The stl is fine, it has some rough spots in area’s but we can clean some of them up with some modifier settings and make it print with less overhangs
Now if your bridge settings are not good you can still have some problems and what works for say pla filaments may not work for your asa filaments
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Let’s get started 
The support settings we want Manual & Snug
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Process Strength tab 45
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Now we need to add our support by painting
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Let’s test it out slice the part let see how the supports look
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Just before the bridge four interface support layers
- Note: this can be tricky setting with ASA ( Top Z Distance ) setting without using a support interface filament it can be done it just depends on the look you want
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The blue bridge layers
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Now we need to add a Modifier Torus
- You need to scale it to the correct size and move it to the correct position to work correctly
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We want to change this objects Quality setting for the torus
Make overhangs printable
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Let’s test it out slice the part we should have a slope edge with no supports added
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Now we are going to add another modifier Height Range
Let use these settings 80 to 90 mm
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We want to change this objects Quality setting for the Height Range
Make overhangs printable
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We want to change this objects Strength setting for the Height Range
Top Surface pattern = Concentric
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Let’s test it out slice the part
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- We should now have less top overhang angle
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Ready to print 
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Notes:
Some other setting you might have to change to fix your bridges you will have to do some testing to find what works for your filament.
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Bridge Speeds external 10 to 80 mm/s start slow work your way up in 5 mm/s steps
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Bridge Speeds internal 10 to 80 mm/s start slow work your way up in 5 mm/s steps for the ASA 40 mm/s is a good starting point
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Bridge Flow 0.8 to 1.5 start low work your way up in 0.1 steps if needed
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Interface cooling can be 0 to 100% this can be adjusted for the filaments being used the more cooling we can get away with the less bonding we get but some parts can warp with too much cooling so you have to be careful
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Hope this helps you out…
