Consistent doesn't mean accurate though. My understanding is your bed.g needs to probe points far enough that the rods are nearly horizontal to get accurate readings for rod length. I'd measure them out on a caliper and switch to 6 factor. I get that you didn't change that recently but perhaps the updated firmware treats it differently? We'll hear from dc. To be clear, I'm not proposing this as aby clearlynotstefan - Delta Machines
Try running 4 factor calibration instead and see how that turns out.by clearlynotstefan - Delta Machines
I just saw you're using 7 factor calibration. Why? You know how long your arms are I presume?by clearlynotstefan - Delta Machines
If so I suspect software. In my mind hardware problems should usually manifest themselves as errors at angles directly toward or away from towers. To move perfectly straight along X requires coordinated mistakes between multiple carriages, skipped steps etc on one motor wouldn't line up directly towards -X in my photo above, I THINK. Keeping in mind I'm just thinking this through theoretically aby clearlynotstefan - Delta Machines
I'm still thinking software or straight up tower lean. Anything like motors or steppers would be more erratic I think. Wait its going to -X exactly? Just to verify your axes are like mine .............................Ztower <---skew exacty this way? Xtower-----------------------------------------Ytowerby clearlynotstefan - Delta Machines
When viewed from above does the part skew dead straight toward that edge, does it wobble slightly on x/y too? Is it a consistent lean per layer? Basically the more consistently refined it is the less likely it is mechanical in my opinion. Also I'm not positive that test technically ruled out motor as you rotated the plugs but obviously not the motor, if that motor was shot itself, it's still hookby clearlynotstefan - Delta Machines
by clearlynotstefan - Developers
You've measured steps per mm per carriage right? Have you tried marking an area on the bed, doing a dry print and jogging back to the spot? I wonder if you're losing steps over the course of a run that isn't showing under simple carriage steps/mm runs. My guess is its on the tower opposite the -X direction. You could change your tool and stepper declarations around to use your E2 stepper to driveby clearlynotstefan - Delta Machines
next thing I'm going to try is the extruder suspended from a spare motor at the top of the frame and having it reel it in and out as Z goes up and down. it'd still have to have enough bowden to not get swayed side to side by x/y changes but you could theoretically not have to cover much Z travel at least.by clearlynotstefan - Delta Machines
Posting here cuz most relevant. David, I've read your posts re: Pei and your IR probe with the bbq paint. Sounds messy and I worry about the paint separating from the PEI under heat. What about a layer of blue tape under the pei but on top of the glass?by clearlynotstefan - Duet
Nothin? Somewhere is a file with those presets programmed in, surely there's a way to change them?by clearlynotstefan - Duet
My beefed up version of the clamp for haydn's effector, I was able to tighten mine completely and still wiggle the effector, it basically wasn't thick enough in the middle, I bright that part out a little and beefed up the screw holes so they didn't tear as easilyby clearlynotstefan - Delta Machines
DC should come yell at me for giving advice I'm not qualified to give, so I'll couch it in this. If I were you and truly stuck and with no more ideas, I'd pull my memory card, reset+erase and reflash the 1.16 onto the cleanly wiped duet, then go through bed/config/etc with a fine toothed comb for weirdness and try again lol.by clearlynotstefan - Delta Machines
Arm Length and Length of short sides? 40x40x40 what?by clearlynotstefan - Delta Machines
Damn I am so invested in this conundrum. Rotate the XYZ plugs and see if it leans in the same direction, then I'm out of ideas lol.by clearlynotstefan - Delta Machines
See edit above, sry about that. Also, do you use H parameters in your bed.h? More just a curiosity of mine, although I could see if something changed firmware/mechanically and those weren't valid anymore causing problems.by clearlynotstefan - Delta Machines
Try switching your motor plugs in different orders and see if the skew changes direction? Roll back to 1.16 and see if it fixes itself? Chance of motor failure itself? I'm just spitballing here, I'd be losing my mind in your position so trying to help. edit: saw you rolled back. The fact that didn't fix it is especially troubling. Did you post your bed/configh files for dc? maybe something screwby clearlynotstefan - Delta Machines
Weird, I guess wait till DC42 comes in with his duet wisdom. I'd try deleting the bed height file anyway, just in case the glitch is in the gcode not clearing that, but beyond that I've got nothing. Sorry.by clearlynotstefan - Delta Machines
Ruled out mechanical issues? loose bolts, leaning towers, loose carriages/rods/effector tilt? It'd be a weird coincidence coinciding with the firmware update, but stranger things have happened. Outside of not clearing a bum bed probing I can't think of what 1.17 has that 1.16 didn't that would screw your calibration by so much without changing bed.h and config.hby clearlynotstefan - Delta Machines
yeah that's a weird one indeed. Lemme now how the test goes. have you done any other prints since updating?by clearlynotstefan - Delta Machines
Make sure you're following whatever process the firmware calls for to clear the bed height calculation. That certainly sounds like a bad bed probing is saved somewhere and messing with things. I'm far from familiar with that process specifically, but I recall a Gcode existing to recall a saved heightmap file, make sure that's not floating around your config.h somewhere, alternatively I'd delete tby clearlynotstefan - Delta Machines
QuoteDragonFire I am very surprised that the original poster has not consulted with an international litigation expert, such as Baker-McKenzie, in this matter. They have a successful track record of suing unscrupulous British business enterprises on behalf of American clients who have suffered loss because of that unscrupulous and unlawful behaviour. you an associate?by clearlynotstefan - General
Is it possible to change the jog presets on the paneldue (and DWC for that matter) to something more like .01 .1 1 10?by clearlynotstefan - Duet
For the sake of thoroughness here it is http://www.digikey.com/product-detail/en/honeywell-sensing-and-productivity-solutions/2455RM-80980261/480-6535-ND/3526430 But I'm most confident in that pick.by clearlynotstefan - Safety & Best Practices
My concern is with the repeated and prolonged exposure to heat just under the trip value. Can these things function at 240 for perhaps years, and still trip at 260 for example.by clearlynotstefan - Safety & Best Practices
Thanks as always DC, So just to verify my plan: This fuse Fuse This thermo-switch switch This inlet Should work?by clearlynotstefan - Safety & Best Practices
Also, I'm looking for a fused+switch power inlet. The power cord will plug into it, then branch out to the DC power supply and bed. What amperage does that switched fused inlet need to be rated for?by clearlynotstefan - Safety & Best Practices
Also how'd you attach the thermal fuse inline? Solder? some kind of clip?by clearlynotstefan - Safety & Best Practices
Thanks! What size fuse should I use given the electronics mentioned above?by clearlynotstefan - Safety & Best Practices