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After the X gantry collided with a workpiece, it was clear that my system was out of alignment. After poking around, I noticed that the back-left pulley on the left Y belt (the one connected to the...

Ugh... This could certainly be the case. We are in an apartment building, where adequate grounding is very difficult. I will see what can be done, and report back if it solves the issue. Thanks for...

Every so often, our laser cutter "messes up" so to speak - it wanders off of it's path and cuts a random line that isn't in the file - and then promptly returns to cutting the correct path. This...

Does anyone have experience regarding the lifespan of an inline exhaust fan when used for laser fumes? I just purchased an S&P TD-150S fan to replace the noisy blower that came stock with my Shenhui...

This is a great list. One thing I've been having trouble finding is colored acrylic in thicknesses less than 1/8th" - I'm looking for 1/16" or 0.060". Gavrieli seems like the best potential source so...

I know this has been discussed before, however the search function on this forum is flawed and doesn't allow for the words "3D" or "Three" or "D" to be searched for because they are too short and/or...

Cut a bunch of Delrin recently (1/16", 1/8", 3/16") with great results. (Took the same route as you - tried a bunch of ABS, nearly killed myself with the fumes, decided I needed an alternative).

I...

Forgive me if this is obvious.... but...

How do I make Laserworks cut my graphic at the location I place it on the laserworks page, instead of at whatever location the laser head currently is...

When installing my 90W RECI recently, I was very curious about this as well. Your theory about preventing arcing is interesting. I could see that being correct.

In other uses though, coils are...

Along similar lines, I wonder if a focused jet of pure oxygen would allow cutting thicker materials...

Thanks! I see now that the manual does say to set the lens concave-down... it had just arrived installed the wrong way. Most of the diagrams in the manual draw an exaggerated version of the lens,...

While the manual says to orient the focus lens convex-down (edit - whoops, no, it doesn't - the lens just came installed this way...), the internet, institutions, and other manufacturers, say...

Update:

Connected the frame of my laser to my outlet box ground, seems to be working so far.

Thanks for the note about sealing the HV connection! Pretty wild that it arced that far.... I guess the 19 kV ignition voltage of the tube means a potential arc length of ~19mm.

Speaking of the...

Not trying to hijack the thread, but I have a question about setting up my Shenhui laser:

What is the included tube of silicone sealant/glue for? Covering electrical contacts? or sealing a...

The email I used to contact him is shenhuilaser2010 at yahoo dot com dot cn

He can be difficult to reach at times though. As he said in a recent phone call - "I have many, many email...

I've got an Atrix... haven't lasered it, but it seems possible. The back is PC, which may produce some nasty gasses but shouldn't hurt your machine. (Searching the forums, PC seems to be a topic of...

So is acetal generally the best bang for the buck when lasering high strength parts? Or is PC, nylon, UHMW more commonly chosen?

Well, because like someone else also posted, it does react with moisture in the air to form a corrosive acid. The uncertainty is whether there's enough of it (and it sticks around long enough) to...

"Urea-formaldehyde resin" is toxic stuff. From Wikipedia:

"Urea-formaldehyde releases formaldehyde emissions into the air. This triggers watery eyes, nose irritations, wheezing and coughing,...

This all makes my quotes seem much more reasonable. I'm moving forward with a shipper, and hopefully the machine will be on the water soon. I'll update with total costs when the shipment is complete....

Jeff -

I don't know much about your coloring steps, but I have experience doing acrylic display cases where the glue line had to be invisible, and here's what I remember:

1) Weld on makes many...

They are including all costs in the quote, apart from delivery from to my apartment. (At my request, btw... because I know I'm going to have to do some disassembly in order to fit it through my door,...

I'm purchasing a SH-G570 laser from Shenhui and have all aspects settled but the shipping options.

Despite contacting several New York area brokers recommended to me by members of this forum, I'm...

Even if the machine can't be rewired, and they can't provide a transformer with it... you should be able to score the appropriate transformer used and locally for $100-300. Setting up a robot...