[solved] First Post :) Find the Culprit? (lemmy.world)

submitted 1 year ago* (last edited 1 year ago) by madejackson@lemmy.world to c/fixmyprint@lemmy.world

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We need to start to fill up lemmy :) Can you solve this issue?

My HEVO (Hypercube Evolution), now 5 years old started to have very weird banding.

It has a Bowden BMG Extruder and a E3D V6 printhead with CHT-Nozzle. MKS Robin with TMC2209 and Klipper.

Benchy is ABS, lower one is HIPS. Printed at 230°/105° bed. part cooling fan off.

I took apart and cleaned the extruder. The gears look intact and i can move the extruder by hand without binding. I found the E3D V6 was loose. I retightened it, which didn't solve the issue.

I'll spend a beer to the one that solves this issue ;)

Edit: Found the Issue: hotend not hot enough.

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[-] LazaroFilm@lemmy.world 2 points 1 year ago

Heyyyy HEVO brother!!!

Have you dried your filament? Also make sure the X rods don’t bend around or the nozzle/carriage isn’t loose.

[-] madejackson@lemmy.world 1 points 1 year ago* (last edited 1 year ago)

Heyouu :) Nice! Showcase your printer? Here's mine.

Yeah my filament is stored in dryboxes and I janked the carriage around, it's fairly stable, no unusual flex :(.

I'm going to make my newly built DuelingZero ready for printing tonight then I can finally fix my HEVO :) I plan on Upgrading to the Hextrudort, which will hopefully fix my issues. Upgrade path ist step by step to a complete hevORT :) let's see how that goes.

[-] LazaroFilm@lemmy.world 2 points 1 year ago* (last edited 1 year ago)

I présent to you Bumblebee!

Bumblebee

I use this carriage and the rail x gantry from the same designer.

[-] h4mi@lemmy.world 0 points 1 year ago

Have you printed that blue spool before at that temp? Do you use any cooling?

My ABS kinda looks like that if I forget the fan on, or have a too low nozzle temp.

[-] madejackson@lemmy.world 0 points 1 year ago

I usually don't use cooling for ABS as it leads to bad layer adhesion in the final part. But ABS should print perfectly fine without cooling.

Hmm... I print at 230° which was enough in the past, maybe my thermistor is reporting the wrong temp?

[-] rambos@lemmy.world 1 points 1 year ago

You found solution?

Do PID tuning if you changed anything or you might have wrong or unstable temps. I dont print much ABS but I think its safe to use part cooling fan at lower speeds. Picture looks like you are printing too hot

[-] madejackson@lemmy.world 1 points 1 year ago

Hey thanks :) Yes I found it. It seems like I printed not hot enough. I am now printing at 250° without issues anymore.

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this post was submitted on 26 Jul 2023

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