Problem with mesh compensation

tecno

Sofar I have been printing one-off parts but now I would like to print parts in batches and now I have problems.

This is what happends

So I think mesh compensation is not working?

PCR

@tecno Please post config.g

tecno

@pcr
config (2).g

; bed.g

;G28 ; home
M561 ; clear any bed transform

M671 X -45:445 Y 200:200 S6

G30 P0 X5 Y200 Z-99999 ; probe near a leadscrew
G30 P1 X350 Y200 Z-99999 S-2; probe near a leadscrew calibrate 2 motors max 3mm

G29 ; probe the bed and enable compensation

JoergS5

@tecno I would check first that all objects are leveled to Z0 (start at z=0), because it's strange that 4 objects are printed correctly and completely, and the other objects not even partly.

tecno

@joergs5
All good from S3D. Prining but birdsnest as the bed is not compensated as I see it.

PCR

M208 X0 Y0 Z-2 S1

tecno

@pcr

I see the problem I have now. Started up with new setting now, so I'll be back

Thanks PCR

tecno

Looks like it is working OK now.

Thanks again for lending out your eyes

Blacksheep99

@tecno your mesh looks a bit odd to me with the two 'pits'. Does that represent the bed or something within the gantry?

tecno

@blacksheep99

Bed, unfortunately Chiron's beds are too thin and warp easily. This is my second bed, got the replaced on warranty.

No longer I use the original glasbed, now PRIMACREATOR FLEXPLATE-POWDER COATED PEI.
Printing PETG on backside with gluestick, sticks way too good on PEI.

tecno

@blacksheep99 said in Problem with mesh compensation:

@tecno your mesh looks a bit odd to me with the two 'pits'. Does that represent the bed or something within the gantry?

Re pits. My theory is that my printsurface with glue is not optimal for IR probe so those pits may very well be reflections of said combination.

Blacksheep99

@tecno sounds like you’ve well versed in the challenges of your printer then. Hopefully your current prints come out well

tecno

@blacksheep99
Trying my best to get a grip of things around my toys

Now in the morning print is at 75%, so I am pleased.

tecno

Well print time from S3D said 13h24 and just finished at approx 24h.

Issue with X axis belt tension, this is a mofified Chiron with linear guides and used parts from Thingiverse that apparently are not up to the task as X axis motor gets hot and belt slacks as PETG part gets warm.

Back to the drawingboard
Fix X axis and reprint parts.

tecno

X axis fixed and a testprint on its way. Will start a small batch over night print.

Looking very good.