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Air Scribe for plasma table.

Questions, information, project pics and more relating to plate markers, engravers, and scribes.
Axlworks
Posts: 4
Joined: Sat Apr 07, 2018 12:11 am

Air Scribe for plasma table.

Postby Axlworks » Fri May 18, 2018 1:17 am

I hope this is the right forum. I was wondering if anyone’s heard or installed one of these on your tables? It seems like a good choice as it comes with all the parts. Wiring to the controller is the only thing keeping me from making the purchase. Thoughts?

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djreiswig
Posts: 270
Joined: Thu Nov 19, 2015 10:02 pm

Re: Air Scribe for plasma table.

Postby djreiswig » Fri May 18, 2018 10:29 pm

In my opinion that's a lot of money for a couple of regulators, an air valve, an air slide and some tubing & fittings. The additional information tab on their site says the air scribe is not included so you would have to buy that separately. If you look on this site (plasmaspider), you will find some pretty good directions on how to put your own air scribe together for a lot less money. If you look at the pictures for their ES Air Scribe, they have an air diagram that shows you how to plumb it. As far as the wiring to control a scribe, you just need a single output to turn on the air valve. You will also need to program some offsets in your CAM software to account for the offset from the torch to where the scribe is mounted.
2014 Bulltear (StarLab) 4x8
C&CNC EtherCut
Mach3, SheetCam, Draftsight
Hypertherm PM65
Oxy/Acetylene Flame Torch
Pneumatic Plate Marker, Ohmic, 10 inch Rotary Chuck (in progress)

Axlworks
Posts: 4
Joined: Sat Apr 07, 2018 12:11 am

Re: Air Scribe for plasma table.

Postby Axlworks » Mon May 21, 2018 10:00 pm

Very true. I already purchased the scribe on eBay for $60. I’m looking at slides and regulators now cause I’m all about saving a couple bucks. Plus making it yourself is always funner.

Thanks for the intel.

djreiswig
Posts: 270
Joined: Thu Nov 19, 2015 10:02 pm

Re: Air Scribe for plasma table.

Postby djreiswig » Mon May 21, 2018 10:11 pm

Check out this thread on what I figured out to control downpressure.
viewtopic.php?f=100&t=22927
The precision regulators are da bomb.
Also might want to consider setting up your scribe slide so it turns on and stays down and use the Z motor to raise and lower your scribe between moves. It seems to solve the start delay issue a lot of people are having.

Yeah, I agree, funner is better. :D
2014 Bulltear (StarLab) 4x8
C&CNC EtherCut
Mach3, SheetCam, Draftsight
Hypertherm PM65
Oxy/Acetylene Flame Torch
Pneumatic Plate Marker, Ohmic, 10 inch Rotary Chuck (in progress)

Axlworks
Posts: 4
Joined: Sat Apr 07, 2018 12:11 am

Re: Air Scribe for plasma table.

Postby Axlworks » Wed Jun 06, 2018 11:51 pm

So I’m getting all the parts for my air scribe this week and wondering how the wiring will work. From the scribe controller output to my CNC controller? Any pointers or related posts would be much appreciated.

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djreiswig
Posts: 270
Joined: Thu Nov 19, 2015 10:02 pm

Re: Air Scribe for plasma table.

Postby djreiswig » Thu Jun 07, 2018 8:42 am

Just wire both valves to the output relay so they both come on together. Not sure what controller or software you are using, so not much help there.
2014 Bulltear (StarLab) 4x8
C&CNC EtherCut
Mach3, SheetCam, Draftsight
Hypertherm PM65
Oxy/Acetylene Flame Torch
Pneumatic Plate Marker, Ohmic, 10 inch Rotary Chuck (in progress)

Axlworks
Posts: 4
Joined: Sat Apr 07, 2018 12:11 am

Re: Air Scribe for plasma table.

Postby Axlworks » Sun Jun 10, 2018 11:26 pm

Ok I gotcha. I’m using a 5-axis brekout board and running Inkscape, Sheetcam and Mach 3. Wondering if it’s possible to run the scribe output relay wires to the existing port on my breakout board?

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djreiswig
Posts: 270
Joined: Thu Nov 19, 2015 10:02 pm

Re: Air Scribe for plasma table.

Postby djreiswig » Mon Jun 11, 2018 12:40 am

It looks like you only have one relay on that board and there are wires in the connector for it circled in yellow.
file.jpeg

Assuming this is for your plasma. The connector you have circled in white is for a b-axis motor. I'm not really familiar with the board, but what I read in the data sheet doesn't look like that connector will control an air valve. I could be wrong.

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2014 Bulltear (StarLab) 4x8
C&CNC EtherCut
Mach3, SheetCam, Draftsight
Hypertherm PM65
Oxy/Acetylene Flame Torch
Pneumatic Plate Marker, Ohmic, 10 inch Rotary Chuck (in progress)

djreiswig
Posts: 270
Joined: Thu Nov 19, 2015 10:02 pm

Re: Air Scribe for plasma table.

Postby djreiswig » Mon Jun 11, 2018 1:08 am

It looks like there might be a way to connect a solid state relay to one of the axis pins. You would have to determine what port & pin to set in Mach. The info I found said to connect the ground on the relay to the 5v ground and the pin will provide the +5v. That's about all I can figure out. No guarantees, but good luck.
2014 Bulltear (StarLab) 4x8
C&CNC EtherCut
Mach3, SheetCam, Draftsight
Hypertherm PM65
Oxy/Acetylene Flame Torch
Pneumatic Plate Marker, Ohmic, 10 inch Rotary Chuck (in progress)


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