Lines in print. Stepper resolution problem?

Electronics, Components etc
FranJans
Posts: 41
Joined: Wed Jul 19, 2017 10:35 am

Re: Lines in print. Stepper resolution problem?

Post by FranJans » Wed Sep 12, 2018 10:46 am

The support nozzle doesn't have a cooling system. That nozzle clogged rather fast.

I didn't have any programming skills as well. Have a look at this youtube channel. This guy has some videos how to setup Marlin.
https://www.youtube.com/channel/UCb8Rde ... ROUVg46h1A

Hereby all the pin layout information. This should be enough. :)
https://fransseo.home.xs4all.nl/Foto's/ ... cherm).pdf
https://fransseo.home.xs4all.nl/Foto's/ ... tplaat.jpg
https://fransseo.home.xs4all.nl/Foto's/ ... nector.jpg
https://fransseo.home.xs4all.nl/Foto's/ ... 0board.jpg

Be aware of the brown digital numbers. I vaguely remember those pins don't always work with Marlin.

Marnus
Posts: 12
Joined: Tue Sep 11, 2018 7:41 pm

Re: Lines in print. Stepper resolution problem?

Post by Marnus » Thu Sep 13, 2018 1:57 pm

Thank You so much
I appreciate it a lot

FranJans
Posts: 41
Joined: Wed Jul 19, 2017 10:35 am

Re: Lines in print. Stepper resolution problem?

Post by FranJans » Sat Sep 15, 2018 10:24 am

Your welcome!
Please let us know your progress with the printer. I am always looking for improvements for my own printer. :)

Marnus
Posts: 12
Joined: Tue Sep 11, 2018 7:41 pm

Re: Lines in print. Stepper resolution problem?

Post by Marnus » Wed Oct 17, 2018 10:07 pm

Did you solve your lines issue? If not, it must be your stepper drivers or Z feed rate. I took a week and rebuild this printer with auto leveling (probe) and ramps/arduino setup and have received perfect results in return.

FranJans
Posts: 41
Joined: Wed Jul 19, 2017 10:35 am

Re: Lines in print. Stepper resolution problem?

Post by FranJans » Thu Oct 18, 2018 5:03 pm

No, I haven't solved the issue. I blame the Z-axis screw. Why would the Z axis feed rate cause this kind of problem?

Marnus
Posts: 12
Joined: Tue Sep 11, 2018 7:41 pm

Re: Lines in print. Stepper resolution problem?

Post by Marnus » Wed Nov 07, 2018 4:13 pm

Hi
Not sure the problem.
I Have crasy backlash on both axis XY. Changed belts but no luck. Do you have any suggestion for marlin backlash compensation and how to add it ?

FranJans
Posts: 41
Joined: Wed Jul 19, 2017 10:35 am

Re: Lines in print. Stepper resolution problem?

Post by FranJans » Wed Nov 07, 2018 4:21 pm

The improvements I made to the X and Y axis:
- Replaced the original belts with belts with steel cords. These are the stiffest belt types
- Instead of ball bearing they used plain bearings. Replacing the plain bearings at those points for ball bearings is essential.
- Changing some of the rods is also essential. Running linear ball bearings on aluminium rods is not a good idea

What have you done already?

Marnus
Posts: 12
Joined: Tue Sep 11, 2018 7:41 pm

Re: Lines in print. Stepper resolution problem?

Post by Marnus » Wed Nov 07, 2018 4:33 pm

1. Changed the 2 rods to stainless, but still have the bushings and aluminium rods on the sides.
2. Changed all belts to GT2
3. Adjusted stepper drivers

Marnus
Posts: 12
Joined: Tue Sep 11, 2018 7:41 pm

Re: Lines in print. Stepper resolution problem?

Post by Marnus » Wed Nov 07, 2018 4:34 pm

but I havent changed the 4 bearing in the head

FranJans
Posts: 41
Joined: Wed Jul 19, 2017 10:35 am

Re: Lines in print. Stepper resolution problem?

Post by FranJans » Wed Nov 07, 2018 4:37 pm

Here is a picture of a part of my XY system. You can clearly see the ball bearing. Do you still have the original plain bearings at this location?
https://fransseo.home.xs4all.nl/Foto's/ ... /XY/46.jpg

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