How do I change the fill, for just one part of an object?
 
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[Solved] How do I change the fill, for just one part of an object?  

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David Westley
(@david-westley)
Active Member
How do I change the fill, for just one part of an object?

Hi all,

Ive created a pencil case, where the top swivels on the bottom, via a screw. Is there a way I can change the infill density, for just the portion of the body where the screw is inserted? I’d like to make the area around the screw much stronger (and to give something for the screw to “bite”into), but I don’t really want to change the fill density for the entire body. The attached image might explain better what I’m discussing. The two red arrows show the part of the body I need to be much denser, the single red arrow shows the screw hole.

Best Answer by Swiss_Cheese:

@david-westley

 

You would want to use a modifier mesh for this.

you would right click on the object you want to add the modifier to. scroll down the list select "Add modifier" in your case I might choose a cylinder. then scale and position the modifier and go to the object menu select the Generic-Cylinder that is your modifier, and right click select Infill from the list and change the properties for the modifier to your liking, 100% Rectilinear should do the trick. Another option would be to add perimeters using the modifier, instead of solid infill. I think the infill will do fine.

 

If your not sure how, then post a Zipped up .3mf project file exported from PrusaSlicer, and I'll take a look and set an example for you. The .3mf file should be setup as you would when trying to print the part and will allow us to see all the settings as they pertain to the model in your project.

Note: if you do not Zip the file the forum server will not allow it to be posted.

 

Regards

 

Swiss_Cheese

Posted : 23/07/2022 2:48 am
Swiss_Cheese
(@swiss_cheese)
Noble Member
RE: How do I change the fill, for just one part of an object?

@david-westley

 

You would want to use a modifier mesh for this.

you would right click on the object you want to add the modifier to. scroll down the list select "Add modifier" in your case I might choose a cylinder. then scale and position the modifier and go to the object menu select the Generic-Cylinder that is your modifier, and right click select Infill from the list and change the properties for the modifier to your liking, 100% Rectilinear should do the trick. Another option would be to add perimeters using the modifier, instead of solid infill. I think the infill will do fine.

 

If your not sure how, then post a Zipped up .3mf project file exported from PrusaSlicer, and I'll take a look and set an example for you. The .3mf file should be setup as you would when trying to print the part and will allow us to see all the settings as they pertain to the model in your project.

Note: if you do not Zip the file the forum server will not allow it to be posted.

 

Regards

 

Swiss_Cheese

The Filament Whisperer

Posted : 23/07/2022 3:59 am
David Westley
(@david-westley)
Active Member
Topic starter answered:
RE: How do I change the fill, for just one part of an object?

Many thanks @Swiss_Cheese, those instructions were perfectly easy to follow - although I chose a rectangle rather than a cylinder. Resized the rectangle to fit & when sliced, the outcome appears to be exactly what I wanted. Printing it now.

regards,

David.

Posted : 23/07/2022 4:27 am
John
 John
(@john-6)
Reputable Member
RE: How do I change the fill, for just one part of an object?

The holes you have added will put perimeters around it regardless of the fill type. So maybe no need to change the settings other than extra perimeters 

i3 Mk3 [aug 2018]

Posted : 23/07/2022 5:38 am
David Westley
(@david-westley)
Active Member
Topic starter answered:
RE: How do I change the fill, for just one part of an object?

Thanks @John,

I'm still really new to this, so that didn't occur to me - I wasn't really aware I could just adjust the perimeters.

Given how this design is entirely reliant upon the strength of the substrate into which the screw is fixed, I kinda like the idea of buttressing the entire end with a solid block of material, however adding perimeters is something I'm exploring right now. I know how I'd make this from traditional materials, I'm just struggling a bit with this new way of doing things.

Love the quick assistance I got. This forum is a fantastic resource. Thanks everyone.

Regards,

David

Posted : 23/07/2022 8:17 am
David Westley
(@david-westley)
Active Member
Topic starter answered:
RE: How do I change the fill, for just one part of an object?

Thanks again Mr Cheese, it appears to now be printing exactly how I want, with solid fill at one end (around the screw hole).

Posted by: @swiss_cheese

@david-westley

 

You would want to use a modifier mesh for this.

you would right click on the object you want to add the modifier to. scroll down the list select "Add modifier" in your case I might choose a cylinder. then scale and position the modifier and go to the object menu select the Generic-Cylinder that is your modifier, and right click select Infill from the list and change the properties for the modifier to your liking, 100% Rectilinear should do the trick. Another option would be to add perimeters using the modifier, instead of solid infill. I think the infill will do fine.

 

If your not sure how, then post a Zipped up .3mf project file exported from PrusaSlicer, and I'll take a look and set an example for you. The .3mf file should be setup as you would when trying to print the part and will allow us to see all the settings as they pertain to the model in your project.

Note: if you do not Zip the file the forum server will not allow it to be posted.

 

Regards

 

Swiss_Cheese

 

Posted : 23/07/2022 8:31 am
Swiss_Cheese
(@swiss_cheese)
Noble Member
RE: How do I change the fill, for just one part of an object?

@david-westley

 

😉 👍 

 

I'm glad I could help

The Filament Whisperer

Posted : 23/07/2022 5:07 pm
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