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Topics - kn4ud

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General Discussion / New TEST Firmware
« on: September 28, 2016, 09:24:20 AM »
This is a modified firmware based on the .9j. The PWM frequency has been lowered to 978Hz and the duty cycle has been raised and made more linear . I have checked it on BCL and T2 it has not been tested on other software. I would like for anyone interested in trying this firmware and giving your input on it. Their is a small group of us here who are working hard on firmware and hardware to do our best to better the laser and make it more affordable to all. 

General Discussion / New for Arduino
« on: July 13, 2016, 04:23:33 PM »  Has any of the Arduino fan checked this out, looks very good but kind of confusing to my old school way of programming. I am going to play with it and see how it works. If you like the Arduino (like I do) it is worth checking out.

T2 Engraving / Cutting with T2
« on: July 01, 2016, 06:49:26 PM »
 Here is a 30mm x 30mm finger joint box cut with T2. I used 3mm plywood which is Midwest Products craft ply. The box was pretty accurate I drew it as 30 x 30, did not measure the plywood which turned out to be 30.16mm and not 3mm, and it ended up being 30.4 all the way around. That is not bad at all.

General Discussion / LCD & SD card
« on: July 01, 2016, 07:55:27 AM »
 I know this would not be an easy task but I have been thinking about this for the past weeks. I have mentioned the Arduino 2560 and ramps 1.4 board and know it could be done but not for the faint at heart. I use this setup on my 3d printer and it works very good. Another feature is using a LCD & SD card . This is something that is very handy. I know it would require some programming to make it work and I might be nuts for even thinking about it but I will have to say this is what I have on my 3d printer and I like the fact of being able to load the file on the SD card, plug it into the printer and run the thing as a stand alone unit. I would like to do this with the laser engraver. I was also thinking you would not have to use the ramps 1.4 but make an adapter to use the L2 or L6 on a arduino 2560 and port the program from the uno to the 2560 and add in control for the above board.  Yes , I have a problem, if it works don't leave it alone, Make It Work Better. 

T2 Engraving / Profiles in u version
« on: June 29, 2016, 04:40:18 PM »
Zax, I have noticed the profiles in my new update to u they are all marked default and I am trying to figure out how to set them up but I am having no luck at finding any information on how to do it or figure it out. They do set it back to oem settings. Is this active yet or something that is coming?

General Discussion / X & Y Axis not same
« on: June 23, 2016, 07:47:11 PM »
I am sure I have missed finding how to set this. If I move my X axis 100mm it is exactly 100mm but when I use manual control to move the Y axis 100mm it actually moves 300mm. how do I correct this. I am using the r version of T2.

General Discussion / Up and running
« on: June 22, 2016, 06:29:39 PM »
My Banggood order arrived Monday but did not get a chance to put it together until today. Everything went reasonably good, a few screw measurements were off from the inventory sheet but no big deal it all worked out. I did not like the belt mounting of using a second screw to bind the belt to the bottom of the groove an easier way to do it is to run the belt through the slot in the mount about a inch and fold it over so the grooves lock into each other then push it back into the slot in the mount leaving a small loop sticking up which I put a piece of 1.75 filament from the 3d printer through then pulled the end of the belt through the groove letting the filament be the binding point. This makes a strong clean job and can be easily adjusted if needed. I never could get xloader to work so I ended up using benbox to load the j-tech firmware. T2 connected up and did a simple text print. I printed HELLO and all the letters looked ok except the O , it did not have smooth round shape , no smooth curves. This is all new to me so I am in the learning curve part. Everything is moving smooth and snug , no drivers are getting hot and motors are cool. The laser is good and tight (no slop at all and moves very smooth and quite ). Now I am going to try to move on to some photo etching.

General Discussion / New to Lasers
« on: June 17, 2016, 03:33:41 PM »
I have just ordered a 2500mw large bed from Banggood and hope it arrives soon. I have a FolgerTech 2020 3d printer and have noticed that alot of the parts like belts, drives, steppers and drivers are the same on the laser unit I have ordered. I have been trying to learn all I can on this site before it gets here. The question I have (probably crazy) is could the ramps 1.4 controller board that is used on this printer also be used on the laser. It is plugged directly into the mega2560 and can control 4 axis it also has limit switches which I have plenty of.

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