@t3p3tony I'm getting one e-mail now. All is good. Best regards.

@Norder Oh thank you! This is very good and even easier than picking a scrollbar (if one existed). Because normally I click a scrollbar before using arrow keys I didn't even think to try this because said scrollbar didn't exist. Your suggestion is quite perfect - thank you again.

In this case the idiot is me, and I have a lot of very basic questions; @Phaedrux has graciously suggested I start a new thread after he and others answered another question I had on a different topic before the discussion turned to firmware. I hope to be able to learn how to upgrade firmware so I can maintain my controller board but also hope someone else can benefit from this.

I read through some of the details of the differences in newer versus older firmware and quickly became overwhelmed since I don't understand much of what was written. I hope to be able to get through the process without needing to become an expert in GPIO pins. A friend set up my machine initially but has since moved so I need to learn how to manage the firmware upgrade process myself.

A possibly complicating factor is I have a disability so if I need to do physical operations on the printer I could be slow in getting those done since I'll need to ask for help. My apologies in advance.

What I've done so far:

1. Removed the Duet MicroSD card from the Duet and copied the files to my Windows PC. Put the card back in the Duet.

2. Run M115 at the Console which returned the following in my case:

FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.04 ELECTRONICS: Duet Ethernet 1.02 or later FIRMWARE_DATE: 2019-11-01b1

3. Downloaded my current config file from the DWC ('config - current.json' [attached]) and ran the the RepRapFirmware Configuration Tool using the current config file to generate a new one ('config - new.json' [attached]).

My machine has a BLTouch (with a broken probing pin) attached but I don't use it - and don't want to use it - so chose 'No Z Probe' in 'Probe Type'. Otherwise I changed very little from the values that populated the form fields.

I ran 'config - current.json' against 'config - current.json' in a file compare program and observed the few changes I made within the RepRapFirmware Configuration Tool.

@Phaedrux mentioned rebooting after certain operations: how do I reboot the Duet board? From the DWC? Do I simply press 'Emergency Stop'?

What do I need to do next? Have I backed up the appropriate files? Do I need to make more preparations?

Thank you!

Duet Web Control 2.1.7
FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.04 ELECTRONICS: Duet Ethernet 1.02 or later FIRMWARE_DATE: 2019-11-01b1
Custom Cartesian machine

config - current.json
config - new.json

homex.g
homey.g
homez.g
homeall.g

@Phaedrux Thank you! I will get started soon.

@Phaedrux Ah! OK, this is starting to make a little sense. Now I am getting intrigued and would like to upgrade the firmware so my machine would the have the newest version of firmware and DWC and learn to how to do it.

Because this is off-topic from the pressure advance question should I do as you suggested and start a new thread? I really appreciate you being willing to help me. I'm sure if I can learn, anyone could and such a thread might be useful to others.

@Phaedrux Thanks! I'll read the sources you suggest.

So this is incremental upgrade method is used because the firmware is so old? But you don't recommend I do that?

I should use the configurator and skip the above steps?

I'm wondering if I could use a file compare tool (I use Beyond Compare) to look inside new versus old files? That might help with finding settings that need to move over?

I have a disability so will have to wait for someone to help me remove/re-insert the MicroSD card so I can backup my current config.

@Phaedrux Thanks a lot! I'd really appreciate help with upgrading the firmware. I'll look into the procedure and then likely make a post with some questions.

I printed this shape at 60mm/sec and manually sent codes from M572 D0 S0.025 to M572 D0 S0.085. I don't see any difference in the seam.

@Phaedrux I'm clueless and not sure I could upgrade it without goofing something up. My friend set up my Duet and has moved away so I'm still using this. It's been working so I haven't needed to upgrade so far but it seems I should learn how.

This is the result of the pressure advance test. I see no variation. Maybe my firmware is too old for this script to work?

@oliof Thank you. My firmware is 2.04 (2019-11-01b1) so am not sure if it can work. I ran the print but could see no variance in the pattern. I used a natural PLA because that was in the machine so couldn't get a decent picture. I'll change to an opaque filament and run it again and post a picture.

Well, I've run the g-code numerous times with small to extreme levels of pressure advance to no effect. I've put a line in my filament g-code with no effect. I give up for now.

@jay_s_uk Thank you. I'll run through this again using D0.