PDA

View Full Version : Going down the rabbit hole for fun. Getting a cheap china laser



Clark Pace
04-25-2016, 12:27 PM
So you have seen those cheap ultra china lasers on ebay (sub $400). I purchased one 4 years ago. I was modifying it, and seeing what I could get out of it. Well looks like the new versions are a a bit different. Perhaps a bit better.

So I'm going to see what has changed. I have no illusions as it will be a pure hobby project again. After mucking around with the last one I purchased I was
successful, and it made for a fun toy. Non techie / non diy people probably end up using these as door stops mostly.

I have a decent china laser as well. A Redsail which has served me very well for the last 3 years, and it has more than paid for itself.

It will be interesting to me to see if any improvements have been made.

Bill George
04-25-2016, 3:24 PM
Before I did that I would consider one of those low cost diode based laser/engraving "kits" selling on eBay for less than $400. I think most of them are rated at 3 or 4 watts. Most of my "free" time is already spoken for....

Chris DeGerolamo
04-25-2016, 3:40 PM
Is this info that needs to be shared with your home insurance policy holder?? :)

Clark Pace
04-25-2016, 5:01 PM
Before I did that I would consider one of those low cost diode based laser/engraving "kits" selling on eBay for less than $400. I think most of them are rated at 3 or 4 watts. Most of my "free" time is already spoken for....


I have look at those also. They look interesting.

Bert Kemp
04-25-2016, 11:38 PM
what would be a comparison of a 4 or 5 watt diode to a co2 laser

David Somers
04-26-2016, 11:41 AM
What specifically are you looking at Clark? Am curious to look it up in order to follow your adventure better!

Clark Pace
04-28-2016, 9:30 PM
What specifically are you looking at Clark? Am curious to look it up in order to follow your adventure better!


http://www.ebay.com/itm/High-Precise-40W-CO2-USB-Laser-Engraving-Cutting-Machine-Engraver-Wood-Cutter-/200902245694?hash=item2ec6b4fd3e:g:nrUAAOSw2s1U0J0 2

or

http://www.ebay.com/itm/50-65cm-area-Mini-3000MW-Blue-Laser-Engraving-Cutter-printer-power-adjustable/272209117353?_trksid=p2045573.c100034.m2102&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%2 6asc%3D20131003150253%26meid%3D237822be1c67444f8bd 9bac7a82bf750%26pid%3D100034%26rk%3D2%26rkt%3D7%26 sd%3D200902245694

Bill George
04-29-2016, 9:16 AM
Not really sure what you can do with a 3 Watt diode laser? The only problem with the cheap machines, the basics such as power supply and stepper motors are there and work, its the $rappy software and controller.

Steven Kalmar
04-29-2016, 9:48 AM
The only problem with the cheap machines, the basics such as power supply and stepper motors are there and work, its the $rappy software and controller.

Not to mention that the tubes don't last very long. The low price of these machines are quite tempting. It will take a few more hundred to upgrade them to usable condition. There are many resources out there on upgrading these machines. They aren't bad, one just needs to understand what one is getting.

It's like the the $999 written on the used car windshields. You aren't likely to get what you expect for that.

Clark Pace
04-29-2016, 6:59 PM
Not to mention that the tubes don't last very long. The low price of these machines are quite tempting. It will take a few more hundred to upgrade them to usable condition. There are many resources out there on upgrading these machines. They aren't bad, one just needs to understand what one is getting.

It's like the the $999 written on the used car windshields. You aren't likely to get what you expect for that.

I think I mentioned that I already owned one of these before. So I have an idea what I'm getting into. Though I think the newer software and USB control are two improvements.

Steven Kalmar
04-29-2016, 7:46 PM
Sounds like a plan then. Better to go in with eyes open. I've been tempted to pick one myself. Hard to believe they are so cheap, even if they do have the worst components. I've seen people have great luck with them however. Have fun and keep us apprised.

Bill George
04-29-2016, 8:08 PM
I think Clark knows what he is doing. I was going to go that route at one time until I figured up the costs. Prices are coming down.

Dave Stevens-Vegas
05-02-2016, 2:01 AM
There are several communities out there based on the K40 series machines. Some pretty good controller and software hacks. I didn't get one but from what I gather the newer versions are better particularly in terms of controllers. Software still not so much but between places like Open Builds and the K40 groups there are several options.