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General Questions / Re: What information do we have on these boards?
« on: July 01, 2021, 08:50:00 AM »
I gave up on the F and went back to the E versions. Should you resolve the issues please post.
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T2 Engraving / Re: Laser quit burning
« on: June 22, 2021, 11:58:45 AM »
My 2.5W started failing (3 years) and I changed to a fixed focus 5.5W. Month later I bought a replacement 2.5. Used the power supply that came with the 5.5W module. Turns out the old 2.5W still works as expected, just seems to consume more current than the new one. The old 5A supply does not supply enough current to burn with any of the 3 diodes.
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General Discussion / Re: Wish me luck!!!
« on: June 05, 2021, 10:13:43 AM »
Any thoughts on use? How is the baby?
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Mini CNC / Re: Idea to set constant z axis bit hight?
« on: May 27, 2021, 12:11:51 PM »
Confucius say "Chinese metal box weaker than 3D printed one."
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Mini CNC / Re: Idea to set constant z axis bit hight?
« on: May 22, 2021, 09:44:47 AM »
The problem is "you were thinking" again. I purchased a fixed focus diode laser by mistake end use a 3d printed spacer and a simple screw clamp mechanism to set the height. Find it easier than using the adjustable lens.
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General Discussion / Re: cnc lofi!
« on: May 01, 2021, 07:27:44 AM »
I see you are active on Facebook. I have purchased 2 Two Trees core-xy printers over the past couple of years and use Facebook for support. Ready to trash both and Facebook along with them.
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General Discussion / Re: Engraver Upgrades
« on: May 01, 2021, 07:20:42 AM »
Good to hear from you. This group has been very quiet. Much quieter than a baby!!!!
I went core-xy three years ago. 8020 extrusion, linear rails and bearings, 3D printed joints and mounts. Currently working on a powered Z-Axis. Would like about 5mm travel.
Poor laser is dying. Works but consumes significantly more power.
I went core-xy three years ago. 8020 extrusion, linear rails and bearings, 3D printed joints and mounts. Currently working on a powered Z-Axis. Would like about 5mm travel.
Poor laser is dying. Works but consumes significantly more power.
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General Discussion / Re: cnc lofi!
« on: April 29, 2021, 04:29:01 PM »
Its been more than quiet. I miss being able to ask a technical related question and get a good discussion.
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General Discussion / Re: completily off topic; dog owners, what forum for dog info?
« on: February 10, 2021, 11:25:15 AM »
We took ours to "Puppy Boot Camp". Bought both the chock and electric shock collars but could not use either. After nine months she settled in and is now 99.9% voice responsive. Positive rewards with "High Quality" treats really worked. She can smell cheese or hot-dog from 500 meters. We live in an area where we do not normally use a lease. When it is attached she seems to think she is controlling me. Remember, there is nothing innate in a lease. They have to learn that something good is the end result.
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Engraving / Re: Laser pulse and trace image
« on: December 29, 2020, 10:19:33 AM »
What software do you use to control the laser?
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General Discussion / GRBL problem
« on: December 08, 2020, 07:38:51 PM »
I have grbl-1.1f installed on a couple of machines and today isolated a problem with the firmware. If a limit switch is asserted when the CPU comes out of reset, the HOME function does not work. I ended up manually moving the rail and resetting the CPU.
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General Discussion / Etching ceramic tile
« on: November 30, 2020, 04:43:39 PM »
I've been have pretty good results etching white ceramic tile by painting with black or dark green high temperature paint. When it works, the ceramic surface is slightly fractured and the paint gets firmly embedded. Scratch resistant, dishwasher safe.
The downside is thin lines etched in parallel to the burn path are nice while those perpendicular are not so nice. Especially under a microscope. If the lines are 3 or more pixels wide there is no problem.
Getting the speed/power recipe correct is critical. Being off by 50mm/min can make a huge difference. Tried slowing the speed for single width pixels but it wasn't very helpful (works nice on wood). Wondering if a 45 degree burn would be better.
The downside is thin lines etched in parallel to the burn path are nice while those perpendicular are not so nice. Especially under a microscope. If the lines are 3 or more pixels wide there is no problem.
Getting the speed/power recipe correct is critical. Being off by 50mm/min can make a huge difference. Tried slowing the speed for single width pixels but it wasn't very helpful (works nice on wood). Wondering if a 45 degree burn would be better.
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Trouble Shooting / Re: X Axis Issue
« on: November 04, 2020, 05:56:06 PM »
If I recall correctly, most stepper motors can tolerate 80C.
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Trouble Shooting / Re: X Axis Issue
« on: November 04, 2020, 10:43:12 AM »
I would expect the Y stepper to be set at approx twice the X.
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Trouble Shooting / Re: X Axis Issue
« on: November 04, 2020, 10:03:14 AM »
Which axis has the dual motors?