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Author Topic: Retrofitting my Chinese laser  (Read 5091 times)
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jmurphycnc
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« on: March 28, 2017, 01:49:45 PM »

Hi Guys.

I have a cheap chinese 40w c02 laser. The control board gave up the ghost a couple of years ago, and I never tried to replace it.

I was wondering if anyone here has replaced their boards with a non stock board to drive the laser?

If so, do you have any recommend ations for a particula r board to use?

Thanks for your considera tion.

John
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Ya-Nvr-No
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« Reply #1 on: March 29, 2017, 07:02:38 AM »

I'm still using the PS that came with my K40 unit but I have used this site and had good luck.

http://www.lightobject.com/Laser-Power-Supply-C15.aspx

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ArtF
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« Reply #2 on: April 02, 2017, 08:40:44 PM »

Hi:

   Theres a thread on the forum on users configuri ng their K40 lasers to run on a CNC57 board and using Auggie to run it.
Theres a bit of a learning curve, but youll find schematic s and such users like YanvrNo used for his.

Art
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Mooselake
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« Reply #3 on: April 10, 2017, 12:26:29 PM »

A number of K40s have been converted to smoothiew are, and it's a pretty active topic on the G+ K40 group.  I have a replaceme nt controlle r sitting here for my K40, although other issues (including a a tendency to procrasti nation) mean it hasn't been installed yet.  There's a G+ group for this conversio n board, lots of informati on and help if you want/need it.  K40s used a number of different power supplies, but with most of the more recent versions this could be close to a drop-in alternati ve.

People also use GRBL and arduino based controlle rs, some of them fairly inexpensi ve.  Like Art said, Augie's an excellent alternati ve.

Which controlle r (Moshii or Nano) do you have?  I might have an M2Nano, commonly used with Corel Draw, available "soon" complete with dongle etc.  A recent medical procedure has put me on a 10 pound lift restricti on so I hope to pare down the limited weight project list in the near future.

Kirk
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Stojan
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« Reply #4 on: April 21, 2020, 11:05:50 PM »

I know this is an old post but if anyone else has a K40, chinese laser. I can vouch for the mini gerbil upgrade. Its pretty much a drop in replaceme nt board. Depending on whether or not you have a ribbon to your X drive three wires need to be plugged in. Your done in about 5 minutes.

You can toss their software in the rubbish and download laser web and do some nice things with it.

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Mooselake
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« Reply #5 on: April 22, 2020, 12:26:02 PM »

The mini gerbil board, alas, costs almost as much as the rest of the laser.  I imagine it has to do with small productio n volumes rather than profitter ing, but it's still spendy.

Since the original discussio n the M2nano's protocol has been reverse engineere d (not only do the chinese rampantly copy our stuff they also pirate each others, hence the stupid dongle dodad) and you can run the machine dongleles s with K40Whispe rer from scorchwor ks (it's free, although there are people selling it on eBay and elsewhere to those who are weak in the search-fu)

And I still haven't installed my controlle r board, but I'll blame a lot of that on not making it to the Mooselake Manor for over a year and half because of knee surgeries and a no-step MLM south in Florida.  Maybe some procrasti nation and ADD in there too.  Mrs Moose wants to stay here until the CV situation dies down so we're not leaving next week as planned

Kirk
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Stojan
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« Reply #6 on: April 22, 2020, 05:42:28 PM »

The mini gerbil is $80 usd, that's not so bad in compariso n to the cohesion3 d board which is $199 usd. The K40 is a totally different laser with the new board in it...
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Mooselake
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« Reply #7 on: April 23, 2020, 08:46:54 AM »

You're right, I was looking at the super gerbil.  C3D's really raised its prices, think my prototype board was around a hundred bucks.  The original controlle rs seem more designed to keep the other guys from copying them than to see what they could get out of the amazingly cheap (last time I looked, pre CV, they were $300US delivered) K40s.

If chamnit finds the time to make the official 32bit grbl releasabl e expect a wave of sub $40 32 bit boards like the E3 mini.  Seems like there's a use for all those smartphon es after all (besides increasin g EMS and hospital income when they walk around staring at them), made high power MCUs super cheap and less than the 328 based controlle rs.  Didn't seem that long ago when a AT90USB12 80 Printrboa rd was $140...

Kirk
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Stojan
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« Reply #8 on: April 24, 2020, 12:58:20 AM »

I hear what your saying, but you know how it is Profit before anything sensible. Makes me remember the Ferengi in StarTrek. .. Yes I am that OLD lol...
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Mooselake
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« Reply #9 on: April 24, 2020, 09:37:39 AM »

I watched the original star trek when it was new, although it was quite a few years until I saw it in color.  DS9 is a newcomer. ..

Kirk
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Stojan
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« Reply #10 on: April 24, 2020, 09:51:35 AM »

I watched the original star trek when it was new, although it was quite a few years until I saw it in color.  DS9 is a newcomer. ..

Kirk

LOL well you may just be older than me...

I can remember watching the first episode in black and white as a child. Dam that's a lot of years ago.
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tweakie
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« Reply #11 on: April 25, 2020, 02:33:46 AM »

My Dad told me about Star Trek  Smiley

Tweakie.
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Stojan
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« Reply #12 on: April 25, 2020, 03:36:56 AM »

My Dad told me about Star Trek  Smiley

Tweakie.

Well I made a Star Trek fan out of my son, who also did the same for the grand kids. They all know the Vulcan salute and who Scottie is.

Long live Seven of Nine Smiley my second favorite lol

Cheers and avagreatw eekend people.
Steve
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Mooselake
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« Reply #13 on: April 26, 2020, 12:30:00 PM »

In the early 80s I was a manager at a small company, and had an engineer named Scott that reported to me.  Scott would smile at the first Beam me up joke, then politely ask you to stop at the second.  He was an ex football player, nobody ever argued.

Old people are older than me.  I'm just a creakie retired young guy.

Kirk
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Stojan
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« Reply #14 on: April 26, 2020, 10:11:58 PM »

In the early 80s I was a manager at a small company, and had an engineer named Scott that reported to me.  Scott would smile at the first Beam me up joke, then politely ask you to stop at the second.  He was an ex football player, nobody ever argued.

Old people are older than me.  I'm just a creakie retired young guy.

Kirk


Now remember I'm blaming you for bringing up the Scott's, so I find myself compelled to share the following ..  https://www.youtube.com/watch?v=J3lYLphzAnw
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