Messages

6691

General Mach Discussion / Re: Spindle On Off Setup No 5VDC at relay.

« on: April 27, 2011, 01:20:39 PM »

You need a driver circuit of some kind to drive the relay. The 5 volt that you are measuring is the voltage from the computer LPT port and that only sources a couple of milliamps and is not enough to drive a relay on it's own.

You could use an opto isolator, the output side would need a separate 5 volt supply to power the relay.
You could use a TTL gate, again a 5 volt supply would be necessary.
You could use a different BoB which already has the relay and drive circuit.

There are many options.

Tweakie. 

6692

Share Your GCode / Re: Hiking trail symbol g-code needed

« on: April 27, 2011, 12:48:53 PM »

I need more details of your requirement.

Do you want to route out the white part of just the outline ?
How big and what diameter tool also how deep ?

Tweakie.

6693

General Mach Discussion / Re: M11/10 and E1p1/0 problems pls help

« on: April 27, 2011, 12:32:35 PM »

Hi Chris,

I don't think there is any documentation on the plugin (perhaps we should write something  )
40uS should be checked.
Digital trigger in ports and pins should be set for the port and pin which is connected to your laser trigger and active high/low selected accordingly (this pin must not be enabled anywhere else in the setup).
That should do it.

Tweakie.

6694

General Mach Discussion / Re: Hood.....where is he?

« on: April 27, 2011, 06:53:08 AM »

Wishing you a speedy recovery Hood.

Tweakie.

6695

General Mach Discussion / Re: Reprap 3D printing machines

« on: April 27, 2011, 03:54:43 AM »

A link to someone using Mach3 for 3d printing.

http://www.thingiverse.com/thing:5233

When I have time!!!!!!!!!!!!!!!!!.

Mike

Nice find Mike thanks for sharing.

More reading for me to do. 

Tweakie.

6696

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: April 27, 2011, 01:48:46 AM »

Thanks Terry, who knows, I could be stalling out at the craft fairs later on in the year. 

Tweakie.

6697

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: April 26, 2011, 12:46:35 PM »

That's about it. 

( I haven't shown all the leftover parts that are thrown away).

Tweakie.

6698

General Mach Discussion / Re: Reprap 3D printing machines

« on: April 26, 2011, 12:28:36 PM »

You make it all sound so easy, go on and build one - after all, how hard can it be ?

Tweakie.

6699

General Mach Discussion / Re: halfmoon instead of circle

« on: April 26, 2011, 09:18:42 AM »

Well, to state the obvious, have you checked that there are no tight spots or binding of the axis travel or cables / hoses snagging anywhere ?
Perhaps check your LPT parallel port cable for continuity and all other machine wiring for short / open circuit including any soldered joints and connectors. Major job checking everything but I think it has to be done.

Tweakie.

6700

Show"N"Tell ( Your Machines) / Re: The Laser Project.

« on: April 26, 2011, 08:52:38 AM »

My Boss took an early lunch today and while the cat's away..........

It took two attempts to get the tool radius offset correct but once I got it right the parts do fit pretty well.

Tweakie.