CNC cutter

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Hans van Veldhuizen

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Jun 22, 2025, 3:19:33 AMJun 22
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Hello everyone,
In my pantry there are enough parts to make an xy engraving machine. I have heard of CNC control but I know nothing about it. Has anyone ever made something like this with JAL or knows where I could find something? The Arduino world is full of them but despite a few UNOs somewhere in a lost box I do not feel like delving into this world. I will remain loyal to JAL.
Thanks in advance
Greetings
Hans

Hans van Veldhuizen

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Jun 23, 2025, 1:08:05 PMJun 23
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It is progressing. The laser has been tested and both walkers can be moved with serial commands. Now we just have to wait for long belts and a few light cells.
Now we have to see if I can somehow translate a picture into serial commands.
Does anyone have an idea???X_Y_laser.jpg

Op zondag 22 juni 2025 om 09:19:33 UTC+2 schreef Hans van Veldhuizen:

vasi vasi

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Jun 24, 2025, 1:05:35 AMJun 24
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Vasi

Hans van Veldhuizen

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Jun 24, 2025, 5:09:43 AMJun 24
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Hello Vasi,
Thanks for your response. I tested the program and it makes a Gcode file. Now I have to figure out how to convert the data to my construction.
Gcode is brand new for mee !!!!
greetings
Hans
Op dinsdag 24 juni 2025 om 07:05:35 UTC+2 schreef vasi vasi:

vasi vasi

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Jun 24, 2025, 5:19:11 AMJun 24
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G-Code is a list of commands for machines with numeric command. Is a list of "orders": do this, do that... :D
But the parameters are specific to your machine. By example, you need to know how many steps are required on an axis to move over a distance of one inch or one centimeter (or even a millimeter)

Look for a g-code manual to see what each command does and what the parameter means...
If it says that the x  axis must move 300 millimeters in a certain direction (plus or minus), you multiply that with the number of steps per millimeter... and do the move...

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Vasi

vasi vasi

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Jun 24, 2025, 5:21:27 AMJun 24
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Here is a program that interprets gcode https://github.com/cncjs/gcode-interpreter
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Hans van Veldhuizen

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Jun 24, 2025, 7:08:48 AMJun 24
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Hello Vasi,
I am studying bravely! Unfortunately I can't do anything with the link to Github because I have no idea how to use it. My knowledge and frame of mind are limited
Anyway, it's all fun and exciting
greetings
Hans

Op dinsdag 24 juni 2025 om 11:21:27 UTC+2 schreef vasi vasi:

vasi vasi

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Jun 24, 2025, 7:31:59 AMJun 24
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See if this is ok for you


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Hans van Veldhuizen

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Jun 24, 2025, 1:56:52 PMJun 24
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great i have a lot to study now, thanks

Op dinsdag 24 juni 2025 om 13:31:59 UTC+2 schreef vasi vasi:

vasi vasi

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Jun 25, 2025, 9:02:37 AMJun 25
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Hans, it is still worth checking this github repo and youtube channel (of
Dirk Herrendoerfer), his work might inspire you...



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Hans van Veldhuizen

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Jun 25, 2025, 2:45:24 PMJun 25
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I am converting an old working BERTprint to Jallib. I now get no function after compiling without errors.
However, the warning:
signed/unsigned mismatch for:
center_pos = actual_toon_pos
What am I doing wrong ???

Op woensdag 25 juni 2025 om 15:02:37 UTC+2 schreef vasi vasi:

Hans van Veldhuizen

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Jul 1, 2025, 10:44:30 AMJul 1
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After a long search my problem appears to be in the update to windows 11. The comport that I always used now only works half. I can't find a solution for this
Am I the only one with this problem again ???
. Now just use the usb-rs232 cable
. The G-code file is easy to convert to a text file but now I'm looking for a SIMPLE terminal something that can send the file to my control with CT/RS. (with serial_hw_int_cts.jal)
A suggestion ???????????
greetings
hans

Op woensdag 25 juni 2025 om 20:45:24 UTC+2 schreef Hans van Veldhuizen:

Hans van Veldhuizen

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Jul 1, 2025, 11:04:45 AMJul 1
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Thanks William, the  Serial Port Monitor does it fine and easy. regards hans

Op dinsdag 1 juli 2025 om 16:44:30 UTC+2 schreef Hans van Veldhuizen:

