Ultimaker uses functional, analytical and tracking cookies. Tracking cookies enhance your experience on our website and may also collect your personal data outside of Ultimaker websites. If you agree with the use of tracking cookies, click “I agree, continue browsing”. You can withdraw your consent at any time. If you do not consent with the use of tracking cookies, click “Refuse”. You can find more information about cookies on our Privacy and Cookie Policy page.
Bug: Offset (layer shift) between first and second layer when printing PLA + PVA
Posted
· Bug: Offset (layer shift) between first and second layer when printing PLA + PVA
90% of the time this is a loose pulley. First figure out if it slipped in X or Y. Then tighten all 6 pulleys (SIX - not four). on that axis. The most likely problem pulley is the one on the stepper. You should be able to get it with a long handled hex driver (it's okay to push the print head around to get access to the set screw).
Tighten the hell out of those pulleys. If you are using an L shaped allen wrench with the short arm for torque it should hurt your fingers a lot after. A lot. Tighten it so much you are scared. The steel shaft should be twisting slightly.
If you don't believe me you can mark the shaft and pulley with a sharpie such that after a layer shift you can see if you are right or I am right. Sometimes the problem is high friction or overheating stepper driver (is it above 20C in the room with the printer?) but overheating stepper driver problems usually occur after an hour of printing - not just at the start. Push the head around with your fingers to feel the friction. If one axis seems worse then oil it. Oil them anyway. Just a tiny bit of oil. Too much oil is bad. One drop on each of the 6 steel rods in the gantry. Any light oil is fine. Don't use WD40.
Link to post
Share on other sites
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Are you a startup using 3D printing? Perhaps you should continue reading...
Together with BASF we are launching the Forward AM Innovation Award - the very first global contest for startups developing new applications with 3D printing!
Why apply?
The winning startup will receive €100,000 in goods and services*, along with coaching and marketing exposure from top-notch leaders in the industry.
Who can apply?
Your startup creates products using Additive Manufacturing, is less than 5 years old, and has less than 50 employees. We are looking for 3D printing applications with a strong focus on innovation, sustainability and scalability.
Dental aligners, shoes, tools, automotive parts, music instruments, industrial tooling and molding, medical implants, sports equipment, toys, architecture, fashion, construction... all are welcome to join!
Do you have an innovative, sustainable and scalable idea that leverages the unique possibilities of 3D printing? Then it is time to apply!
More information can be found here.
Applications close on March 28th, 2021
* What does "in goods and services" mean?
The winner will be able to pick any item from the overall product and service portfolio of the sponsors, e.g. printers, materials, consulting, software... Choose whatever you need to accelerate your startup.
Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.
They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access.
Ready? Register your product here in just 60 seconds.
Recommended Posts
gr5 1,557
90% of the time this is a loose pulley. First figure out if it slipped in X or Y. Then tighten all 6 pulleys (SIX - not four). on that axis. The most likely problem pulley is the one on the stepper. You should be able to get it with a long handled hex driver (it's okay to push the print head around to get access to the set screw).
Tighten the hell out of those pulleys. If you are using an L shaped allen wrench with the short arm for torque it should hurt your fingers a lot after. A lot. Tighten it so much you are scared. The steel shaft should be twisting slightly.
If you don't believe me you can mark the shaft and pulley with a sharpie such that after a layer shift you can see if you are right or I am right. Sometimes the problem is high friction or overheating stepper driver (is it above 20C in the room with the printer?) but overheating stepper driver problems usually occur after an hour of printing - not just at the start. Push the head around with your fingers to feel the friction. If one axis seems worse then oil it. Oil them anyway. Just a tiny bit of oil. Too much oil is bad. One drop on each of the 6 steel rods in the gantry. Any light oil is fine. Don't use WD40.
Link to post
Share on other sites