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  #1  
Old 05-18-2018, 09:50 AM
ggeorge ggeorge is offline
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Default cheap chinese laser

Hallo

As a hobby me and a friend of mine construct instruments. We are thinking of buying a cheap Chinese laser as cheap as possible for inlays (1,5 - 2 mm wood).

Has anybody used such laser before, if yes which model and if pleased with the outcome.
Has anybody used the ebay lasers and especially K40 which is very cheap?

Thank you !!!
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Old 05-18-2018, 10:34 AM
bostosh bostosh is offline
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Default stop and think first

It's not the machine you need, it is "the what you are going to do with it".
check the experience on the cnczone.com, it is where the laser expertise is.
I have seen terrible laser work which always needs hand work.
There are no freebies to doing correct inlays.

Try doing the inlay design first, then test burn it into junk wood.
Rent someone's machine and use your data.
I had to go thru two laser amateurs with cheap machines before i called my friend with 30years experience and a 15k machine. correct parts first time out.

We can assist ...

https://drive.google.com/open?id=1RD...znNuTVnzBEDawN
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Old 05-18-2018, 10:58 AM
ggeorge ggeorge is offline
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Thank you for the response.

I am also worried that the cut quality will be bad. I have tried once to cut in an american laser of a shop and the quality was perfect.

Unfortunately in Greece there are not any laser for rent, and for this reason i am asking for the opinion of someone who has used lasers for such work.

The only chinese laser i have tried in Greece is the Bodor and i was satisfied with the outcone. However it costs 4000E.

I haven' t tried the ebay lasers (1000-2000E) since they are not available here.
I will visit the site you suggested in case someone has experience on cheap lasers. Thanks again.
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Old 05-18-2018, 04:33 PM
tadol tadol is offline
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If it’s a hobby, couldn’t you do it with a small pantograph router? Save a whole lotta money, which could be put into materials or tools which would actually make better instruments -
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Old 05-19-2018, 08:09 AM
ggeorge ggeorge is offline
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Hallo. Thank you for the response.

I have used the cnc of a friend but it leaves gap between the inlays equal to the width of the bit (there is the option one of the two wood to be slightly larger so as to fit but i would like to avoid it).
Besides the inlays are so small that cnc may break them.

In general i think that with the laser it will be easier and more detailed.

Thanks again!
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  #6  
Old 05-25-2018, 05:40 AM
mirwa mirwa is offline
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Quote:
e
Laser is imo awesome for doing inlays, you can use the laser to pocket the spot the inlay is going into and you can cut a perfect piece of wood or plastic to fit the gap.

The only thing you cannot do is cut pearl with a standard co2 laser, there are people who will say you can, but the pearl sheet is the thickness of a piece of paper which is pretty well useless.

Here is an example, all laser cut



Steve
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Old 05-25-2018, 05:45 AM
mirwa mirwa is offline
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Another example,

This one I used the laser to pocket the headstock of the PRS, and then I Cnc machined the mother of pearl, it was a press fit

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Old 05-26-2018, 07:42 AM
zeeway zeeway is offline
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Yassou George,

There is cnc software that compensates for the cutter size, and adjusts the size of the inlay to match...such as that from Vectric in the UK. It still takes skill with the cnc router or laser to achieve a tight fit.
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Old 05-26-2018, 11:39 AM
tadol tadol is offline
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If you have info on good, inexpensive software that will do 2.5D and generate Gcode, I’d love to hear about it. Ideally something simple that will run on iPad or Mac - I would be interested in doing inlay, but I really want to mill printing plates -
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Old 05-26-2018, 07:55 PM
zeeway zeeway is offline
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Quote:
Originally Posted by tadol View Post
If you have info on good, inexpensive software that will do 2.5D and generate Gcode, I’d love to hear about it. Ideally something simple that will run on iPad or Mac - I would be interested in doing inlay, but I really want to mill printing plates -
Vectric in the UK produces Aspire CNC software. It runs on a PC, or a Mac in PC emulation mode. It will do 2.5 d, inlay, etc. it is everything you asked about except it is not cheap.
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Old 05-26-2018, 09:33 PM
mirwa mirwa is offline
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Aspire is around 2000 plus dollars, I have cut3d and vcarve from the same company, both are great programs, cut3d cost me around 500 usd, I think and vcarve was just shy of a thousand or so when I bought it.

The two examples above were both done in vcarve.

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  #12  
Old 05-26-2018, 09:52 PM
tadol tadol is offline
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Well, I only have a grand tied up in my mill, and it’s just been upgraded with a very cool controller made by a company called Buildbotics - it’s a small family business about a block away from Bruce’s shop in Petaluma. Not interested in becoming a machine programmer - hoping to find software that can do some very simple things for very simple money while I figure out if this machine has a place in my shop. Looking at Inkscape, which has a Gcode plug-in, and Buildbotics has an simulator called Camotics, which should be able to output code shortly. But I’d rather put time and energy into practicing my scales and flat picking than into learning to code - 😎
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Old 05-26-2018, 10:30 PM
charles Tauber charles Tauber is offline
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Quote:
Originally Posted by tadol View Post
Looking at Inkscape, which has a Gcode plug-in, and Buildbotics has an simulator called Camotics, which should be able to output code shortly.
For laser engraving, you should be able to "print" directly from programs like Inkscape and Corel Draw without the need for the intermediary step of generating G code. That one doesn't need G code for most basic cutting/engraving is one of the things that makes lasers the most accessible of CNC machinery.
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Old 05-27-2018, 08:35 AM
bostosh bostosh is offline
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Default laser machine

Quote:
Originally Posted by tadol View Post
Well, I only have a grand tied up in my mill, and it’s just been upgraded with a very cool controller made by a company called Buildbotics - it’s a small family business about a block away from Bruce’s shop in Petaluma. Not interested in becoming a machine programmer - hoping to find software that can do some very simple things for very simple money while I figure out if this machine has a place in my shop. Looking at Inkscape, which has a Gcode plug-in, and Buildbotics has an simulator called Camotics, which should be able to output code shortly. But I’d rather put time and energy into practicing my scales and flat picking than into learning to code - ��
tadol, show us a picture of what you want to do, there will be someone to do the gcode easily once you have the Art. Then decisions can be made how to proceed with what software.
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