V minion Eva 3.0 sensorless homing problems

I have upgraded my minion with eva 3.0 with dual5015 fan duct now my printer is homing with the fan duct on the x motor mount and its printing to far right i would say 5 mm or something like that can anyone help me or say me the new x value for this problem
39 Replies
fair-rose
fair-rose2y ago
After you have homed the x axis and you move with the middle of the nozzle to the left side of the bed what is your motor position? Normally it must be 0. if not you must adjust your x minus in your printer.cfg. If you hit with your Toolhead the motor mount and your theoretical 0 is in the right side of the left side of your bed you must move with the motormount more to the left.
fair-rose
fair-rose2y ago
No description
fair-rose
fair-rose2y ago
You must adjust this value. In my case it mean if I hit the Endstop my x position is-3mm. So I must move +3mm to the right that my nozzle is in the 0 position of the bed.
adverse-sapphire
adverse-sapphire2y ago
im printing to much right
fair-rose
fair-rose2y ago
That is clear. But what is your motor position after you are homing and move your nozzle to the 0 of the bed
adverse-sapphire
adverse-sapphire2y ago
if i go to zero i have 6mm till the bed edge come
adverse-sapphire
adverse-sapphire2y ago
No description
fair-rose
fair-rose2y ago
Did you have space between Toolhead and were you hit the motormount
adverse-sapphire
adverse-sapphire2y ago
no the fan duct did hit the motor mount
fair-rose
fair-rose2y ago
So you must move the motormount to the left.
adverse-sapphire
adverse-sapphire2y ago
how much xD
fair-rose
fair-rose2y ago
The length what you need to come with the nozzle to 0 of the bed. I would say in you’re case 5mm or so. You are in front of the printer. Measure what you need and move the motormount. Loose the belt. Maybe you need a longer belt. But first try it
Helge Keck
Helge Keck2y ago
position_min: -5 endstop_position: -5 this means 5mm to the left try it out and retune it, its easy
fair-rose
fair-rose2y ago
He hits the motor mount with the fan duct in this position during the homing.
Helge Keck
Helge Keck2y ago
please show the end of the gantry / rail? maybe the whole gantry is on the wrong location you bump into the motor mount, but this should happen 1cm to the left of the bed
adverse-sapphire
adverse-sapphire2y ago
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Helge Keck
Helge Keck2y ago
move your motor mount closer to the spindelblock the gap is too wide
adverse-sapphire
adverse-sapphire2y ago
how much ?
Helge Keck
Helge Keck2y ago
one sec
adverse-sapphire
adverse-sapphire2y ago
and the rail too ?
Helge Keck
Helge Keck2y ago
Rat Rig
02. Rat Rig V-Minion
Step-by-step assembly guide for the Rat Rig V-Minion, a Cartesian DIY 3D Printer kit
Helge Keck
Helge Keck2y ago
the build guide explains it very detailed check your gantry position and the rail position
adverse-sapphire
adverse-sapphire2y ago
it should be flush to the z spindleblock right or 1 cm
Helge Keck
Helge Keck2y ago
read the documentation, its all there even with images
adverse-sapphire
adverse-sapphire2y ago
but no measure xD
Helge Keck
Helge Keck2y ago
No description
fair-rose
fair-rose2y ago
A little gap to the backlash nut that you can adjust this later is okay.
adverse-sapphire
adverse-sapphire2y ago
then i dont need a adjustmennt xD
adverse-sapphire
adverse-sapphire2y ago
But Here Its a tight fit
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fair-rose
fair-rose2y ago
Take a look on the picture what Helge had send you and what you have build.
adverse-sapphire
adverse-sapphire2y ago
yes i know but here im flush thats strange you know
fair-rose
fair-rose2y ago
Please re assemble your x axis like in the documentation. Then you would see It works
adverse-sapphire
adverse-sapphire2y ago
yes i do it tomorrow thanks for the help xD ive lossend all up and this cap is complette pressed xD
adverse-sapphire
adverse-sapphire2y ago
the linear rail is pushed under this right
Helge Keck
Helge Keck2y ago
@XXSniperViperXX continue here please
adverse-sapphire
adverse-sapphire2y ago
Thats now Zero there is Vitrine my Fan Duct the Motor
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adverse-sapphire
adverse-sapphire2y ago
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No description
fair-rose
fair-rose2y ago
Now it’s okay. Maybe if you want and your z axis is straight in line so that you don’t need to adjust the z axis you can move 3-4 mm with the motor mount to the anti backlash but. But I would say so it’s okay. For your case please check the 2 positions that Helge and I say to you yesterday. Set this to 0. position_min: 0 endstop_position: 0
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