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Author Topic: Anycubic Kossel (pulley)  (Read 223 times)

Deity

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Anycubic Kossel (pulley)
« on: October 24, 2017, 09:49:14 AM »
So, independently of knowledge that Yahmez had one himself I decided to get a Anycubic Kossel delta 3D printer.
The decision process is chronicled on another post here [add link to it later]

After over a month (yay for the CN slow boat) since I originally ordered it, I finally got my kit!
Furthermore it arrived on a Friday, so that means I had a lovely tinkering weekend!

I spent most of Saturday assembling it, it was not difficult, the instructions that come with it are clear and illustrated
with pictures. I was probably too overzealous making sure I had everything assembled just right, that's why it took me
all that time.

I had previously decided to add auto-leveling to it, and for that effect I had already an inductive probe ready
to add to my kit, also that's why I coated the glass bed with foil tape (see attached picture).

However, I have been struggling with the firmware... to get auto-levelling working properly (it insists in trying to probe
out of the bed area) but it might be some stupid and simple error. More on that tonight!

EDIT:

Ok it's confirmed, my issues with the auto-leveling were arising from the lack of M502 and M500 following the
firmware update! Also I had my towers switched around which means that I was reporting the position of my
probe wrongly!

Just printed a test cube and from here I can start fine tuning until I get nice prints!






« Last Edit: October 24, 2017, 04:33:12 PM by Deity »

Bajdi

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Re: Anycubic Kossel (pulley)
« Reply #1 on: October 24, 2017, 03:52:24 PM »
Looks like a good machine, it doesn't use noisy LM8UU bearings  >:D
Not a fan of those little extruders though, but it's probably good enough for moderate printing speeds (0.2mm layers @ +-60mm/s)

Deity

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Re: Anycubic Kossel (pulley)
« Reply #2 on: October 30, 2017, 01:52:43 PM »
Well yes, that speed and layer height has been my default as I debug/tweak been debugging my printer.

As you can see in the attachment, between each print I would find some screws I had not tighten up properly,
so I would tighten then and do the next print. The increase in print quality is quite noticeable from one to the next.
Although the vertical wavy lines is still noticeable on the newest (first in line) print.

balls2.jpg
*balls2.jpg (88.94 kB . 1024x765 - viewed 45 times)

P.S. - These feet are really amazing, printer is super silent now! Kudos to Yahmez for designing and sharing them with the world!

Deity

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Re: Anycubic Kossel (pulley)
« Reply #3 on: October 30, 2017, 01:58:24 PM »
To get rid of most of the remaining gooey spots I reduced acceleration and jerk (to the actual Anycubic suggested defaults) and managed to get a noticeable improvement, as can be seen by the couple of tree frogs below (before, after)

frogs.jpg
*frogs.jpg (37.43 kB . 1024x765 - viewed 44 times)

The newest one is looking quite nice for the used settings, and I now already happy with that quality as a baseline!

Deity

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Re: Anycubic Kossel (pulley)
« Reply #4 on: October 30, 2017, 02:07:18 PM »
So, now my only remaining current big issue is with leveling! Auto-leveling in itself, seems to be working ok, maybe?

I mean it runs, then prints an uneven first layer (correcting for the bed slant/deformities?) and if I rotate the bed around
auto-leveling correcting seems to apply to where the regions where rotated to.

The problem seems to be how it is correcting, printing a very thin layer on the "slanted up" part of bed leaves me with situations
like this:
hexes.jpg
*hexes.jpg (64.12 kB . 1024x765 - viewed 44 times)

Which is not very desired, those holes where only supposed to be showing on one side, and those lost corners are because
the height of the model there isn't very high....

I actually tried to raise the bed on the side that is detected as "slanted down" but strangely enough it doesn't seem to have made any difference!

Deity

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Re: Anycubic Kossel (pulley)
« Reply #5 on: November 13, 2017, 04:08:05 PM »
After fiddling and re-fiddling with leveling I've dropped auto-leveling altogether.
Had to spend more hours than I would like manual leveling (which is conceptually simple but in practice turned out to be a pain),
but managed to open the door for a lot of hours printing and this is what I been up to, for a friend:

catan3.jpg
*catan3.jpg (241.75 kB . 800x598 - viewed 17 times)

Bajdi

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Re: Anycubic Kossel (pulley)
« Reply #6 on: November 13, 2017, 04:48:04 PM »
Oh la la, what a comeback  >:D

 

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