Uploaded August 2023 | Updated September 2026, 2 weeks ago
The short, didn't happen. Close, depends on your idea of perfect.
I was able to solve one issue with this duct. I was getting some curl on the back left of the benchy, at the back of the stern where I have the seam. Curl will lift up and cause artifacts on the layers above where the curl happens. Curl is a function of too much temperature or not enough cooling/miss-directed cooling. I widened the nozzle orifice from 9mm X 4.5mm tall oval to 15mm X 3.5mm tall. In making the nozzle orifice wider, I left the position of the oval the same relative to the front of the nozzle. The other 6mm went towards the back. As the air comes around that turn it still wants to exit forward. Along with widening the nozzle orifice the ducting preceding the final orifice was widened and raised. This gives the air more time to make that bend. The area change was from 56mm2 to 62mm2.
Even though this example is not perfect, I am moving forward with this duct. I have printed some really nice models with it, fairly quick speeds, and it seems to be performing well. These tests give me an idea how to tune for different models.
Details of the cooling, temp, and speed are in the video. This was sliced using Ideamaker.
The short, didn't happen. Close, depends on your idea of perfect.
I was able to solve one issue with this duct. I was getting some curl on the back left of the benchy, at the back of the stern where I have the seam. Curl will lift up and cause artifacts on the layers above where the curl happens. Curl is a function of too much temperature or not enough cooling/miss-directed cooling. I widened the nozzle orifice from 9mm X 4.5mm tall oval to 15mm X 3.5mm tall. In making the nozzle orifice wider, I left the position of the oval the same relative to the front of the nozzle. The other 6mm went towards the back. As the air comes around that turn it still wants to exit forward. Along with widening the nozzle orifice the ducting preceding the final orifice was widened and raised. This gives the air more time to make that bend. The area change was from 56mm2 to 62mm2.
Even though this example is not perfect, I am moving forward with this duct. I have printed some really nice models with it, fairly quick speeds, and it seems to be performing well. These tests give me an idea how to tune for different models.
Details of the cooling, temp, and speed are in the video. This was sliced using Ideamaker.
