.5Amps power supply and 5 axis optical isolated board from Rrmin (Chinese make).

I did the connections as per general guidelines provided on internet, Everything seems fine but motor is not running.

Please support to figure out what is wrong and how to correct it

Maverick

Which Chinese controller board do you have (make and model) ?

Tweakie.

285

General Mach Discussion / Re: Error 9991 Mach3 Windows10

« on: October 17, 2018, 01:24:58 AM »

I think your windows updates are the problem. This thread refers;  http://www.machsupport.com/forum/index.php/topic,37291.0.html

Tweakie.

286

General Mach Discussion / Re: M5 has problems

« on: October 17, 2018, 01:22:14 AM »

It's M3 / M4 which starts the spindle M5 stops the spindle.

Tweakie.

287

General Mach Discussion / Re: A bad case of stupid

« on: October 15, 2018, 08:32:07 AM »

I think we have all been there but that is certainly good advice Garry - always stick a wiring diagram to the inside of the cabinet door. 

Tweakie.

288

General Mach Discussion / Re: Has anyone experince running a CO2 laser cutter with an AKZ250 Mot. Cont. board?

« on: October 15, 2018, 01:55:24 AM »

Hi Keith,

Lasers require a high switching speed (ON/OFF) to avoid creating ‘dots’ at the start and end of engraved lines etc. To this end the command set M11Px / M10Px was specially created for Mach3 and these commands switch the designated laser trigger pin at the exact moment of axis movement and totally avoid the problem.
Unfortunately the AKZ250 does not support these commands so you are limited to using a spare axis direction pin for laser switching. This is not difficult to achieve but overall you may find it a whole lot easier to switch to a supported motion controller (ESS perhaps) and use the M11Px / M10Px command set. I have explained the switching requirement in a bit more detail here;  http://www.tweakie.byethost10.com/27_files/Page652.htm

Hope this helps,

Tweakie.

289

Tutorials / Programming with Gcode.

« on: October 14, 2018, 06:17:21 AM »

Here is an excellent tutorial / guide to Programming with Gcode thanks to  Bob Warfield and CNC Cookbook.

https://www.cnccookbook.com/cnc-programming-g-code/

Tweakie.

290

General Mach Discussion / Re: HELP!! Anti-dive system Problem Plasma.

« on: October 12, 2018, 07:37:15 AM »

Hi Vitamin,

Plasma is not my thing so I have no suggestions but I am sorry you have not had a reply from other members here who may know the answer.
Perhaps they may now come to your assistance 

Tweakie.