Prusa_i3 Heating and Fan July 28, 2017 11:48AM |
Registered: 6 years ago Posts: 9 |
Re: Prusa_i3 Heating and Fan July 28, 2017 09:40PM |
Registered: 6 years ago Posts: 1,863 |
Re: Prusa_i3 Heating and Fan July 29, 2017 02:06PM |
Registered: 6 years ago Posts: 9 |
Re: Prusa_i3 Heating and Fan July 29, 2017 04:43PM |
Registered: 6 years ago Posts: 1,863 |
Re: Prusa_i3 Heating and Fan July 30, 2017 01:17PM |
Registered: 7 years ago Posts: 103 |
Quote
Knedberg09
My fan has no ducts. Simple fane mounted to the face of the extruder motor.
Re: Prusa_i3 Heating and Fan July 30, 2017 02:08PM |
Registered: 6 years ago Posts: 1,863 |
Quote
Knedberg09
Hello All,
New to this game.
I recently finished building my unit and ran the test software to dial in the limits and settings.
I noticed while the tutorial asked to heat the unit up with the fan going 100% that I would never achieve the target temp of 230c the fan simply cooled it down. Without the fan I was able to achieve a hot enough unit to extrude filiment but that took a rather long time. I checked the wiring and everything seems solid enough. Are there wiring upgrades needed for a better current? Some of these wires are very thin.
Re: Prusa_i3 Heating and Fan October 22, 2017 09:14PM |
Registered: 6 years ago Posts: 9 |
Quote
slippyr4
Quote
Knedberg09
My fan has no ducts. Simple fane mounted to the face of the extruder motor.
That therefore sounds like it's your extruder cooling fan and not a part cooling fan, which Roberts_Clif was discussing above. That fan is important and not optional; without it you'll get problems including frequent blocking of the extruder.
I'm assuming from your description that you've got a MK8 style extruder but a photo would help - there are many, many prusa style printers.
However, if you can barely make temperature with the fan off, and not achieve it with the fan on, then something is wrong. Do you possibly have a heater element intended for 24V operation on a 12V power supply? Can you measure the resistance of the heater element?
Re: Prusa_i3 Heating and Fan October 22, 2017 10:15PM |
Registered: 6 years ago Posts: 1,863 |
Re: Prusa_i3 Heating and Fan October 22, 2017 10:17PM |
Registered: 6 years ago Posts: 9 |
Re: Prusa_i3 Heating and Fan October 26, 2017 08:17PM |
Registered: 10 years ago Posts: 477 |
Re: Prusa_i3 Heating and Fan October 26, 2017 10:39PM |
Registered: 6 years ago Posts: 1,863 |
Re: Prusa_i3 Heating and Fan November 09, 2017 04:40PM |
Registered: 6 years ago Posts: 9 |