Smart effector first layer issues

Carlo

Long shot...
Can you measure the carriage spacing and then effector spacing of the ball joints

or unclip the effector and line it up it to the carriage on all towers ?

Carlo

If they are fine
Heat bed to 60c 130c hotend home then calibrate Z0.1 see if it goes to that position after calibration.

Carlo

@Carlo
Not my creation thanks to another user
macro name Prime nozzle also you can add to your start gcode for pla or change the temps for any filament S70 S220 in slicer
So home then delta calibrate first, then run the this macro
G90
M83
M207
T0
M116
G29 S1
M190 S70
M104 S220
M109 S220
; Draw arc to prime the nozzle between 6PM and 9PM on the bed edge

G1 X0 Y-175 Z0.25 F6000

G2 X-175 Y0 I0 J175 E30 F1500

G1 X-174.52

G3 X0 Y-174.52 I174.52 J0 E28 F1500

G1 Z1 E-0.25 F6000

Lakeman

Measured the spacing on the carriages and on the effector: Effector 64.6mm carriges 64.1mm
So there is room for improvement..

droftarts

@Lakeman On my delta, I've always had issues with mesh calibration. I only use it to check the bed level, then turn it off for printing. When you're doing the delta calibration, is it turned off? Check there's an M561 and G29 S2 at the beginning of bed.g (assuming that's where you delta calibration is), then if you do a mesh calibration afterwards, cancel it before trying to print.

Ian

Carlo

@Lakeman

Did you change your belts? or tighten them as adjuster is touching the pulley plate so no more adjustment available mine have 15mm ish between them

Lakeman

It seems to be making the same mistake with or without mesh, I just tried a very fine mesh and without after with no succes
But maybe I have to fix the 0.5 mm in the spacing...

Carlo

@Lakeman
would be good to rule it out .5mm when your talking 0.12 -0.3mm layers?

Lakeman

I think ruling it out is the best plan, just not entirely sure if it will work if I just scale the printed parts a bit and hopefully end up exactly 0.5mm wider

Lakeman

I am printing a 0.2mm first layer by the way and I do not know how much effect spacing between the balls has on the height,

Carlo

@Lakeman

have you got the link to the ones you printed as there are afew and I found these to be best
Used with the PCB ball mount supplied with the smart effector
anycubic_predator_carriage_SE-PCB_withoutFE.stl

Carlo

@Carlo

Link here for flying extruder version also
https://www.thingiverse.com/thing:356764
using the pcb supplied guarantees perfect spacing

Lakeman

Haydn_Carriage_Adapter_Remix_v4.stl
This is what I used, I will try the stl file you send me, probebly the safest option to use the pcb's. Your second link goes to a tray, not sure what to do with that

Carlo

@Lakeman

Make sure that the spacing between each pair of towers is the same at the top, the bottom, and half way between top and bottom from duets website

The spacing between the bearings at the top of a pair of rods must be exactly the same as the spacing between the bearings at the bottom

Carlo

@Lakeman

get the linked version with the flying extruder mounting holes easier to mount the extruder

Lakeman

Thanks, I print those and try again

Carlo

@Lakeman

One thing I did change on my bed was the standoffs under it the blue discs if you take 2 off and measure them mine were way way off in size each to each I replaced them with springs but that was after getting my setup sorted

Carlo

@Carlo

New link no idea why it went to a tray

https://www.thingiverse.com/thing:3567642

Lakeman

Hello, I tried printing the parts yesterday (small parts usually work after some fiddling) and halfway a belt snapt, thats what you get after to much tensioning for more precision... But anyway, I changed all the belts to new ones with a metal core which I had as spare, tensioned the same and printed the small parts again, which went easy somehow. So I tried to print the big part to be sure. Perfect first layer without a mesh, just after a quick delta calibration.
No idea what was wrong with the other belts, could not find any problems on them and the were installed correcly and tried several amounts of tension over the last year.
I will install the new mounts for the arms anyway to remove the 0.5mm, but they do not couse the first layer issue.
Thanks a lot for al the help, It was a hardware foult afterall, altough I am still not sure what was wrong with them.
The support on the forum is great, really thanks a lot.
Should I close the thread somehow to show it is fixed?

Veti

@Lakeman said in Smart effector first layer issues:

But anyway, I changed all the belts to new ones with a metal core

thats a big no no. steel belts do not like sharp turns like you have in a delta. they will break and cause problems.

here are some good belts
https://de.aliexpress.com/item/32853559638.html