1 Topic by hansen644

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Topic: Help please. davici 1.0 hot tip to far from glass bed

HI, I need help please. I called davinci tech support but they said to email them a video. I did but now have to wait on there email reply.
My hot tip is way to far away from the bed glass.
I did a calabration and all checked good. 
Thinking maybe the jog mode button might help? I dont know what jog button does really?
Anyway I would say the tip is about 2mm to high from the bed.
This all came about having to clean out a clogged tip.
Have to wait on XYZ to reply to email when ever they get time.

2 Reply by boxcarmib

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Re: Help please. davici 1.0 hot tip to far from glass bed

perhaps you might post the video as well. It does seem odd that you have this problem AFTER doing a successful calibration. All that happens during calibration is the DaVinci lifts the table up until 3 of the 4 metal tabs holding the glass bed in place make electrical contact with the printer nozzle. What are/were your three calibration point readings?

3 Reply by hansen644

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Re: Help please. davici 1.0 hot tip to far from glass bed

Readings where 255 255 256  and 280 overall.  Davinci said use different glue on bed

4 Reply by hansen644

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Re: Help please. davici 1.0 hot tip to far from glass bed

I am just tried hairspray but still no luck. So now I just used the thumb adjustment screws and gave all three screws a quart turn to raise the bed. Will try again right now to see what happens

5 Reply by hansen644

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Re: Help please. davici 1.0 hot tip to far from glass bed

Seems to work good now that I said screw the calibration and adjusted the thumb wheels.  lol

6 Reply by nexoneo

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Re: Help please. davici 1.0 hot tip to far from glass bed

yeah i just said forgetabouit to the calibrating. just been moving the knobs as i do a wide print to make sure the layers look good/okay.

7 Reply by Lmay

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Re: Help please. davici 1.0 hot tip to far from glass bed

I have something happening that I've not seen before - completed the re-loading back to "J" version - all appears to have worked as expected.  Went thru another "calibration" routine just to be sure that the table was where it was expected to be and on the first track the head made, it conveniently scraped off the layer of tape that I use.  I have been using a single layer of 9" wide tape on the glass for some time and it has worked very well for me.  Went thru the routine again to try to improve the numbers or at least see a change - tested again with an item to print and it's doing the same thing.
I suspect there's several things I could do to "cheat" on the calibration to get it in position but am puzzled by what is causing this.  Anyone else had this happen?  If so would appreciate hearing of your correction method and logic behind this activity.  Thanks.

8 Reply by nexoneo (edited by nexoneo 2014-10-30 18:36:50)

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Re: Help please. davici 1.0 hot tip to far from glass bed

it might be because the of the use and heat, the screwheads come slightly loose and shift the bed up.

i know mine shifts up by 1cm sometimes, even during a print. so i check on my larger prints every hour or 2, and spin the knobs a little to the right to shift the bed down just enough so it's not scraping off the previous layer

9 Reply by carl_m1968

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Re: Help please. davici 1.0 hot tip to far from glass bed

nexoneo wrote:

it might be because the of the use and heat, the screwheads come slightly loose and shift the bed up.

i know mine shifts up by 1cm sometimes, even during a print. so i check on my larger prints every hour or 2, and spin the knobs a little to the right to shift the bed down just enough so it's not scraping off the previous layer


Maybe your springs are just old. On mine in order to go down which goes against the springs it takes a lot of force to turn. Enough that if I have to do it often it starts making blisters on my fingers. Going the other way is not as hard but there is enough force that I don't see how they could move on their own. As for thermal expansion, I don't think the bed gets hot enough to cause any measurable expansion in the springs, screws, or knobs.I mean at most you would run the bed at 110, that is like 220 or so in F. Not really hot enough to cause any real expansion in steel.

Printing since 2009 and still love it!
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