Hi All,
Had to share this... So happy lol.

Lower tower test print was pre upgrade, current print is after upgrading.

VID_20210602_175413.mp4

Night and Day!

@jay_s_uk said in Coming soon: Accelerometer Support:

@nuramori on klipper its a run once and remove from the system thing until you change something.
not sure if it will be used in the same way here or not

My understanding is also that it's a run once to characterise the resonance of the printer.

Input shaping is an open loop approach as far as I understand.

However, the accelerometer needs to be rigidly secured to the print head to accurately measure the printers characteristics so a dedicated mount IMO is a good idea.

That's not to say we won't find other uses for an accelerometer in the the future of course!!

Hi Folks,
This is my polar printer, it's down for a bed bearing upgrade at the moment, but she's definitely running and the duet's working a treat.

Working volume is 570mm diameter by 1150mm tall.

Here's some footage of her in action...

https://youtu.be/nvOLMP2IJIU

The YouTube playlist for the build so far is here:

https://www.youtube.com/playlist?list=PLWjZVEdMv1BY82izahK45qKh-hp3NFkix

My channel is www.YouTube.com/CNCModellerUK

I'm hoping to come to TCT so will drop by the stall. If you want some better pictures just let me know!

Cheers
Barry M

@pietorque
Have you considered a duet3 + tool daughter board over can bus? Might make it all a duet based drop in solution for you.

@dc42 MQTT integration would be awesome... my home automation uses an mqtt broker and openhab so I could check print status securely anywhere via the openhab internet gateway and mobile app.

If I understand it correctly I believe the accelerometer is just a temporary fit of test instrumentation to gather the resonance data to set the relevant parameters. I don't think it's part of normal operation.

The multicopter uses the data to close a control loop which as I said I don't think is happening here.

@droftarts

OK so this is weird (and annoying I've lost hours to this fault), all I've done is checked the BLTouch and the signals from the duet with a servo tester and a servo respectively (as above), and now I've re-connected the BLtouch and everything works...

I guess I might have had a "sticky" BLTouch???!

Also, for checking probing I decided to use a sponge to help prevent crashes, works a treat would recommend!!

All the best,
Barry M

@rkaronde said in DWC status monitor only view?:

@cncmodeller You can also try the iOS app.

The app does not allow any actions so should help with the view only aspect.

https://apps.apple.com/gb/app/duet-app-control/id1548032260

Thanks, I've downloaded the same app for droid, looks good

@educatingsavvas said in Software bundle 3.3RC3 now available:

@phaedrux Thanks but I'm not sure yet. I'm planning to use 4 tools on my CNC machine. T0 - laser, T1 - Spindle Router (main tool), T2 - Pen Tool in Spindle, and T3 - Tangential Knife. I'm still getting my head around workflow, working out offsets and g-code generation for multiple tool jobs.

@EducatingSavvas If you're using fusion 360 for CAM you configure tool selection there and it can be different for each tool path in each setup. It's worth a look if you haven't already. I use it all the time.

@rilot said in Duet2 ethernet and 12864 display using ST7567:

@droftarts I'm using a Duet2Wifi and M150 results in a Command not supported error. This is with 3.2.2

Same here on Duet Ethernet... no baclight and M150 "Command Not Supported"

At least its working, I can now look at a custom menu set.

I built a little connector conversion board to address custom the loom requirements, see below.

Thanks for the help folks

Cheers
BPM

@dc42 Thanks for the direction... I'll pick it up once I've moved workshop, I've always fancied looking into custom kinematics and my gut says this is an easy place to begin.

@dc42 does RRF support the Maslow CNC router style kinematics? It's essentially what's been discussed here.

Been thinking about DIY building one of these for quite a while. Future larger workshop means it's a practical proposal.

https://youtu.be/y60q6U7NjTQ

@celulari
This is the app, after an initial look I also upgraded to the paid version.

https://play.google.com/store/apps/details?id=com.morganandwife.vibration

@dc42 said in Phone Accelerometer data and Input Shaping:

@cncmodeller IMO it's better to to a deliberate sharp movement, longer than the period of any resonance. See https://duet3d.dozuki.com/Wiki/Accelerometers#Section_Using_accelerometers but in your case I suggest G1 H2 Y moves covering about 90 degrees in place of the G1 moves in that example.

Looks like 18Hz it is then...! 60deg bed rotation move triggered from my 12864 display

Screenshot_2021-06-02-18-28-04-548_com.morganandwife.vibration.jpg

Thanks for the insights @dc42

@dc42 said in Phone Accelerometer data and Input Shaping:

@cncmodeller IMO it's better to to a deliberate sharp movement, longer than the period of any resonance. See https://duet3d.dozuki.com/Wiki/Accelerometers#Section_Using_accelerometers but in your case I suggest a G1 H2 Yxxx move covering about 90 degrees.

Thanks @dc42 , will do when this print has finished.

@dc42 It was printing my latest test print,

VID_20210602_175413.mp4

Hi All,
Had to share this... So happy lol.

Lower tower test print was pre upgrade, current print is after upgrading.

VID_20210602_175413.mp4

Night and Day!

Hi All,
I've found an droid app called Resonance, it records vibration data and then provides analysis.

I've put my phone on my bed and these are the results

I've plumped for 25Hz for my M593 F25, but I don't really know what I'm looking at.

Edit. It's a polar printer so X and y are components of the bed rotation.

Any thoughts?

Many thanks
Barry M

Thanks @giostark, that's great. In fact it's just the sort of thing I wanted to know. So I take it from that the bed.g holds the mesh point locations.

I'm printing on a mirror, on a flat bed levelled at 3 points, I just need to allow for inaccuracies in the bed plane.

Many thanks
Barry M

Hi All,
I'm sure there is a way to define a custom bed levelling grid, but I cant for the life of me figure out how. I just want to probe the circumference of my circular bed.

Any thoughts? I think I'm just missing something obvious... its late at night lol.

Cheers
Barry M