1 Topic by Bad Coffee

  • Bad Coffee
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  • Registered: 2012-10-04
  • Posts: 42

Topic: Print help.

I'm looking for some expert help to improve my prints.

Stats:
SD2 with a window fan blowing on the back (Until I get a cover/fan holder printed.)
Marlin FW
Repetier/Slic3r Settings from Ian's blog. 
Printing at .3 on 2mm Glass with hairspray. The factory bed is a bit domed, so I don't know if my glass is too thin, and is warping with the bed.
Bed 95* Extruder 180*
ABS from Ebay.  Not sure mfg. It's on a white plastic spool and came from a guy in PA, if that helps.
.STL export from Vectorworks.

Just measured my hysterisis for X&Y.  Still need to change firmware.

Questions about the print:

What causes the banding in the body? It looks like the layers weren't hot enough to stick down to the layer below.

Why is it a perfect pattern?  he spaces are about 1.5mm consistently through the height of the piece.

What makes the corners wavy?

I noticed the first layer is smooshed on the glass.  I had to change out the Z limit screw and the 3mm I picked up from the hardware store isn't as nice as the OEM one.  There's some wobble in the screw holder I need to take care of first.  I"m hoping a 3mm nut on top/bottom of the SD bracket works.


I'm a complete 3D printing newb, so any help is appreciated.

Thanks

2 Reply by Bad Coffee

  • Bad Coffee
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Re: Print help.

Attaching the picture might actually help!

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3 Reply by ysb

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Re: Print help.

i think that 180 deg for ABS is a bit low. i use 195deg for abs for a good sticking/melting

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4 Reply by jooshs

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  • Registered: 2012-08-07
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Re: Print help.

That is definitely a bit low. Not sure it would cause this though. You should check your voltages on the board. You may need to adjust the trimpots. Where is the bottom of your print?

5 Reply by solijohn

  • solijohn
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Re: Print help.

ysb wrote:

i think that 180 deg for ABS is a bit low. i use 195deg for abs for a good sticking/melting

Depends if this is the reported or actual temperature. Some users have claimed prints will work at 170. We use 200 in the shop.

Former Solidoodle employee, no longer associated with the company.