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General Discussion / Re: cnc lofi!
« Last post by kibodwin on May 05, 2021, 10:33:52 PM »
Great to hear from you guys and that you are still keeping yourselves busy (and there fore theoreticaly out of trouble!!).
I emptied the water out of the tube and filled it up again, making sure there were no air bubbles in it but yeah, I think it might be time for a new tube. I saw someone adding a drain pipe to extent the tube out the side to allow for a bigger tube (and therefore a more powerful one. Seems like a good idea to get a 60W instead of a 40W but I have other things to work on (a cnc I am getting working) so I will probably just get a 40W.
As far as purchases go I did not buy anything new except the house!!! So I am broke but can now make as many holes in the walls as I like!! WOOT! I also got a dog so I have been busy!!
As for the laser tube do you guys have any recomendations as to where to get one? My usual port of call would be ebay...
Off to listen to some more 'lofi'!!!!
Take care
Engraving / Re: painted metal
« Last post by Zax on May 02, 2021, 02:02:43 PM »
It depends on the wavelength of the laser, typically a CO2 will remove the pigment and leave white whereas a diode will just remove the surface. If you paint them white and then dark green you'll be able to remove the top layer revealing the white.
General Discussion / Re: cnc lofi!
« Last post by ThothLoki on May 02, 2021, 07:46:23 AM »
i have been more active on Discord lately myself. EleksMaker Z made me an admin on his Discord server. but it is basically dead now. I made a new laser and more server that is not tied to any brand. Lasers and anything CNC is in there.
General Discussion / Re: Engraver Upgrades
« Last post by ThothLoki on May 02, 2021, 07:43:51 AM »
OOF! Yea, I have been lucky enough to still have decent power from my laser modules. I have, however, bad luck with my nanos. While moving my machine, i ripped off the USB port...........

I think some extras are in order.

Right now, i am working on marking metal with a diode laser. I have has some success but am still dialing in the speed/power/passes
Corexy would be cool but it seems a hair over complicated for these simple machines. Just getting the motors off the gantry mount should help with backlash and help increase speed.
General Discussion / Re: cnc lofi!
« Last post by ggallant571 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.
General Discussion / Re: Engraver Upgrades
« Last post by ggallant571 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.
Engraving / painted metal
« Last post by QuietMike on April 30, 2021, 09:06:39 PM »
when lasering paint off of metal, like this ammo can, how do people get it white like that? if i burn the paint off, all that's underneath is dark bare steel
do you need a lot of power to turn it white
General Discussion / Re: Engraver Upgrades
« Last post by ThothLoki on April 30, 2021, 08:39:52 PM »
Quick mock up, but was thinking something like this for the Y axis motors
General Discussion / Engraver Upgrades
« Last post by ThothLoki on April 30, 2021, 08:12:31 PM »
Hey all. Been gone for way too long.
First, It has been roughly two years since I last did some serious lasering. My babies have been calling out to me to be used. Sadly, I was not able to accommodate for some time.
I am going on year 3 of a new job position. I now work in the CAD design department of my company. I now have a new baby boy who is going to turn 1 in 2 weeks!!! For those of you planning on having kids..........don't have one during a pandemic...........
About 6 months ago, I sold my house and moved 200 miles more north!!! So much happier now. For those of you that do not know. I lived about 30 miles outside of Minneapolis, MN. This have been a bit "tense" in my state for the past year. I am just happy to be away from the Twin Cities now.

Now, to the main reason for this post. I have my main machine assembled again and have been looking at it in the same way a plastic surgeon looks at a woman with a lot of money. I want to make it better. Lighter gantry, better cable management..........the list goes on.

What I am thinking. Get them heavy steppers off the Y axis. Mount them in the front and make a closed loop system with the GT2 belt. Anyone else try this?
For cable management, i want me some new drag chains. I like some of the printed versions out there, but am curious what others do.
General Discussion / Re: cnc lofi!
« Last post by Zax on April 30, 2021, 12:21:14 PM »
Its been more than quiet. I miss being able to ask a technical related question and get a good discussion.

Agreed. Ralph did such a good job keeping the forum "clean" of spammers and other junk posts.
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