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The problem ended up being a bad cable between the power distribution board and the I/O board at connector p56, probing for 115V through the back of the connector showed good and that's the only way...

Cool! My machine is one of the first gen I believe, it's a 95. Can you e-mail them to [email protected]?

Very much appreciated, thank you both! I'm used to working on Hass machines here lately,...

I have a EZpath lathe at work that's not under power, I guess the last time someone tried to use it they wired it to 480 without retapping the transformer properly.

I think I have the know how to...

I have a 2000 SL30 with quite a few problems, the 115V for triggering solenoids and relays is not passing through the I/O board like it is supposed to.

I have measured 3 phase 115V at P56 at the...

I know DTR as well, and would certainly recommend buying laser parts from him. Pretty good guy! He sells things cheaper on another site outside ebay, if you'd like me to put you in touch with him...

It's really rather easy. All you need is a floor jack, two 2x4's and 4 adjustable jack stands or even big blocks.

Pick one end of the laser up with the floor jack. Put two of the jackstands on the...

Your problem was using that cheap chinese diaphram air pump. It is completely and totally useless, the volume of air it puts out is nowhere near enough for laser cutting.

Remember, a laser cuts...

A true waterjet or abrasivejet uses a carbide nozzle and a "jewel" to focus the cut stream. Even with a 0 degree pressure washer nozzle, I doubt you'd get decent results. The taper would be...

I know this is a late, late reply, but I wanted to say thank you to baksiidaa for that link. That was exactly what I was looking for!

My laser is only 80W, but with the modifications I've done to...

There's quite a bit in a laser that would make it do that. Some pictures might help tell what's going on.

Is it only in one direction or is it in both axes? Does it also drift in engravings?
...

Concrete is by far the best to have the laser on, if your machine is up on casters the clunks from the grout in the tile might be messing your alignment up if you move it a lot. I have heard of guys...

Are you cutting things with a laser, or are you trying to measure things with a hand held laser?

If it's the latter, you are in the wrong place. I'd go to the metrology forum on the practical...

My full spectrum 80W pro has pretty decent mirror mounts. I haven't needed to play with them in at least a month, less time if I only use the upper square foot or so of the bed. I don't think you...

For what it's worth, my 80W machine just barely cuts through 3/4" plywood in one pass. That's with a completely custom nozzle and air assist, plus a long length lens. It's slow, as in 10mm/s slow...

The tube is bigger, it takes more power to get the tube started. It may work, but I doubt it.

The problem is the starting voltage needed, it's a lot higher than the running voltage. The smaller...

You'll never get a laser table true enough to see the difference in spot size between a 2.5 and 4" lens anyway. Nor will you ever hold a perfect enough focus to keep the top of the material in the...

That calculator assumes your laser has a perfect Gaussian tem00 output mode, something a co2 tube laser never has.

So since the spot is never truly round, it can never be focused perfectly round....

A normal 2.5" lens will never cut as deep as a 4" or 5" lens. Even if it could "cut" it would leave such a horribly tapered finish that it would be entirely useless.

The fact that a longer lens...

Expanding the beam reduces the amount of divergence, less divergence means less spot size change across the table when using flying mirror setups. You can always focus back to the small spot size at...

I don't follow, you are saying that you don't pressurize the lens/nozzle and just run pressurized air right next to the nozzle outlet? It seems like the air wouldn't actually be on the cut if the...

A vinyl cutter would do you sooo much better, plus they are only ~$300 on ebay, cheaper than a laser cutter.

Any other material will melt near the cut with a laser, you'll have a rather large...

That would be more than adequate, you'll be able to run much less of a duty cycle on that compressor than one with a small tank and low SCFM. That's always a good thing! Less noise, and less wear on...

Figured I'd post some pictures...

http://i879.photobucket.com/albums/ab357/pontiacg5_2010/20120502_090727.jpg?t=1345728557

The setup. Guess I only used one particulate filter, could have sworn...

Sorry, but the compressor that comes with a Gweike machine is a complete and total piece of crap. Mine made the most annoying popping sounds, plus it didn't put out hardly any pressure. The air it...

I'm not sure exactly what it is you are trying to do, but if you need a nice round laser dot you will need a lot more than a beam expander.

I'm assuming you are wanting to use the infamous 1W 445...

Aerosol can Cermark, so convenient but a major PITA once it gets close to empty. It seems that it begins spraying thicker the more you use it and it always starts to clog before you get to use all...

I have a brand new HPR260XD 260A HD plasma cutter, it's attached to a 5x10' waterjet table (plasma/waterjet combo)

The guys I bought the machine from are completely useless and I've been left...

Who taught you how to post on a forum? Why would you make 4 separate threads for one issue? How do you expect to get anything at all solved that way?

That laser is on a whole 'nother level compared to a Chinese 150W laser. I wouldn't buy a Chinese one expecting it to preform as well as that does.

Also, I didn't see any feedrates, but it looks...

You are right, the laser will burn the edges of the wood. With the increased air pressure and volume I am using for my air assist I think I have the black markings under control. What little is left...