Issues with I'm not sure what it's called?

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JustinF
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Joined: Mon May 22, 2017 2:25 pm

Issues with I'm not sure what it's called?

Post by JustinF » Wed May 24, 2017 5:02 am

There are like layer shifts or something going on with my prints but, I'm just not sure what it is any help would be appreciated? The print got a little better as it was going higher and after lubricating the LM8UU bearings and all the Axises but, still not perfect. The question is whether it's just a lubrication thing or is something off in the mechanics? Thanks
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Tom
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Re: Issues with I'm not sure what it's called?

Post by Tom » Wed May 24, 2017 11:20 am

Thin walls with little stability tend to warp as the part is printed. I've seen this with the HexLamp shade, using a single wall of PETG, which gave a wavy pattern on the smooth sides, with about 5mm of amplitude.

Suggestion: Try and raise ambient temperature by a bit!

JustinF
Posts: 15
Joined: Mon May 22, 2017 2:25 pm

Re: Issues with I'm not sure what it's called?

Post by JustinF » Wed May 24, 2017 4:43 pm

Hi, Tom,

How high can you go with PLA? Also, did you mean the room temperature or the hot end?
I was at 210C with 65C on the bed and a print speed of 60mm/s.

Thanks for the reply.

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PartTimeRonin
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Joined: Mon May 22, 2017 2:33 pm

Re: Issues with I'm not sure what it's called?

Post by PartTimeRonin » Wed May 24, 2017 5:55 pm

ambient temperature mean the room temperature that the printer is in.
Unless you use enclosure.

JustinF
Posts: 15
Joined: Mon May 22, 2017 2:25 pm

Re: Issues with I'm not sure what it's called?

Post by JustinF » Wed May 24, 2017 6:25 pm

What room temperature do you all keep your printers at? I keep my house at around 74 Degrees Fahrenheit.

Thanks again

LKM
Posts: 27
Joined: Wed May 24, 2017 9:05 pm

Re: Issues with I'm not sure what it's called?

Post by LKM » Wed May 24, 2017 9:25 pm

If the thing you're concerned about is the very slight shift in where exactly the edge is, then that could have many different reasons.

Are these shifts consistent between prints, i.e. happen in the same place? Then there's something wrong with your Z axis.

Are they random? Then you should tighten your belts, and make sure all of the grub screws are tight, and that there's no backlash anyhwere in your x or y axis (it's not entirely clear from the picture, but it looks like it's mainly shifting along the x axis, so check the belts and grub screws there first). Also check if the hotend and nozle are attached tightly, and aren't moving.

JustinF
Posts: 15
Joined: Mon May 22, 2017 2:25 pm

Re: Issues with I'm not sure what it's called?

Post by JustinF » Wed May 24, 2017 9:36 pm

I will check the belts and tighten the screws as it is an inconsistent thing, sometimes it's perfect and it just kind does it randomly.
Thanks for the reply.

CowboyH3nk
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Joined: Mon May 22, 2017 11:22 am

Re: Issues with I'm not sure what it's called?

Post by CowboyH3nk » Thu May 25, 2017 12:37 pm

could be the result of a bit of backlash where the printer moves to quick.

Other funny thing is that the printing moire, the wavy paterns some printer make...seems to disappear when upgrading electronigs and steppers to higher resolution. I'm running a Delta with a RADDS board on a Due, RAPPS128 stepper drivers and NEMA 17 with 400 steps per rotation, this makes fine detail so much sharper. But running the printer slow helps...

JustinF
Posts: 15
Joined: Mon May 22, 2017 2:25 pm

Re: Issues with I'm not sure what it's called?

Post by JustinF » Sun May 28, 2017 8:42 pm

Where do you get a RADDS board at? Will Marlin work on that or is it just a ramps replacement? Thank You.

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