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Fórum » Only in English » Technologies » CO2 Lasers. (Anything relating to CO2 Lasers can be discussed here.)
CO2 Lasers.
Muk Dátum/Date: Szombat, 2013-06-22, 14:55 | Üzenet/Post # 181
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Jerry, here's a link that might help you.

http://www.rabbitlaserusa.com/manuals/beamalignment.html
 
Honk Dátum/Date: Szombat, 2013-06-22, 15:55 | Üzenet/Post # 182
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TweakIt
Thanks, I have succeded in getting the invisable light to come out and burn a dot on a piece of plywood. Now all I have to do is get Mach3 to do it. I have a feeling I am going to end up being a big pain in the laser.
Hope you'll be able to withstand some pestering ( Which is what I do best ).
Thanks again Jerry
 
Honk Dátum/Date: Szombat, 2013-06-22, 20:31 | Üzenet/Post # 183
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Ha Ha Ha I got it going!!! Now what do I do? Quick YouTube Video of it doing something.
http://youtu.be/-vV89Qk....turn-1}
PEP4 Laser works good, now a need to figure out how to work it. This came out to dark. But it did come out!!
Thank all for all your help.
Jerry

Csatolások/Attachments: 4280684.jpg(107Kb) · 2311290.jpg(35Kb)
 
tweakie Dátum/Date: Vasárnap, 2013-06-23, 06:30 | Üzenet/Post # 184
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Hi Jerry,

That's certainly different biggrin but as you say it's a result.

A bit of experimentation, a bit of practice and you will be producing stunning stuff in no time - I am pleased you have got it all working - you are well on your way now. ok

Tweakie.


Success consists of going from failure to failure without loss of enthusiasm.
 
Honk Dátum/Date: Vasárnap, 2013-06-23, 23:13 | Üzenet/Post # 185
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Here it is!  all done except something to help me open the door. Some kind of struts or something.

Tweakit Do you have a small G code file that will run on the laser. That I might use to get me started for the settings with PEP4. Right now I'm just stumbling all around.
Thanks
Jerry
Csatolások/Attachments: 4908082.jpg(67Kb)
 
picengraver Dátum/Date: Hétfő, 2013-06-24, 02:12 | Üzenet/Post # 186
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Jerry,
I am hesitant to offer advice since I have no experience with a CO2 laser, but have you tried dithering an image and running it in TTL mode?

John


I paint with a blue light beam.

Az üzenetet módosította/Modified by picengraver - Hétfő, 2013-06-24, 02:12
 
tweakie Dátum/Date: Hétfő, 2013-06-24, 02:25 | Üzenet/Post # 187
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Hi Jerry,

As John suggested probably the best starting place is a dithered image.

This is one of the test files I was using last year.
Hope this helps.

Tweakie.
Csatolások/Attachments: eyes1.rar(39Kb)


Success consists of going from failure to failure without loss of enthusiasm.
 
Muk Dátum/Date: Hétfő, 2013-06-24, 02:59 | Üzenet/Post # 188
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Honk, what software are you using? I have a few 3D puzzles, finished vectors for various tests on glass, wood, etc.

Let me know and I'll send you a handful of things to play with, but I just want to know what you have so I send the appropriate files.
 
Dave Dátum/Date: Hétfő, 2013-06-24, 03:05 | Üzenet/Post # 189
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This co2 laser is also excellent for scrollsaw type projects. It's lots more accurate and way quicker than I am with the saw (but I guess that doesn't say much).  biggrin Each of the 1/4" thick layers glued up to make this bowl were concentric as cut out with each turned 1/2 of a tooth to glue to the preceeding layers. Took about 8 minutes to cut out a set in 1 pass, lots longer to glue them up.
Dave

Csatolások/Attachments: 4595241.jpg(55Kb)


Az üzenetet módosította/Modified by Dave - Hétfő, 2013-06-24, 03:08
 
Dave Dátum/Date: Hétfő, 2013-06-24, 03:14 | Üzenet/Post # 190
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Oops, forgot to include the other picture...
Dave

Csatolások/Attachments: 9126385.jpg(38Kb)


Az üzenetet módosította/Modified by Dave - Hétfő, 2013-06-24, 03:14
 
Honk Dátum/Date: Hétfő, 2013-06-24, 15:08 | Üzenet/Post # 191
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Muk
I'm using BobCad, PhotoVCarve, PEP4, Paint Shop Pro X5 With Mach3 and I am just starting to try to run the laser 40W co2. My main problem right now is to get BobCad to work with Mach3 set up and post processor.  BobCad was not able to direct me so I am stumbling around in the dark.
Thanks Jerry
 
