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Re: Feed Rates / Speed / etc - 7 years ago

Thanks everyone! This information is wonderful.

by Knedberg09 - Prusa i3 and variants

Re: Feed Rates / Speed / etc - 7 years ago

Hmm, Let me clarify what happened. The Feed rate of the filament into the heat end is what I am asking about. Not the speed of the print head during print. My first few tests resulted in melted plastic oozing from the extruder head where the shank stem rises above the nozzle. My thought was the feed rate into the heating block was too high so the input vs output of plastic didn't match up, thus

by Knedberg09 - Prusa i3 and variants

Feed Rates / Speed / etc - 7 years ago

Hello All, I am hoping to fine tune my knowledge on these machines and I am curious about feed rates, I recently had a nozzle ooze plastic from all over and I hadnt changed any settings from the original setup, so How do I know a good speed and where do I officially change it. The settings I see via the slicer dont give a feed rate option. I just need some insight on setups so I can not kill t

by Knedberg09 - Prusa i3 and variants

Melted plastic pushing out of everywhere - 7 years ago

of the extruder aluminum block, extruder tip connection, there is melted plastic everywhere and I dont understand why.... my settings are relatively the same, my feed rate i didnt adjust from the tests.... its just bad....

by Knedberg09 - Prusa i3 and variants

Re: Prusa_i3 Heating and Fan - 7 years ago

Reprapguru DIY RepRap Prusa I3 V2 Black 3D Printer Kit The RepRap Guru Prusa I3 V2 has an Impressive 8"x8" heated build area topped with a genuine piece of borosilicate glass. The V2 also includes the 2004 LCD w/ SD card reader allowing the user to print from a SD card with out a computer connected. The V2 uses a 1.75mm direct feed extruder that is fitted with a .04 nozzle allowing a print resolu

by Knedberg09 - Prusa i3 and variants

Re: Prusa_i3 Heating and Fan - 7 years ago

Oh yeah we are for sure out of that range, with fan at full as instructed I hit 110C in about 3 minutes and it levels off. setting is for 230c the heat bed I havent even tried to play with just yet. I was trying to get the ohms read on the heat end. where specifically should I place my red and black probes to get the read out.

by Knedberg09 - Prusa i3 and variants

Re: Prusa_i3 Heating and Fan - 7 years ago

Quoteslippyr4 QuoteKnedberg09 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

by Knedberg09 - Prusa i3 and variants

Re: Prusa_i3 Heating and Fan - 7 years ago

Thank you for this initial response. I will go ahead and upgrade the main power, I agree they are vastly under rated. My fan has no ducts. Simple fane mounted to the face of the extruder motor. No direct fan on the actual heater. Im hoping by upping the main power line the overall heating will increase.

by Knedberg09 - Prusa i3 and variants

Prusa_i3 Heating and Fan - 7 years ago

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

by Knedberg09 - Prusa i3 and variants