LIN_ADVANCE = better extrusion control

Discussions about ideaMaker and other printing software.
jvingaard
Posts: 40
Joined: Sat Nov 12, 2016 10:01 am

Re: LIN_ADVANCE = better extrusion control

Postby jvingaard » Tue Jan 08, 2019 8:28 pm

What is the latest firmware w/bltouch from ABH?

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JohnSays
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Joined: Tue Apr 26, 2016 2:42 pm
Location: Saint Petersburg, FL

Re: LIN_ADVANCE = better extrusion control

Postby JohnSays » Wed Jan 09, 2019 1:57 am

mb300sd wrote:FYI, 1.1.9ABH also has Junction Deviation enabled, which replaces the old Jerk settings. The default is 0.02. Try 0.05, and WOW I can print fast. Set with M205 J0.05. Adjust it during the middle of a print to really see the difference. (SSH in, "echo M205 J0.05 > /dev/ttyACM0")

Edit:
0.08, not noticing any difference in surface finish, but my whole machine vibrates the way it used to on 1.1.6, and layer times cut to 1/3.


I've tried this and have not yet seen any difference. Is there a switch to set in the code first and then recompile?
- John
2 Raise3D N2 Duals, V2 nozzles, Bondtech BMGs, adjustable table, Panucatt SD2224 drivers, run-out sensor, thermal overload protection resistors on motion controller board, Firmware 1.1.8ABH - with Lin_Advance, Palette+

mb300sd
Posts: 71
Joined: Fri Mar 30, 2018 7:22 pm

Re: LIN_ADVANCE = better extrusion control

Postby mb300sd » Wed Jan 09, 2019 7:31 pm

JohnSays wrote:
mb300sd wrote:FYI, 1.1.9ABH also has Junction Deviation enabled, which replaces the old Jerk settings. The default is 0.02. Try 0.05, and WOW I can print fast. Set with M205 J0.05. Adjust it during the middle of a print to really see the difference. (SSH in, "echo M205 J0.05 > /dev/ttyACM0")

Edit:
0.08, not noticing any difference in surface finish, but my whole machine vibrates the way it used to on 1.1.6, and layer times cut to 1/3.


I've tried this and have not yet seen any difference. Is there a switch to set in the code first and then recompile?


You should be able to change it in one of the configuration headers. Search for 0.02

The SSH method definitely works though, might depend in your other settings how much it effects print speed. You can send any gcode you want using SSH, even during a print. I've found it really useful for adjusting things that the touchscreen can't.

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JohnSays
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Re: LIN_ADVANCE = better extrusion control

Postby JohnSays » Wed Jan 09, 2019 7:50 pm

mb300sd wrote:
JohnSays wrote:
mb300sd wrote:You should be able to change it in one of the configuration headers. Search for 0.02

The SSH method definitely works though, might depend in your other settings how much it effects print speed. You can send any gcode you want using SSH, even during a print. I've found it really useful for adjusting things that the touchscreen can't.


Thanks for the response.

Are you saying that I should change the setting in the config file and not to use the M205 J0.05 in the initialization code? I can do that if needed.

I have never tried to SSH in. My printer is on 192.168.0.19. What commands would I use to send and receive data? Better yet, is there a thread on doing this?
- John
2 Raise3D N2 Duals, V2 nozzles, Bondtech BMGs, adjustable table, Panucatt SD2224 drivers, run-out sensor, thermal overload protection resistors on motion controller board, Firmware 1.1.8ABH - with Lin_Advance, Palette+

mb300sd
Posts: 71
Joined: Fri Mar 30, 2018 7:22 pm

Re: LIN_ADVANCE = better extrusion control

Postby mb300sd » Wed Jan 09, 2019 10:10 pm

JohnSays wrote:
mb300sd wrote:
JohnSays wrote:


Thanks for the response.

Are you saying that I should change the setting in the config file and not to use the M205 J0.05 in the initialization code? I can do that if needed.

I have never tried to SSH in. My printer is on 192.168.0.19. What commands would I use to send and receive data? Better yet, is there a thread on doing this?


Initialization code should work fine.

You can't receive anything, since the touchscreen app takes control of the serial port, but linux allows another app to write to it.

echo GCODE_HERE > /dev/ttyACM0

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JohnSays
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Re: LIN_ADVANCE = better extrusion control

Postby JohnSays » Wed Jan 09, 2019 10:59 pm

Thanks!
- John
2 Raise3D N2 Duals, V2 nozzles, Bondtech BMGs, adjustable table, Panucatt SD2224 drivers, run-out sensor, thermal overload protection resistors on motion controller board, Firmware 1.1.8ABH - with Lin_Advance, Palette+

jvingaard
Posts: 40
Joined: Sat Nov 12, 2016 10:01 am

Re: LIN_ADVANCE = better extrusion control

Postby jvingaard » Fri Jan 11, 2019 6:04 am

i am using 1.1.8ABH firmware. do i need to enable FRS in the firmware, for it to work?


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