Search found 133 matches

by SWMS
Mon Nov 13, 2017 7:27 pm
Forum: CO2 Laser Discussion
Topic: Real time auto focus tracking system for CO2 laser
Replies: 7
Views: 145

Re: Real time auto focus tracking system for CO2 laser

I’ll help if you send me a free prototype to test :lol: hah.

So the second one is a laser head with integrated autofocus rather than these bolted in proximity switches. ?
by SWMS
Thu Nov 09, 2017 9:33 pm
Forum: CO2 Laser Discussion
Topic: Real time auto focus tracking system for CO2 laser
Replies: 7
Views: 145

Re: Real time auto focus tracking system for CO2 laser

So to calibrate the focus lens you’d have to put the head at the limit of its extension so that when at its shortest extension it stays focused? I assume it works by bouncing a IR beam off the surface of the material that then returns a voltage and that tells you how far away it is. So then you have...
by SWMS
Mon Nov 06, 2017 1:39 pm
Forum: CO2 Laser Discussion
Topic: Real time auto focus tracking system for CO2 laser
Replies: 7
Views: 145

Re: Real time auto focus tracking system for CO2 laser

So the system works independently of the DSP and it’s only the focus lense tht moves up and down?
by SWMS
Mon Nov 06, 2017 12:09 am
Forum: CO2 Laser Discussion
Topic: Real time auto focus tracking system for CO2 laser
Replies: 7
Views: 145

Re: Real time auto focus tracking system for CO2 laser

That looks heavy!

Would you need a larger motor on the x axis? I suppose if you are going for autofocus you may as well have closed loop hybrids.
by SWMS
Sun Oct 29, 2017 2:48 am
Forum: D40/K40 small chinese CO2 laser machine
Topic: stepper motor noise
Replies: 1
Views: 101

Re: stepper motor noise

They do whine when on hold. I think it’s when they are between steps and micro stepping. I recently upgraded to hybrid closed loop motors. They are much quieter,smoother and also don’t stop with as much inertia as steppers so have far less vibration.
by SWMS
Sun Oct 29, 2017 2:45 am
Forum: CO2 Laser Discussion
Topic: gunk in tube: what to do?
Replies: 2
Views: 93

Re: gunk in tube: what to do?

I’ve had problems with mould /gunk too. The best thing to do is clean your buckets and lines with a sterilising solution. That could be a weak bleach water mix or the stuff they use for cleaning lines in a pub. Then add something like Milton sterilising fluid or iodine every few weeks. It doesn’t ma...
by SWMS
Sat Aug 26, 2017 10:46 pm
Forum: Tips and new on the DSP & Software
Topic: Any Lasercad alternative out there?
Replies: 10
Views: 1189

Re: Any Lasercad alternative out there?

You don't need to use a plugin to run Corel Draw with RayCam, LaserCad or any of those programs. All the macro does is export it as a dxf in the background and open the file for you. Yes it's a bit of a pain to have to manually export it but it works. If you have Corel Student Ed the macro will neve...
by SWMS
Fri Aug 25, 2017 9:22 pm
Forum: CO2 Laser Discussion
Topic: 1800x1200 Gantry Vibrations
Replies: 3
Views: 435

Re: 1800x1200 Gantry Vibrations

What kind of steppers are you using? I recently upgraded to closed loop steppers after a fire and the lower resonance of the closed loop steppers is amazing! Edit - Just woke up and all my best ideas are when I wake up. You are basically experiencing what machinists call chatter. If the simple steps...
by SWMS
Wed Aug 23, 2017 9:01 pm
Forum: DSP X7
Topic: Autofocus sensor (pen Style) on X7 DSP
Replies: 8
Views: 490

Re: Autofocus sensor (pen Style) on X7 DSP

As far as I am aware no amateur / semi pro laser does continuous autofocus. You have two options. First option Run two jobs. One for one end of the pipe. One for the other. Second option My advice would be choose a lens with a long focal point and set the focus half way between your minimum and maxi...
by SWMS
Sun Jun 18, 2017 7:58 pm
Forum: DSP X7
Topic: Best settings for dithering on anodized aluminum for DSP
Replies: 7
Views: 801

Re: Best settings for dithering on anodized aluminum for DSP

If you put the bed closer to the lens without getting a lens with a smaller focal point the opposite of what you think will happen will happen. The dot size will be larger. If you cut a cross section through a laser beam it looks like a sand timer. First it's large, then is small at the focal point ...
by SWMS
Mon Jun 12, 2017 3:03 pm
Forum: DSP X7
Topic: objects sometimes are displaced
Replies: 2
Views: 339

Re: objects sometimes are displaced

I get similar things happening. I've opted to upgrade to a closed loop system. I had a fire in my laser anyway so decided to rebuild the x axis with closed loop. At least you can eliminate a few things then.
by SWMS
Mon May 08, 2017 1:56 am
Forum: Tips and new on the DSP & Software
Topic: Any Lasercad alternative out there?
Replies: 10
Views: 1189

Re: Any Lasercad alternative out there?

Importing an AI file never seems to work properly, it either loads it weirdly or doesn't load it at all, stick to exporting to DXF. I've never tried the illustrator plug in as I use illustrator on a Mac.


I find Corel works the best with LaserCad.
by SWMS
Thu May 04, 2017 10:58 am
Forum: CO2 Laser Discussion
Topic: Always have a fire extinguisher handy
Replies: 0
Views: 266

Always have a fire extinguisher handy

IMG_3555.JPG IMG_3551.JPG Looks like some of the stepper wiring or microswitch wiring caused a fire and stopped the head moving. Luckily I had an extinguisher on hand. Most parts are recoverable luckily. Mirrors and lenses seem ok. Laser still fires, no mission critical metal warped. Melted plastic...
by SWMS
Wed May 03, 2017 2:33 pm
Forum: D40/K40 small chinese CO2 laser machine
Topic: Laser Engraver NOt Functioning Correctly, need assistance.
Replies: 1
Views: 328

Re: Laser Engraver NOt Functioning Correctly, need assistance.

What problems are you having exactly? I am in the UK and although have a friend in Wisconsin I cannot travel to you but can offer advice :)

Ryan
by SWMS
Sat Apr 22, 2017 1:16 am
Forum: DSP X7
Topic: Best settings for dithering on anodized aluminum for DSP
Replies: 7
Views: 801

Re: Best settings for dithering on anodized aluminum for DSP

By the way...

What power is your laser?

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