Honk Dátum/Date: Hétfő, 2013-06-24, 21:48 | Üzenet/Post # 192
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Tweakit
Couple of problems but I am excited!
1: The laser starts as soon as I start a program. (IN Mach3) It is like it is on on even before there is a command. If I have the key off untill it is into the program it will work good. (Do I need something changed in Mach3 or the post processor.)
2: In PEP4 if I want it to burn a rectangle around my part it will burn a big hole at X, Y, Zero (0) and in three passes it is real big.
3: On the eye file you sent me it has a E1P1 and E1P0 ??? I assume it starts and stops the laser. In PEP4 it uses C0.000and C-0.0254. Is this the same?
4: In my photo it started real good then it started skipping lines in X and Y. I am at 500 inches per min. maybe I should run slower??? Is this because the G61 and G64 are checked. Exact stop constant velocity and I am to fast for my motors???
Thats more than a couple I know but I will thank you Twice.
Jerry



---------------------------------------------
Dave
I like your pictures! Can you say the amount of Watts of your laser. Or how long did it taks to burn through 1/4 in pylwood? I am only able to make black lines with 40 W (see above).
Thanks
Jerry
Csatolások/Attachments: 1351879.jpg(69Kb)


Az üzenetet módosította/Modified by Honk - Hétfő, 2013-06-24, 21:52
 
Dave Dátum/Date: Hétfő, 2013-06-24, 23:36 | Üzenet/Post # 193
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Hi Jerry,
The FSE laser tube is supposed to be 45 watts at full power. The cutouts were done in vector mode with one pass at 95% power and 20% speed (way faster than I can cut on the scrollsaw with any accuracy). Full speed shows 17.9 inches/second in raster mode. I don't see where it displays the actual speed in vector mode in inches/second though. I'm still getting used to their software and coreldraw x6.
I'll also point out that this thing doesn't use mach3. It has it's own processor board that's connected to the pc network card with an ethernet cable. No gcode, just print to it. The driver for it shows up with the printers in the windows control panel. No leadscrews, just cog belts driven by pulleys on two small stepper motors.
 
As far as raster images go, the results in detail far surpass anything I could get with mach3 on my leadscrew driven cnc and the laser diode. I'm pretty sure that mach's CV stuff was involved in the blurry images I was seeing, especially at higher feedrates.
Dave


Az üzenetet módosította/Modified by Dave - Hétfő, 2013-06-24, 23:53
 
Muk Dátum/Date: Kedd, 2013-06-25, 00:32 | Üzenet/Post # 194
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Hey Jerry,

How about you message me with your email in PM and I'll send you some stuff to get you moving. Sadly I use CamBam and not BobCad otherwise I could get you setup and running about an hour without a second thought :/

But I do have some stuff that should help you out. I can make you some stuff via Gcode to test with in the mean time.

The laser coming on first thing is usually 1 of 2 things. Either your break out board is leaving the 'on' signal when it first turns on...or the vice-versa and in Mach 3, your laser is set to be the opposite of what the BOB starts out with. Example: If your set to "low" then if your board starts up with no signal to it, the laser will start with it on. So switch to "high" and it'll solve the problem. Or do inverse.
 
picengraver Dátum/Date: Kedd, 2013-06-25, 00:55 | Üzenet/Post # 195
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Idézet (Honk)
2: In PEP4 if I want it to burn a rectangle around my part it will burn a big hole at X, Y, Zero (0) and in three passes it is real big.
Jerry,
I will look at the PEP source code to see if I can eliminate the excessive corner burn.  Thanks for mentioning this.
John


I paint with a blue light beam.
 
Honk Dátum/Date: Kedd, 2013-06-25, 01:07 | Üzenet/Post # 196
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John
Thanks but waite a bit, I might have something going on with Mach3. There in bed right now so I won't know till tomorrow. ( For some reason my torch starts out on before cycle start and burns a big hole and every time it hits the burn mark it gets bigger)
Jerry
 
Muk Dátum/Date: Kedd, 2013-06-25, 02:26 | Üzenet/Post # 197
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Honk, post a pic of your Mach 3 config. That'll help with the settings.

The ports & settings specifically.
 
Honk Dátum/Date: Kedd, 2013-06-25, 02:31 | Üzenet/Post # 198
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Muk
I did reverse both direction and step on C and nothing changed. I also tried them each one , It's still broke. I thought it was skipping lines but I seen it just move up a couple of lines. It just moved up from one end of X to the other at a angle. That's impossable!! Now what do I do???
but don't send anything untill I get this thing to work.

Thanks Jerry

Csatolások/Attachments: 3542874.jpg(66Kb)


Az üzenetet módosította/Modified by Honk - Kedd, 2013-06-25, 03:37
 
Honk Dátum/Date: Kedd, 2013-06-25, 03:39 | Üzenet/Post # 199
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Thanks
Jerry
Csatolások/Attachments: 2619826.jpg(130Kb) · 1563489.jpg(135Kb)
 
Honk Dátum/Date: Kedd, 2013-06-25, 22:45 | Üzenet/Post # 200
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I think I have one of my problems identified. I ran the program with the laser off using an ink pin and it did not skip a line. There is some kind of interferance with the laser and my stepper motors. I have the laser power supply mounted in the box at this location. Would this be a possable problem? What can be done that might help me?
Also when I am running in TTL low the laser will fire before the start button is pushed I have been using the key to controll at this point. I was wondering what could be done?
Thanks Jerry
Csatolások/Attachments: 2987603.jpg(87Kb)
 
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