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I personally wouldn't do it that way , I just marked out the square on some plywood at low power setting, you end up with a thin line that you can measure. If you are measuring the cut, then you...

I would try again with say a 400 mm square , measure it and work out the percentage differential and then change the step setting accordingly - a 12 mm square is tiny when trying to work out the step...

It should come right with the step settings, I assume you are marking the biggest square you can. How far out is it?

Setting the step settings should fix the problem. I dont think there is a particular setting for the machine - all are slightly different in some manner.
Can you tell us what stepper drives you...

I have had a similar issue with a new machine I bought - it drifted in both axis and gave me oval circles in the engrave mode. I eventually traced it down to the stepper drivers which I replaced - I...

Thanks for the reply, when my unit does it , it is both drives. I will keep an eye on it. Its winter here in NZ so it is not exactly hot. I take on board you comment about an overheating component ,...

Now this is an interesting question. I have a similar problem with my 4 year old machine - it has always done it - most of the work I do is laser cutting Balsa and ply. As you said, you can hear it...

Can I suggest that you disconnect the cooling system from the tube and see if the pump will circulate water. I had this issue on my machine some years ago when I ran it for about a year without...

Looking at the photo, it suggestes that the machineX and Y rails are not square to each other?, If you get a piece of mdf board and get the machine to mark out as bigger rectangle as you can on the...

I read this a while ago with interest and I wondered if instead of a hole saw, it might be possible to waterjet cut them with a bit more accuracy and less clean up. Covering them with tape would...

Yes , that sounds about right - as I say, I am not at home in front of my machine
I ended up with a different figure on the x and Y axis.
You must check that it lines up with the grid on the 5.3...

Are you saying the piece you cut is slightly larger. If it is then do what I did
I have a 900 x 600 laser - I drew a 500 x 800 rectangle (just some corner reference marks) - I checked that it...

I had a similar problem when I was cutting and engraving some name tags (I was only changing the engraved name in Lasercut 5.0) and it would not over write the engraving - I overcame it by making a...

Much the same experience - After just using tap water for a year, getting algae and then a calcified deposit in the cooling system at the alumininum fitting to the point where it blocked the flow....

Yes, it is a 3" lens - I bought it as an after market item from EC Laser in China - the focal length jig I made is 79 mm (as opposed to 54 for a 2"lens)

Aussiemate

I have an 80watt laser and I can assure you that it will not cut 9 mm ply - with the standard lens - it will just cut 7mm ply. With a 3" lens it will cut the 6 mm ply reasonably easily....

No its not a windows problem - We are both using XP - its a chinese software issue - It took a fair bit of time to try and get it to load up but once I found the correct link it was away

If you go to the Device manager on you PC you should have a Stepservo device along with a MPC03 device off that. Right click the MPC03 device and update the driver - I think you have to have them on...

If you are cutting and engraving using a memory stick , then I dont see how it could be the controller. I will have a look tonight and see where I had to put the drivers for it to be recognised.

I had to reload the print drivers to get the machine to connect through the USB cable - It has to be connected and then go through the "new hardware found" process- It took me a while to get it to...

whatever you put in as a barrier , make sure it is not reflective - a pieces of sacrificial wood will work - I have had the unfocused beam reflect back off the bottom of my table and off the mesh on...

I have this issue occasionally and I have yet to track the problem down. I am in the midst of a fairly big production run and am going to try a couple of things after speaking with a techo that i...

Can I suggest you check your program and make sure you havent accidently dropped the power setting to below the minimum operating level - I think mine will work down to about 10% power and not...

happy to be part of it - I have an 80 watt 900 machine now for about 18 months - has not done a huge anount of cutting but my work is primarily production cutting for a friends model business. Been a...

One of the things you should look closely at is the final mirror that sends the beam into the lens. If it is not well aligned and the beams goes through the lens it can veer off slightly thus...

Interesting thread - do you think this improves the performance of the machine - power change response/ tube power /tube life etc. I have the same alligator clip arrangement and did wonder about the...

When I first bought my machine it did exactly this - we traced the problem to a cracked tube (some thoughtful chinese individual thought he could fix it with some epoxy before it was sent) - we...

Thanks for the info, I have a bug killer in the coolant - out of curiosity how much did you water the antifreeze down ? - I can buy it straight from the auto supply shop ready to go?
Many Thanks

It was white when it dried out - I think I will replace the water with Glycol (antifreeze) which has an anti corrossion component in it

I have a 80w 9060 laser and recently the water flow alarm has been coming on intermitently. I checked the flow from the pump and this was fine but there seemed to be little water returning back to...