Why no bridges for this? February 12, 2017 06:51PM |
Registered: 7 years ago Posts: 6 |
Re: Why no bridges for this? February 12, 2017 11:33PM |
Registered: 9 years ago Posts: 351 |
Re: Why no bridges for this? February 13, 2017 07:25AM |
Registered: 8 years ago Posts: 5,232 |
Re: Why no bridges for this? February 13, 2017 11:46AM |
Registered: 10 years ago Posts: 2,472 |
Re: Why no bridges for this? February 13, 2017 01:20PM |
Registered: 7 years ago Posts: 6 |
Re: Why no bridges for this? February 13, 2017 01:53PM |
Registered: 8 years ago Posts: 5,232 |
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GhremHatesSlic3r
I would expect bridging to be done between the edges but not in the center. Totally lame there isn't. If bridging was done edge to edge then the circles would have something to hold them and it would come out way cleaner.
Re: Why no bridges for this? February 13, 2017 03:47PM |
Registered: 7 years ago Posts: 6 |
Re: Why no bridges for this? February 13, 2017 05:19PM |
Registered: 7 years ago Posts: 17 |
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GhremHatesSlic3r
Nah, the interior ends in deadspace, it would still be strings and the circles would still fall through... MIGHT get one good layer with doing that but it would still be crap. I would think they could do a partial bridge detect and print the bridges on the left/right or top/bottom around the center hole. Would that not be a valid feature request? I'm quite shocked it doesn't already do this.
Re: Why no bridges for this? February 13, 2017 05:38PM |
Registered: 7 years ago Posts: 6 |
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doodady
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GhremHatesSlic3r
Nah, the interior ends in deadspace, it would still be strings and the circles would still fall through... MIGHT get one good layer with doing that but it would still be crap. I would think they could do a partial bridge detect and print the bridges on the left/right or top/bottom around the center hole. Would that not be a valid feature request? I'm quite shocked it doesn't already do this.
It seems possible.
Lets say you have a need to print a 4mm hole in the middle of a 20mm square starting at 5mm high. The printer could make a bridge spanning the 20mm block starting at one side and then stop at the edge of the 4mm hole perimeter wall then do the same on the other side of the hole. following that it could bridge the 4mm gap between the newly made bridges up the remaining to edges of the hole perimeter. Then it could bridge on a 45deg angle the gaps at the 4 edges of the hole perimeter wall interface. by continuing this, based on the size of the hole wall, eventually there would be enough support available to build the first hole perimeter wall.
Re: Why no bridges for this? February 14, 2017 07:24AM |
Registered: 10 years ago Posts: 2,472 |
Re: Why no bridges for this? February 14, 2017 07:40AM |
Registered: 7 years ago Posts: 17 |
Re: Why no bridges for this? February 14, 2017 10:17AM |
Registered: 9 years ago Posts: 351 |
Re: Why no bridges for this? February 14, 2017 11:54AM |
Registered: 7 years ago Posts: 6 |
Re: Why no bridges for this? February 15, 2017 07:54AM |
Registered: 7 years ago Posts: 17 |
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GhremHatesSlic3r
[attachment 90566 Layer13.JPG][attachment 90567 Layer14.JPG][attachment 90568 Layer15.JPG][attachment 90569 Layer16.JPG]
Creating a .2mm bump(Layer 14) in the nut space (Layer13) to the top and bottom of the hole forces the slicer to create the desired effect of adding a partial bridge first to the top/bottom (Layer 14, the bump) and then to left/right (Layer 15) before doing infill on Layer 16+. I just printed this and it turned out freaking awesome.
I know 14/15 are bridge since they are straight and not 45º, also because they printed at my bridge setting of .5 feed rate (uber thin). It can be done and it does work so much better than without the bridging. Feel free to try, the modified stl is [www.thingiverse.com]
Re: Why no bridges for this? February 16, 2017 07:05AM |
Registered: 10 years ago Posts: 2,472 |
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doodady
What happens if you try to bridge to or from the middle of a bridge?
Please understand I am relatively new here
Re: Why no bridges for this? February 16, 2017 07:41AM |
Registered: 7 years ago Posts: 17 |
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dmould
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doodady
What happens if you try to bridge to or from the middle of a bridge?
Please understand I am relatively new here
The same as if you try to bridge a gap of exactly 2m with a plank of wood that is exactly 2m long. The wood has nothing to rest on at each end, so it falls into the gap.
Dave
Re: Why no bridges for this? February 16, 2017 09:57AM |
Registered: 8 years ago Posts: 5,232 |
Re: Why no bridges for this? February 16, 2017 11:26AM |
Registered: 7 years ago Posts: 6 |
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o_lampe
Does 15% overlap mean, the track is 15% longer than it should or is it 15% of the nozzle width or perimeter width? Fact is, I tried to print the part and it failed almost the same way as without the bump. ( I printed two pieces and flipped on upside down )
Re: Why no bridges for this? February 17, 2017 06:58AM |
Registered: 10 years ago Posts: 2,472 |
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doodady
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dmould
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doodady
What happens if you try to bridge to or from the middle of a bridge?
Please understand I am relatively new here
The same as if you try to bridge a gap of exactly 2m with a plank of wood that is exactly 2m long. The wood has nothing to rest on at each end, so it falls into the gap.
Dave
What is the result if the bridge is 2.30m and the gap is 2m (15% overlap)? would that not work the same as bridging perimeter to perimeter as it does now?