Messages

4081

General Mach Discussion / Re: Hi, Where can i get the wiring diagram to the board of a CNC 3040?

« on: May 02, 2014, 02:09:16 AM »

Hi Finland,

I can't recommend anyone in particular but I think you should buy from those that offer support for their products and have a known track record.
Perhaps someone like CNC4PC http://www.cnc4pc.com/Store/osc/index.php may have a suitable product.

Tweakie.

4082

General Mach Discussion / Re: Mach3 problems

« on: May 01, 2014, 02:47:09 AM »

Hi Craig,

I am pleased that it is all resolved. 

Thanks for coming back with the answer.

Tweakie.

4083

General Mach Discussion / Re: controller type for SolidCAM

« on: April 30, 2014, 03:47:17 AM »

Hi everyone,

I'm looking for a post processor for solidcam,

I've a mill-turn    (4 axes)

Any Help will be very very appreciated !

Thanks

As already said the standard Fanuc post should work fine. If you still have problems then perhaps contact SolidCAM support and ask their advice.

Tweakie.

4084

General Mach Discussion / Re: Epilog Summit Laser Retrofit

« on: April 30, 2014, 01:48:31 AM »

Sounds like a great idea, I think the Arduinio is ideally suited to the task.

Tweakie.

4085

General Mach Discussion / Re: Epilog Summit Laser Retrofit

« on: April 28, 2014, 12:03:15 PM »

Sorry, the PCB layout for the tickle pulse generator may take me some time to find (it was a long time ago and it is on my PC somewhere) but the circuit is simple enough so you should not have too much trouble to lay out your own PCB.

The problem with using the Mach3 PWM is that the tube's tickle pulse requirements are a PRF of 5kHz with a pulse width of between 1uS and 1.5uS. If the pulse width is too great then the tube will lase and this defeats the object of the exercise. There is probably a way this could be achieved from Mach3 by using the Charge Pump (Laser Standby) but I have not fully investigated this possibility.

Tweakie.

4086

General Mach Discussion / Re: Epilog Summit Laser Retrofit

« on: April 28, 2014, 11:10:53 AM »

I wasn't suggesting you build the whole controller, just the tickle pulse generator. 

However, a lot of people have built my laser controller now and it seems to be successful - I certainly don't have any problems with it.
My PIC programmer is years old and I can't even remember what type it is but I think any PIC programmer would be OK as long as it is capable of HS (20Mhz) mode.

Unfortunately PCB's cannot be laser cut and mine was intended to be isolation routed. If you were to acid etch the PCB please remember to leave all the background copper as this forms an important GND plane.

My recommendation, if you decide to build the controller, is that you do get a complete PIC programming package which will allow you to change the software, if necessary, to suite your particular current or future needs. It's all good fun as long as you can find some way of justifying the expense. 

Tweakie.

4087

General Mach Discussion / Re: Epilog Summit Laser Retrofit

« on: April 28, 2014, 04:04:28 AM »

Will a simple G1 move cut a line if it's prefaced by the M11P1 commands?

Yes it will - but you will also have to have a G0 or G1 movement following the M10P1 to turn the laser off at the end of the line.  

With regard to the tickle pulse I have concluded it is better to use a separate tickle pulse generator (I have described a typical circuit here http://www.cooperman.talktalk.net/files/28.htm).

Hope this helps,

Tweakie.

4088

General Mach Discussion / Re: G81 Canned cycle problem

« on: April 28, 2014, 02:52:45 AM »

A very interesting suggestion Acrodoc - thanks for posting what could be a workable solution. 

Tweakie.

4089

General Mach Discussion / Re: "run from here" problem

« on: April 27, 2014, 12:03:23 PM »

Ahh - I think I understand (perhaps) 

Thanks for the explanation Ian.

Tweakie.

4090

General Mach Discussion / Re: Limit Switches

« on: April 27, 2014, 07:40:59 AM »

Hi Nick,

Mach3 will back off until the switch de-activates.

You are probably, dependant on the quality of your switches, seeing 'switch bounce' which is confusing the issue. This problem can usually be resolved by fitting miniature 0.1uF capacitors between each switch input and GND at your breakout board (or where you have connected the switch wiring to your controller). A secondary solution is to increase the Debounce Interval in Config / General Config.

Hope this helps,

Tweakie.