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Hello. I printed about a month without any problems. Today start printing and head began to move jerkily in some places.
Outside square prints Normal. but when there is a filling is about a 1 cm from the edge begins pull is enough and the influx of plastic up.
for the first 7-9 layers printer equalizes layers. Also im special calibrated so that the nozzle does not even touch the paper. And when I start printing I hear hit nozzle of glass. What problem ?
[img]http://cs620422.vk.me/v620422033/15ca4/MiszeAoiXbw.jpg[/img]

Occasionally you have to go back to the basics, and check the calibration at the four towers, make sure your arm joints are moving freely and not bound up. Check your cheapskate and belt adjustments also.

Mac,

I think that must be my problem also, I haven't been calibrating the fourth tower !

nitewatchman

AsEsm wrote:Today start printing and head began to move jerkily in some places.[img]http://cs620422.vk.me/v620422033/15ca4/MiszeAoiXbw.jpg[/img]

The jerkiness can be the result of sticky or stuck pivots on the arm universal joints. Good idea to check these and lightly lube.

Mac is correct, sometimes you just have to stop and calibrate again. I have had MUCH better results carefully calibrating using a 0.004" (.1mm) steel feeler gauge. Adjust until the gauge will slide snuggly under the nozzle without wedging the head up. Tedious but worth it.

nitewatchman

Damn fingers weren't keeping up with my thoughts. Or I could blame auto correct,,,,

i fix jerks (head hit the cooled unevenly plastic). But now i have another problem with calibration.
If i set height of calib. screw that they printed the outer radius (as badly as in the picture) I have a problem with center height, Nozzle very low or very high (i try change radius from 129.50(nozzle is too high) to 130.50 (nozzle very low) my step was .2 (for example i try 129.50 -> 129.70 -> 129.90)
best radius (as it is written in the manual. Same height in all postion) was 130.15, but outer radius was:
[img]http://cs619126.vk.me/v619126033/127f3/qg2eeUFdkRE.jpg[/img]