Recent Posts

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Cutting / Laser doesn't cut evenly
« Last post by korbabub on Today at 09:12:08 AM »
Hi everyone. I have been trying to cut some things lately and I've got an issue.
As you see, some places are nicely cut while on some other parts the cut isn't visible at all. The plywood may not have been perfectly leveled but I doubt such a small difference would matter (?). Besides, even when cutting small things where there is physically no way that the height is different even by 1mm it happens. The next thing is, I noticed that the laser "glow" of blue light isn't even while cutting, I mean sometimes it gets stronger and then weakens, I don't know if that's normal? Anyway, what do you think may have caused that? I'm using 2.5w laser and the settings were 130 feed rate with 5 passes :/
https://imgur.com/a/pkXav
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BenCutLaser / Re: Home Switches
« Last post by Zax on Today at 04:49:34 AM »
I think that's the firmware I compiled for T2Laser, it uses D9 for X and Y limits. There is no Z limit switch enabled.

You would wire 2 N.O. switches in parallel to D9 and GND, then enable the switches (not sure if BCL has a simple way to do that or not but since it's a firmware setting you can either do it manually or use T2Laser to enable it in the settings menu and then go back to using BCL and it will stay enabled).
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BenCutLaser / Re: Home Switches
« Last post by Ktronik on Today at 04:07:40 AM »
Hey Lob0426,

thx so much for the info....I am new to lasers and love the build and just taking my time....to set it up nice and also safe

just setting up the A5 w Z axis.....and wondering how I go about getting a re-setable focus when changing to different height 'object' that would be cut or engraved.

if there is no 'Z limit' in the BCL version of GRBL 1.1, I wonder would you know if the 'probe' or 'stop / resume' are enabled on BCL??

was hoping to use a depth gauge setup w switch attached to probe the 'object' at my set height.....say my gauge is set at 45mm high...I can hit home or probe or something and it Z-axis lowers but stops when object hits the switch.....maybe i can use the 'stop' pin on my EleksMaker Mana 3 axis....to stop the Z-axis.....

just ideas anyway...will have a play and poke around....thx again

Ktronik
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General Discussion / Re: cohesion3D on a k40 with T2Laser..
« Last post by kibodwin on Today at 01:18:11 AM »
I took a look at the file I uploaded, it is indeed broken, I need to check to make sure the original is not also broken like this one I uploaded. Luckily the original files are available online so easy to replace
https://www.dropbox.com/sh/7v9sh56vzz7inwk/AAAfpPRqu63gSsFk3NE4oQwXa?dl=0

=)
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General Discussion / Re: cohesion3D on a k40 with T2Laser..
« Last post by kibodwin on Today at 12:21:42 AM »
Super, thanks for this, I will take a look after I get out of the office!!
=)
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BenCutLaser / Re: Home Switches
« Last post by Lob0426 on September 25, 2017, 11:11:12 PM »
If you are using the GRBL 1.1 it will be D9, D10, D12. D11 and D12 were swapped to get PWM for the Laser. I do not know what the default "home switch" setting is in the BCL version anymore. It used to be X and Y both on pin D9 with each axis homing in sequence. Meaning X axis homes then Y axis homes. They did not have homing set for Z last I knew!
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Projects / Re: My Rotary Axis
« Last post by nottingham82 on September 25, 2017, 09:56:02 PM »
no i didnt make any adjustments.  Just threw it on and it worked. 

They do bind a bit but That kinda helps it keep its grip.  The weird shaped grippy things the file came with binded more than my smooth cylinders.  I dont have any bolts on the part that has the shaft attached.  That is just press fit. 

I threw some tape on the hydroflask so I wouldn't ruin the finish until I got the hang of it and actually intended too!  Although I did make a few unintended marks where it burned through but that is ok.  It is a test piece.   
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Laser Accessories / Re: Extendable legs
« Last post by ThothLoki on September 25, 2017, 09:53:03 PM »
here is my stl I am printing right now.  I went with raising the base of the feet 80mm.  I then did a draft on the base and a filet to remove some unneeded material.  In total my new feet are gonna be 100mm tall.  I also need to raise the base of my rotary axis 5 more mm. Although I'll probably just use a coaster for a few weeks till i run out of things to print.

Lol, good luck running out of things to print. Now that my rotary is done, I just loaded 6 more files to octoprint. That adds about another 48 hours of printing time for one complete project (I need 3 of these things before January)

Hey, you might find a spare coaster or two. If not let me know, I have enough failed ones to act as another work bench leg  ;D
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Projects / Re: My Rotary Axis
« Last post by ThothLoki on September 25, 2017, 09:48:18 PM »
Lol. I took some video myself that I plan on posting.

What did you use as the resist? Tape?

I used your rotary base, but it kept binding when trying to open or close the jaws. Turns out, the channels on the base were to shallow for the lock nuts. Nothing a dremel couldnít fix  ;D

I donít know if it was your file, my printer, or the supports, but it was an easy fix.

Did you have to adjust the current pot on the driver to use the y axis being that it is normally set up for two motors? I figured I would use the x axis for test because the driver was preset for 1 nema17 motor
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Laser Accessories / Re: Extendable legs
« Last post by nottingham82 on September 25, 2017, 09:45:45 PM »
here is my stl I am printing right now.  I went with raising the base of the feet 80mm.  I then did a draft on the base and a filet to remove some unneeded material.  In total my new feet are gonna be 100mm tall.  I also need to raise the base of my rotary axis 5 more mm. Although I'll probably just use a coaster for a few weeks till i run out of things to print.
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