How do i properly change the speed to make it more accurate?
I've been trying to print a lot of small models, but my PRUSA printer just shakes the table, and knocks off the small parts while they are still printing. I've modified the prusa slicer settings, but I dont want to change anything without knowing what it does fully. Any tips?
RE: How do i properly change the speed to make it more accurate?
There are many possibilities at play here.
- Could be print sheet adhesion, using a glue stick to keep the parts attached to the print sheet
- Enabling Brims may help in keeping the parts attached to the print sheet
- Belt tension can also cause the problem
- Wet filament can also cause what you are describing
- You can reduce vibration (and noise) by putting a concrete paving slab between your table and your printer
- You can reduce vibration (and noise) by running a calibration on Phase Stepping and Input Shaper (but this requires an accelerometer)
Those are the ones I can think of, but I am also new to 3D printing, but these are the most common answers I have seen in the forums for similar issues.
RE:
I've been trying to print a lot of small models, but my PRUSA printer just shakes the table, and knocks off the small parts while they are still printing. I've modified the prusa slicer settings, but I dont want to change anything without knowing what it does fully. Any tips?
What filament are you using? What print bed are you using? What is the bed temperature? What nozzle are you using? What is the layer height? What is the nozzle temperature? What settings have you changed?
Can't really give you tips to be honest because there are just too many variables to consider. Please export your project to a .3MF file, zip it and attach the ZIP to your message. Then we can talk.
The commonest cause of poor adhesion and the subsequent head impacts is a dirty build sheet - it must be scrupulously clean, look up the many threads about the topic. In most cases glue stick is used to *reduce* adhesion.
Temporarily move the printer to another surface - or the floor. Does the shaking reduce? If so you have a resonance issue and moving to a different workbench should be enough or in extremis change the resonant frequency by adding weight - @bob-24's concrete paver suggestion - again look up threads first.
Cheerio,
The commonest cause of poor adhesion and the subsequent head impacts is a dirty build sheet - it must be scrupulously clean, look up the many threads about the topic. In most cases glue stick is used to *reduce* adhesion.
Temporarily move the printer to another surface - or the floor. Does the shaking reduce? If so you have a resonance issue and moving to a different workbench should be enough or in extremis change the resonant frequency by adding weight - @bob-24's concrete paver suggestion - again look up threads first.
Cheerio,
RE: How do i properly change the speed to make it more accurate?
I agree on what print sheet as well as cleaning. If your printing pla, use the smooth pei sheet for the best adhesion. Many people print PLA on the satin or texture sheet, which can work, but the bed adhesion is pretty poor imo. I exclusively print PLA on the smooth pei.
RE: How do i properly change the speed to make it more accurate?
I print PETG/PLA/TPU on the CryoGrip Pro and PC/PA/ASA on a G10 sheet. I never clean either except to wipe it down occasionally.