Hans van Veldhuizen

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Jul 8, 2025, 2:57:17 PMJul 8
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Hello everyone,
The case works. ! Making a Gcode from a picture works fine with that program. The text file can easily be sent to my construction with the offered terminal program and the translation of it to the steppers and the laser goes flawlessly.
One problem, however, the power of the Chinese laser is very low and burning a small picture takes HOURS!!!
I will not buy a heavier laser anymore because then you can better buy ready-made things.
In the end it did not work out and I should have better investigated the capacity of the laser in advance.
Anyway, if something does not go the way you want then you have learned something.
 That is why I am now so terribly clever.
thanks again best JALJERS

Op dinsdag 1 juli 2025 om 17:04:45 UTC+2 schreef Hans van Veldhuizen:

Hans van Veldhuizen

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Jul 8, 2025, 3:02:21 PMJul 8
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Oh, and one more thing. I'm going to demolish the building again unless there is someone who wants everything from me (for free).

Op dinsdag 8 juli 2025 om 20:57:17 UTC+2 schreef Hans van Veldhuizen:

vasi vasi

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Jul 9, 2025, 3:13:21 PMJul 9
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Don't demolish the thing.... Change the head. Not yours :D replace the laser with an iron or something that uses an incandescent wire...

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Vasi

vasi vasi

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Jul 9, 2025, 3:16:13 PMJul 9
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If you need, take a pause, do a trip, but don't give up.
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vasi vasi

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Jul 9, 2025, 3:17:10 PMJul 9
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It is a success if it at least vaguely resembles the image you wanted to engrave.
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Hans van Veldhuizen

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Jul 10, 2025, 4:22:33 PMJul 10
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Dear Vasi Vasi,

I'm getting the impression that my toy workshop is starting to resemble the big IT world. Full of perfectly functioning components, but no idea what else to do with them.

 For me, it's best to just do nothing or find something else.

Professional IT people can't do this. They have to constantly come up with new ideas because they're paid to do so. They create impressive things without knowing if they're actually useful. Or add beautiful pictures of animated characters, like those giving a thumbs-up when I do something right.

The other day, I wanted to turn my phone off before bed as usual, but it wouldn't let me. It took me an hour to discover that the latest update had changed the on/off button's function, which I could reset through the settings.

Everything seems to be getting more and more complex. Troubleshooting involves turning the device off, unplugging it for a while, or disconnecting the battery. I experience this in the JAL world as well. I can't get a program that works perfectly according to its creator to work on a member of the same PIC family, despite the patient help of the original's developer.

This complexity also rages through the big IT world. The medical data from our doctor's office still can't be linked to that of the nearby hospital. A blood test from the doctor's office simply has to be repeated at the hospital, even though the analysis in both cases is done by the same laboratory.

There's an old story about a people who wanted to build a tower that would reach the heavens. It never came to be.

 In my French class, I learned the saying "C'est l'histoire qui se répète."

 But my teacher added: "Non, c'est l'homme."


Op woensdag 9 juli 2025 om 21:17:10 UTC+2 schreef vasi vasi:

Rob CJ

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Jul 11, 2025, 1:34:51 AMJul 11
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Hi Hans,

I did not follow the whole discussion but are you still having problems? If so what is it?

About complexity. With the introduction of AI it may seem that things become easier instead of more complex. However, I recently saw a result from an research that was done where they had two groups of students. One group was using chat GPT and the other group was not allowed to use chat GPT (only normal Google searching). After a few months they discovered that in te group of the students that used chat GPT, the cognitive and other brainfunctions declined (they becom dumber. 

So although you have a problem and you really need to think hard to solve it, keep on doing that to keep your brain fit.

Kind regards,

Rob

Van: jal...@googlegroups.com <jal...@googlegroups.com> namens Hans van Veldhuizen <hanz...@zeelandnet.nl>
Verzonden: donderdag 10 juli 2025 22:22
Aan: jallist <jal...@googlegroups.com>
Onderwerp: Re: [jallist] Re: CNC cutter
 

zet.weeh

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Jul 14, 2025, 10:08:56 AMJul 14
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Good Advice!

 

Peter

zet.weeh

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Jul 14, 2025, 10:12:06 AMJul 14
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I believe JAL-workers ore also philosophers.

 

Van: jal...@googlegroups.com [mailto:jal...@googlegroups.com] Namens Hans van Veldhuizen
Verzonden: donderdag 10 juli 2025 22:23
Aan: jallist <jal...@googlegroups.com>
Onderwerp: Re: [jallist] Re: CNC cutter

 

Dear Vasi Vasi,

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