1 Topic by CrazyBear (edited by CrazyBear 2013-03-15 00:47:28)

  • CrazyBear
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  • From: Orange County, CA
  • Registered: 2013-02-18
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Topic: SD3 Noob: Issues with gears. Is my platform too close? or?

I am printing a gear and I can hear the head crashing with the piece. Also, there are some traces and blobs of plastic.

If I adjust the Z screw a little higher the ABS doesn't stick and I had to use 110(C) for it to stick.

Thank you,

CB



Note:

I already did the extruder calibration and the flow rate adjustment. My test box walls measures between 0.42 to 0.41 mm smile

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2 Reply by jjcuff1

  • jjcuff1
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  • Registered: 2012-10-18
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Re: SD3 Noob: Issues with gears. Is my platform too close? or?

Well I had same experience withthe Alum bed being warped hard to find right spot that is flat glass will help and is cheap and easy. Home depot $3 worth of glass and a few chip clips from dollar store and I was up and running and changed my SD2 experience all together.

But.. if not. See that skirt to the right. It is slight bead but the left is squished almost you can not see? I know when I ran Alum the left was more or less what I wanted ot see to get a first layer but I realized after glass that is too much and caused the drag.

So it appears you need to level the bed a little and your first layer has a lot of flow, lots of blobs. Also you are dragging a lot across the infill and gear you might be cooling too fast too. And with infill on such a narrow part slow down the over all speed

If you go higher it is not sticking because it is dragging the plastic off the bed it is too close, level things out first for sure.
I usally do a piece of printer photo paper at 0.25mm all around and double check the middle to the leveling points too find a happy medium. Should slide under with just a little effort and bed compresses a hair.

then back the Z screw 1/16 up so the bed is closer you should be about .2mm and if warped in middle maybe 0.1mm. That seemed to work best for me

SD2 owner- Surestepr, filament holder,QUBD servo and heaters, glass bed
Print for fun and for parts for my sports cars
current car is 88 IROC

3 Reply by paeltz

  • paeltz
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Re: SD3 Noob: Issues with gears. Is my platform too close? or?

I agree with jjcuff1, your bed may not be level.  Also have you calibrated your extrusion multiplier?  If not search for the video on how to do that after leveling your bed and you will save yourself a lot of headache (from someone that has given himself a lot of self inflicted headaches).