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Glen on the lasers I have had the dot size is about 3mm or so and needs to hit dead center on the final mirror before its directed down to the lens where its focused to a . size . My guess as...

John I have never heard of a copper mirror, here is where I get my stuff from > https://lightobject.com/lens-mirrors/mirrors/

Ok I found gold mirrors on a copper plate laser mirror on Amazon.

Avid or CNC Router Parts has a proven track record and has wonderful customer support. It uses Mach 4 a good control system with good support. I had a GRBL system and got tired of the constant...

Did it work ok before you changed things? Never heard of copper mirrors, maybe others have. Just top of the line mirrors, all aligned correctly should be all you need. Like other have said here,...

It might be worthwhile to look into just modifying the Z if thats all it needs.

I had a GRBL machine and it was a Joke. Get a machine with a real made for CNC controller it can be Acorn, Mach4 or other designed for machine control. Yes the Avid CNC machines are good worth the...

Member since 2012 and first post on a old Thread. You would get more attention starting your own Thread.

George I think he was looking for a program or app.

Its a Dynamyte 2400 CNC and OEM software and controller from the 80's. Folks are reusing the 48 vdc Power supply and stepper motors, and some of the limits. I have worked with Mach4 and can do...

Are they sturdily enough to do steel with light cuts?

Ok thanks John this will be yet another CNC project build.

But can you actually do something with it? Thinking of getting rid of a good drill press that never gets used and taking on this below as another project. But has anyone used the Buildbotics...

I wonder how many are still installed after a year? I can't imagine trying to get something done with it in the way all the time.

Since you need to vacuum up anyway, simpler just to put a dust shoe and vacuum on the router or spindle. Owned several CNC routers... never an enclosure as it really slows down access to change bits...

I decided not to buy one after all.

By the time you buy one of the smaller machines and then find out the shortcomings and it has zero resale you could have a machine that just works. Avid https://www.avidcnc.com/ (CNC Router...

Unless you can find someone who repairs those machines and they have a used one your out of luck. My guess that's a pretty common failure item for those machines. Might try eBay.

I run on Parallels its just as fast as the Mac is and these are not cheap Dell or HP laptop for the retail I want it cheap crowd. I also use Lenovo's for the same reason, they just work.

The problem with thin materials on any CNC is thin metal is very hard to hold securely. The one time the bit catches will tear it right off the table. Brass won't spark, that's why they use brass...

I ended up purchasing a like new used 2019 as above from a graduated Engineer up at our college, very good spec's, battery and memory. Saved $1500 over new price. Its in beautiful condition as he had...

Good way to burn up the condenser fan motor pulling water laden air across the motor. I always waited a few minutes for the water to evaporate. Yes I know when it rains they may get damp but that is...

I am looking on OWC at a 15 inch, Mid 2019 with 16 Gb and 512 SSD for $999 plus tax to me of course.

I have a 2010 MacBook Pro which I also run Windows 7 on that I would like to replace, NO not with new but a 2017-2020 model and It needs to be 15 inch, 16 Gb memory, 512 Gb SSD drive. Any suggestions...

I just order off Amazon they have the name brand ones and you do not need to drive all over town. Home Depot carries a lot also, zero difference between Lincoln tips at Home Depot or your LWS,...

According to Evergreen the issues with the Ceramic tubes is they use Epoxy for the connections and they sometimes leak. So recharging without finding and fixing leaks is the problem. So if its...