Offset Lines?
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Chris Johnson
- Posts: 3
- Joined: Tue Jul 07, 2020
- Location: Watertown; NY
- Country: United States
- Nickname: CJ
- Laser Machine Make or Type: Preenex Chinese Laser
- Laser Power: 50
- Laser Bed Size: 20” x 12”
- Home Position: TL
- RDWorks Version: V8.01.18
- Ruida Controller: RDC6442
- Windows Version: 10
- Accessories: Basic EBay included rotary. Red dot.
I am new to laser engraving and am having trouble getting uniform lines. Every other line seems to be offset. I am engraving 1/4in cast acrylic. Running the newest version of RDworks. 50w China Blue 500mms @ 15%. Thank you.
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sebastien laforet
- Posts: 143
- Joined: Wed Sep 07, 2016
- Location: Lyon
- Country: France
- Laser Machine Make or Type: bodor BCL0605MU
- Laser Power: 100W
- Laser Bed Size: 60*50cm
- Home Position: TR
- RDWorks Version: 8.01.19
- Windows Version: 7
you have set a too high speed and not set correctly the "reverse interval".
at 500mm/s, your tube has a 1ms response time, so this is 0.5mm. when scanning you engrave one line from left to right, then the head returns from right to left and engrave the line below.
with this settings, if the mainboard sends the start/stop signal exactly at the good moment, the LTR will "draw" 0.5mm more to the right, and when returning, you will miss also 0.5mm, and your lines will be "offset" like the schema below
so, you have to set the "reverse interval" for the speed, which will be used by the mainboard to correct your problem. obviously, the higher the speed, the more the reverse interval must be.
here is a complete tutorial on how and why set those parameters
https://cartonus.com/how-to-improve-eng ... r-machine/
at 500mm/s, your tube has a 1ms response time, so this is 0.5mm. when scanning you engrave one line from left to right, then the head returns from right to left and engrave the line below.
with this settings, if the mainboard sends the start/stop signal exactly at the good moment, the LTR will "draw" 0.5mm more to the right, and when returning, you will miss also 0.5mm, and your lines will be "offset" like the schema below
Code: Select all
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here is a complete tutorial on how and why set those parameters
https://cartonus.com/how-to-improve-eng ... r-machine/
Sébastien Laforet
machine : Bodor BCL-0605 (60x50) with 100W laser with TR origin.
Live in France
Primarily works laser for my wife (school teacher, so lots of boxes, letters, puzzles, ...) and miniature scenery (32mm scale : warmachine, infinity)
machine : Bodor BCL-0605 (60x50) with 100W laser with TR origin.
Live in France
Primarily works laser for my wife (school teacher, so lots of boxes, letters, puzzles, ...) and miniature scenery (32mm scale : warmachine, infinity)
-
Chris Johnson
- Posts: 3
- Joined: Tue Jul 07, 2020
- Location: Watertown; NY
- Country: United States
- Nickname: CJ
- Laser Machine Make or Type: Preenex Chinese Laser
- Laser Power: 50
- Laser Bed Size: 20” x 12”
- Home Position: TL
- RDWorks Version: V8.01.18
- Ruida Controller: RDC6442
- Windows Version: 10
- Accessories: Basic EBay included rotary. Red dot.
You were spot on thank you for the help! Still getting it tweaked in there, but already way better!sebastien laforet wrote: Sat Jul 25, 2020 you have set a too high speed and not set correctly the "reverse interval".
at 500mm/s, your tube has a 1ms response time, so this is 0.5mm. when scanning you engrave one line from left to right, then the head returns from right to left and engrave the line below.
with this settings, if the mainboard sends the start/stop signal exactly at the good moment, the LTR will "draw" 0.5mm more to the right, and when returning, you will miss also 0.5mm, and your lines will be "offset" like the schema below
so, you have to set the "reverse interval" for the speed, which will be used by the mainboard to correct your problem. obviously, the higher the speed, the more the reverse interval must be.Code: Select all
----- ----- ----- -----
here is a complete tutorial on how and why set those parameters
https://cartonus.com/how-to-improve-eng ... r-machine/
You do not have the required permissions to view the files attached to this post.