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Marino
(@marino)
Eminent Member
From 3.9 to 4S

It is possible to have a MK4S upgrade kit for a MK3.9 printer? As far as I understand the difference between 3.9 and 4 are only two precise 0.9° X,Y stepper motors (some 90 euros value) but I am not able to find them as spare parts.

Posted : 21/08/2024 2:22 pm
1 people liked
Nialija
(@nialija)
Member
RE: From 3.9 to 4S

can someone answer this please. should be easy enough for prusa staff to answer.

Posted : 25/11/2024 9:36 am
Jürgen62
(@jurgen62)
Active Member
RE: From 3.9 to 4S

Hello,

Is this answered, now. I have the same question.

 

Posted : 14/03/2025 2:47 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: From 3.9 to 4S

Have you tried Prusa chat?

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility.Location Halifax UK

Posted : 14/03/2025 4:36 pm
H
 H
(@h-4)
Active Member
RE: From 3.9 to 4S

You can buy the X and Y motors separately:

Stepper motor X-axis

Stepper motor Y-axis

Plus a MK4 to MK4S upgrade kit:

Original Prusa MK4 to MK4S upgrade kit

Posted by: @marino

It is possible to have a MK4S upgrade kit for a MK3.9 printer? As far as I understand the difference between 3.9 and 4 are only two precise 0.9° X,Y stepper motors (some 90 euros value) but I am not able to find them as spare parts.

 

Posted : 15/03/2025 6:57 pm
Marino
(@marino)
Eminent Member
Topic starter answered:
RE:

Sorry for the delay in answering you but I received the notification of your message only yesterday 😰 

At the end I solved the issue long ago doing what @h-4 suggested

 

This post was modified 6 months ago by Marino
Posted : 16/03/2025 10:18 am
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