No inner brim when the option is selected
I am trying to add an inner brim because I do not want to need to clean the outer edge after the print as it needs to fit into another part. Attached is the step file and the config file. I have tried it with the elephant foot both on and off.
RE: No inner brim when the option is selected
The file did not atach
RE: No inner brim when the option is selected
I am not able to attach any file????
RE: No inner brim when the option is selected
I am not able to attach any file????
PUT it in a zip file
Please help me out by downloading a model it's free and easy but really helps me out https://www.printables.com/@Hello_474427/models
RE: No inner brim when the option is selected
Also could you please attach a zipped up project file (3mf) from Prusa Slicer. Use File Save project as once its set up to give you your problem. A 3mf file contains not only the model(s) but also the settings you are using which will allow us to hopefully diagnose the problem.
You have to zip up attachments here. Also it is best to check immediately after posting as the edit window is very short.
RE: No inner brim when the option is selected
Both files zipped and attached, hopefully...
RE: No inner brim when the option is selected
As I thought. Several people have made a similar mistake in their assumptions on brim outer and inner.
There is no inner on your object. All the perimeters are 'outside' on the first layer, hence no brim when set to inner. If its was a complete rectangle you could set inner. Take a pointer and trace around the outside, you can trace to the interior in a complete unbroken line without lifting the pointer through the gap, it its all 'outside'. If you had to lift the pointer to get to the rest of the perimeters it would have an inner.
If its your object you could modify the design to add in a bar across the first layer, or do the same with a modifier.
See the attached modified project as an example.
RE: No inner brim when the option is selected
I'm not sure how to get a 'pointer' or if I could do it to the needed resolution. In my cad drawing I added another layer that made a span across the opening so there is not constant perimeter inside and out. But I still do not get an inside brim. The modified step file and config are atttached.
RE: No inner brim when the option is selected
Did you examine the modification I made to your original file ? All that was an added part sized to be 1 layer high (0.2), slightly above 1 extrusion width (0.5) and long enough to go across the gap. That was then placed to the bed and moved to the correct position to block off the opening.
The span on your new model looks to be 0.025 high according to prusa slicers measuring tool. That is not thick enough. The first layer height is 0.2mm so its not going to pick that up. You would have to change your first layer height to something like 0.05 (which does slice with it there). However doing that would play havoc with your first layer adhesion.
You have to remember when designing stuff that anything you add has to be bigger than what settings you are intending to slice with or it just wont be sliced.
RE: No inner brim when the option is selected
I did see your modification, however I do not know how you did it. If I make the feature .01" high in my cad drawing the inner brim seems to work. I'm starting the print to see how it sticks.
Thank you very much for the help and I will post the results here.