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How to assembly right?  

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PrusaPrinters profile
(@prusaprinters-profile)
Trusted Member
How to assembly right?

Hi
I am on step 19: https://help.prusa3d.com/en/guide/2-y-axis-assembly_165795

Some screw are longer and some shorter are that on purpose?
What are the right one?
Thanks!

Posted : 27/01/2021 2:56 pm
RH_Dreambox
(@rh_dreambox)
Prominent Member
RE: How to assembly right?

The correct screw is indicated with dimension and length in the text next to the image. Just follow the instructions and it will be right.
If you select a screw that is too long, it may cause problems if it collides with other parts of the printer.

Bear MK3 with Bondtech extruder...
Posted : 27/01/2021 4:00 pm
PrusaPrinters profile
(@prusaprinters-profile)
Trusted Member
Topic starter answered:
RE: How to assembly right?

so how to know which one i should choose from?
the page is not that good when it come to such thinks.

Posted : 27/01/2021 7:46 pm
cwbullet
(@cwbullet)
Illustrious Member
RE: How to assembly right?

@prusaprinters-profile

Use a ruler or micrometer and choose the screw based on the deminsions.  The instuctions are quite specific and you cna measure them to determine which ones to use.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 27/01/2021 9:02 pm
Cynan
(@cynan)
Trusted Member
RE: How to assembly right?

There should also be a stocker on the front of the bag that the screws came showing the screw sizes. Those images are actual size. Place the screws next to those images to work out which are which.

Posted : 30/01/2021 8:55 am
PrusaPrinters profile
(@prusaprinters-profile)
Trusted Member
Topic starter answered:
RE: How to assembly right?

I am damn pissed! I try over 1h to assembly that sshhhttt....

https://help.prusa3d.com/de/guide/2-zusammenbau-der-y-achse_165798

Stepp 34

Its impossible to mount it. The Belt is way to short!

Posted : 05/02/2021 9:59 pm
karl-herbert
(@karl-herbert)
Illustrious Member
RE: How to assembly right?

@prusaprinters-profile

The Y-axis belt should be approx. 650-660mm long. On my MK3 I had to cut off a few cm. I think Prusa has supplied you with a too short part -> Prusachat or, if it should go faster, buy it here -> Gates GT2 6mm

 
Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen....
Posted : 05/02/2021 10:18 pm
Cynan
(@cynan)
Trusted Member
RE: How to assembly right?

One of the belts is longer than the other. Have you used the right one ?

Posted : 05/02/2021 10:31 pm
PrusaPrinters profile
(@prusaprinters-profile)
Trusted Member
Topic starter answered:
RE: How to assembly right?

I use the "Belt Y".

Posted : 07/02/2021 8:33 am
cwbullet
(@cwbullet)
Illustrious Member
RE: How to assembly right?

I wonder it you got the wrong belt.  It took some finagling but I go it to fit.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 07/02/2021 3:20 pm
karl-herbert
(@karl-herbert)
Illustrious Member
RE: How to assembly right?

@prusaprinters-profile

Too short belt can sometimes happen, but what the heck. I would report this to Prusa! Just log in with your Prusa account and select the eshop. After a few seconds the chat window should appear on the lower right corner. If the chat window does not open, disable a possibly activated adblocker or try another browser.

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen....
Posted : 07/02/2021 4:33 pm
cwbullet
(@cwbullet)
Illustrious Member
RE: How to assembly right?

@karl-herbert

Concur.  Complaining on the forum will not get you what you want.  It might get you an answer, but a replacement will have to come from chat.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 07/02/2021 11:48 pm
PrusaPrinters profile
(@prusaprinters-profile)
Trusted Member
Topic starter answered:
...

Hey everyone!
Sadly I dont have to mode to finish the build. Is there someone who want help me via Skype to get them ready?
Thanks

Posted : 04/10/2021 3:53 pm
Dan Rogers
(@dan-rogers)
Noble Member
Belt length depends on the item being assembled properly

I would not let someone who cannot determine the difference between two screws assemble my printer.  Perhaps you need more practice with mechanical assembly.  Given you were not able to figure out which screws were which, I'm assuming the assembly is going poorly and different parts are being used than were intended per step (even though the step-bagging makes this difficult, some parts look similar across steps) ..  If the wrong parts are being used for getting the Y axis ready, the belt has no chance of being able to fit.  

Posted : 05/10/2021 12:43 pm
PrusaPrinters profile
(@prusaprinters-profile)
Trusted Member
Topic starter answered:
....

Well I have some problem with the eye sight.

Posted : 06/10/2021 5:25 pm
Dan Rogers
(@dan-rogers)
Noble Member
It's probably the correct belt

Things that impact belt length at the final step are inserting the belt at the first step.  Getting the belt carriage on backwards will also create misfit issues.  That's an easy one to mix up.  The belt provided on both of my MK3S builds was JUST ENOUGH - so you have to be pretty precise and follow the pictures in the on-line assembly manual very closely.  While I appreciate that someone with limited eyesight would want to be able to build their printer un-aided, it's a pretty expensive project to have to not be able to get it built.  I'd suggest getting a mechanically inclined, detail oriented person to assist if you can.

 

Posted : 07/10/2021 5:01 am
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