Issue with raised text and numbers
Hello,
Trying to print out a model with raised text and numbers. Using .4mm nozzle. Retraction length: 0.8 and Lift Z: 0.6. Any suggestions why the top of the text and numbers and in between them have bumps and extra plastic? Is it simply because I need a small nozzle? Like .15mm? Image of final model. 
Best Answer by JoanTabb:
Hi Maincityimp.
when you insert the pictures, could you please click Link To: Media File?
this will allow people to click on the image, and see a larger version
as for the spike... you could try reducing the Flow rate / Extrusion multiplier a little or take off Z lift
A smaller nozzle may help at the expense of longer print times.
0.15 mm nozzle would be a challenge, try 0.25mm as it will be easier to work with, and Prusa have a ready made profile available via Calibration Wizard
regards Joan
RE: Issue with raised text and numbers
Hi Maincityimp.
when you insert the pictures, could you please click Link To: Media File?
this will allow people to click on the image, and see a larger version
as for the spike... you could try reducing the Flow rate / Extrusion multiplier a little or take off Z lift
A smaller nozzle may help at the expense of longer print times.
0.15 mm nozzle would be a challenge, try 0.25mm as it will be easier to work with, and Prusa have a ready made profile available via Calibration Wizard
regards Joan
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
RE: Issue with raised text and numbers
Thank you, Joan