NebuCHADnezzar Comments - Answer Overflow

NebuCHADnezzar

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

Also would like to have an official statement to this issue from ratrig adressing this... I read tons and tons of ppl having this issue

1775 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

Cant wait for the research mazas and tg79 did

1775 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

Cant believe u are teasing us like that you naughty naughty :kekw:

1775 replies

RRCRat Rig Community [Unofficial]

•Created by anddelbel on 9/15/2024 in #fix-my-printer

pi doesn’t turn on with gpio pins

thank god this exists LMAO I do have the excact same problem, didnt have the opportunity to check whats causing it but I do suspect the same endstop to be pinned wrong... and I thought it was the board... I already got a replacement board from RR... guess free octopus xD

142 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

good or bad news?

1775 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

hows the testing going?

1775 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

thats what you would think, right? but I am not so sure if that is really correct... When a fan pulls air, it creates negative pressure, which can lead to turbulence and increased resistance in the airflow path. This can reduce the overall efficiency of the fan... Some fans are definitly specifically designed to push air and may not perform as well when used to pull air. The design of the blades and the housing can significantly impact the fan’s efficiency in different configurations... The air flow behind a fan is slow moving and wide whereas the air flow in front of the fan is fast moving and narrow

1775 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

oh okay, thats what I more or less thought that you would do, but it sounded for me in Helges message that you are just reverse the spinning direction, so I was unsure if you are actually flipping it at the moment or if you are reversing the spinning direction... but now I also understand what helge was saying better, because indeed the blades are not optimized for pulling air, even if the spinning direction is as intended... the question is do fans exist that would be optimized to sucking in this formfactor?

1775 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

I am just a noob reading along this thread, but what about actually reversing the fan? I mean flip it around and use it in unreversed... would that not improve the characteristics, because the blades would be working in the direction they were intended to? also just an idea (I am not sure if this would be even possible without a major redesign), but what about putting the fan behind the hotend instead of front and then blow the air over the hotend as usual, just 180° flipped?

1775 replies

RRCRat Rig Community [Unofficial]