Board connections mixed up

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_kaktus_
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Re: Board connections mixed up

Post by _kaktus_ » Tue Jan 22, 2019 2:08 am

;)

You are right.
The right side jams by blocking the motor.
On the forum I help to use the rod, I don't give fish.
Geeetech Prusa I3 M201 Dual extruder Mixcolor 3D printer, bought 2017-12-19, already built, in the cognitive and improvement phase
Geeetech filament, ABS only
Geeetech 3D WiFi Module for 3D Printer, bought 2018-04-15, He got a new life, and still lies in a drawer.
Positively frenzied customer of Getech Technology.

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chrisnasulea
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Re: Board connections mixed up

Post by chrisnasulea » Tue Jan 22, 2019 2:35 am

Well, have you ever seen this problem before?

What should I try?

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_kaktus_
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Re: Board connections mixed up

Post by _kaktus_ » Tue Jan 22, 2019 2:57 am

Hi.
;)

In my opinion, this problem must be solved by every owner of a DIY printer.
For a good start, take a look at it: Z axis
On the forum I help to use the rod, I don't give fish.
Geeetech Prusa I3 M201 Dual extruder Mixcolor 3D printer, bought 2017-12-19, already built, in the cognitive and improvement phase
Geeetech filament, ABS only
Geeetech 3D WiFi Module for 3D Printer, bought 2018-04-15, He got a new life, and still lies in a drawer.
Positively frenzied customer of Getech Technology.

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chrisnasulea
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Re: Board connections mixed up

Post by chrisnasulea » Tue Jan 22, 2019 3:07 am

Jesus Christ! I had no idea it would be such a pain to switch from a stock printer to a DIY one!

Come to think about it, it did take some doing when I installed the big bronze nut for the left threaded rod as the screw holes on the mounting bracket did not align properly with the ones on the bronze nut.

I don't think I've got the skills or the time to get this to work. I've already put in about 25 hours of work trying to get this thing to function.

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Re: Board connections mixed up

Post by _kaktus_ » Tue Jan 22, 2019 3:59 am

:D

And I think you will run it successfully. All you need to do is.
;)
On the forum I help to use the rod, I don't give fish.
Geeetech Prusa I3 M201 Dual extruder Mixcolor 3D printer, bought 2017-12-19, already built, in the cognitive and improvement phase
Geeetech filament, ABS only
Geeetech 3D WiFi Module for 3D Printer, bought 2018-04-15, He got a new life, and still lies in a drawer.
Positively frenzied customer of Getech Technology.

Tparent
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Re: Board connections mixed up

Post by Tparent » Sun Jan 27, 2019 3:27 am

You should check by hand (turning clockwize) if the axis / thread are free and doesn't have blocking section.

Lubricating the top thread guide could help

Unscrewing slightly the brass thread help too.

Increasing the Voltage is also one of the option (turning clockwier the potentiometer at the side of the screwing +/- connector on the PSU.

Z motor are not very powerful especially in a configuration were you need to lift off 2 x extruders. Fine tuning is therefore recommended.

If mecanically, you have the feeling that you could not do better, changing the Z acceleration parameter and speed could also improve the situation

Thierry
i3 B + i3 C + i3 M201 + A10 + A10m + A30
(+3 x Kossel)
Mostly PLA

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chrisnasulea
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Re: Board connections mixed up

Post by chrisnasulea » Mon Jan 28, 2019 1:15 am

Hey Thierry,

Thank you for all those ideas. I had already unscrewed the brass thread by about 1mm on both sides. That still didn't fix it. It turns out that the Z axis started to operate better, maybe even normally, when I unscrewed the bearing for the left smooth rod by about .5mm. The metal mounting plate is crooked and it was forcing the bearing to sit at a slight angle from the rod.

I successfully printed one correct layer of PLA!!!

Now I have to figure out why the next layer started about 2mm above the print bed. There's probably already some material on calibration here on the forum.

And, of course thank you, _kaktus_ for all your help so far and for the encouragement. The amount of time I had to spend getting this far was pretty big but I do feel strangely accomplished somehow. ;)

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Re: Board connections mixed up

Post by _kaktus_ » Mon Jan 28, 2019 2:18 am

:mrgreen:
For every beginner, this is a real challenge. :roll:
If you encounter a problem and can't solve it on your own, ask boldly.
You are a kind gentleman and I think that someone will always help you.
On the forum I help to use the rod, I don't give fish.
Geeetech Prusa I3 M201 Dual extruder Mixcolor 3D printer, bought 2017-12-19, already built, in the cognitive and improvement phase
Geeetech filament, ABS only
Geeetech 3D WiFi Module for 3D Printer, bought 2018-04-15, He got a new life, and still lies in a drawer.
Positively frenzied customer of Getech Technology.

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chrisnasulea
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Re: Board connections mixed up

Post by chrisnasulea » Mon Jan 28, 2019 5:00 am

Ok then, boldly:

How do I adjust the actual height of a layer so it matches the 0.2mm set in Repetier?

Reflash the firmware?
Use a screwdriver on the z axis stepstick?
Some setting adjustments in Repetier?

Thank you!

Tparent
Posts: 39
Joined: Sun Sep 30, 2018 3:54 pm

Re: Board connections mixed up

Post by Tparent » Mon Jan 28, 2019 5:09 am

Hi,

Just print the test cube which is 20mm tall.

In the menu / motion / you should have an item z steps (depending of fw version).

Apply a rule of 3 : e.g in the meny zstep =400 and the print is only 18mm high, it means thqt the correct zstep should be increased to = 400 * 20/18 = 444

Don't forget to save/store your value

Hope it helps
i3 B + i3 C + i3 M201 + A10 + A10m + A30
(+3 x Kossel)
Mostly PLA

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