1 (edited by nate44139 2014-12-04 05:17:54)

Topic: something knocking and its printingnvery thin.

i have been printing with my da vinci 1.0 for a week and had to change the filliment. i dont know whats wrong because the purge line prints fine but the object wont.

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2

Re: something knocking and its printingnvery thin.

nate44139 wrote:

i have been printing with my da vinci 1.0 for a week and had to change the filliment. i dont know whats wrong because the purge line prints fine but the object wont.

Have you cleaned your glass and put down fresh glue? Have you checked to make sure the bed height is correct. Not by the auto level but a visual confirmation with your eyes and a gauge like a strip of paper. The bed actually pivots on the middle front adjuster so it can be set in a way that the right side is fine for the purge line but the rest of the bed could be to low to get a good stick.

Printing since 2009 and still love it!
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Re: something knocking and its printingnvery thin.

Ill have to try that when i get home. thanks

4

Re: something knocking and its printingnvery thin.

I tried to uncloge it and it helped alot. I tried adjusting the bed height to where it will calibrate successful. This helped with most of the thin printing. But now it is "over printing".  I have no idea whats going on now. when i say over printing i mean it looks like its dragging something through mud. it just drags the plastic. i haven't let a full print finish and when i cancel the print it drags all this  plastic across the build plate and its all over the nozzle.

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Re: something knocking and its printingnvery thin.

nate44139 wrote:

I tried to uncloge it and it helped alot. I tried adjusting the bed height to where it will calibrate successful. This helped with most of the thin printing. But now it is "over printing".  I have no idea whats going on now. when i say over printing i mean it looks like its dragging something through mud. it just drags the plastic. i haven't let a full print finish and when i cancel the print it drags all this  plastic across the build plate and its all over the nozzle.

I've been experiencing similar issue with the nozzle dragging through the print, and prints going completely out of wack and making bird nests. From reading around, there are other things you may want to consider. The extruder nozzle may be partially clogged, there are several threads on here explaining the cleaning procedure. Soaking the nozzle in acetone and putting it under a blow torch seem to help a lot of folks, something I have yet to try. Poking it with a wire provided doesn't do much. The other thing that I've been reading is the hot-end heater cartridge, the one with two red wires is garbage and is recommended to be replaced as the wires on the original have a poor connections. Don't be alarmed, those things are cheap, easy to replace, and seem to be quite common of an issue. Can someone shine some light on to this.

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Re: something knocking and its printingnvery thin.

Ive had some issue with this until I leveled the bed with 3 pieces of paper as a thickness guide in all four corners. 
On the auto calibrate, it would read successful but didnt seem accurate, as it was plowing and building up material on nozzle, sometimes dislodging the print and making spaghetti.
Now when I print, I watch the first few layers, especially the outer extremities of the print, to see if the layer looks 'squashed' or thinned out and not sticking well.  I adjust the 3 bed screws as its printing those layers to tune it better.
If you can get the first layers to stick, try printing on a raft so your main print is above the problem area.

7 (edited by Menneset 2014-12-07 00:04:52)

Re: something knocking and its printingnvery thin.

Knocking and printing thin does sound like a calibration issue. I also calibrate my print bed manually. It seems more accurate and is certainly a lot faster. To do this, you will need a flashlight and a regular business card. Start a demo print and as soon as it starts printing the purge line turn off the printer. (Leave the printer off while you calibrate the bed, stepper motors generate electric current when moved manually and I do not know if the DaVinci electronics are protected against that.) Move the extruder to a point over each of the adjustment screws and slide the business card between the nozzle and the glass bed. At each point slide the card back and forth a bit as you adjust the tension screws. You want to just be able to feel the nozzle start to grab the card. When you have those three points set, check the other corners and the middle, but they should be good--if not make just the smallest of tweaks to get them there.

Another lesson learned is, in my experience, hairspray works far better than the glue or blue tape to prepare your print bed. Hold a piece of paper behind the bed so you don't spray the metal bars behind it. The first time, put a good even coat, but not to thick. It seems to adhere better if the bed is a little warm when applied. You will only need to refresh it with a quick spritz every 10 or 12 prints. If you need to clean it off your bed, a razor blade on a cold bed works great. (Calibrate afterwards.) [Edit] Let the bed cool down before you try to remove the print. If you use the hairspray technique, all you will need to do is just pick the print up.