No bridging possible

Hello, I have a problem with my printer and I can't figure out why. It seems I can't manage to have any bridging no matter what I try. I did try lowering the bridge speed to even 10mm/s, I did try to increase the fan to 100% ( delta fan), I did try other settings in slicer ( tried superslicer and also prusaslicer just to compare) and now I have no idea anymore what can I try. I did try to see how the air flow is when I put the fan at 100% and I put my finger on the nozzle ( yes, the nozzle was not heated 🙂 ) and at least my feeling was that the air flow doesn't go directly on the nozzle but a like 1-2 cm in front of the nozzle. I have a rapido uhf with the vulcano horns. Is there anything else that I missed or I could still try? Pulling my hair here for some time and I wanted to try all I could before I asked Thank you in advance and it will be much appreciated
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3 Replies
ptegler
ptegler•2y ago
you need to move a bit faster (not slower) to stretch the extruding plastic as well as expand the volume a tiny bit. MAX fan helps cool it so it will stretch out without sagging
Nebulator
Nebulator•2y ago
In addition, you can also lower the bridge flow. With some filaments I need to go as low as 50%. Then increase flow rate over bridges by 10 or 20% superslicer can help, it can generate bridge flow test objects in increments of 10%
Maverik
Maverik•2y ago
will try thank you guys let's see what will come out
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