Hi all. I am new to 3D printing and I recently finished building my first Kossel from Folger Tech with Marlin firmware and running Pronterface. I’ve been reading a lot of different sources on calibration but there is one major issue I cannot seem to overcome. After tuning each tower to its respective z0 along a circle, when I navigate to x0 y0 z0, the nozzle is 7mm above the print surface. Each time, I adjust the smooth rod offset to a larger number to attempt to correct the printer’s definition of flatness, but no matter how big a value I input, x0 y0 z0 is consistently 7mm above the print surface after re-tuning each tower to the correct z0. The larger smooth rod offset value is noticeable when I calibrate each tower’s z0 because the larger the value entered, the closer to the edge of the print surface It goes for the same x and y. I have also tried playing with the other offset values, but no matter what I do, I cannot seem to get the printer to travel along a z plane. As a side note, I have already disable EEPROM and I verified my rods are all a consistent length. Any help would be greatly appreciated.
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I am expecting delivery of a Kossel printer in a couple of weeks so I haven’t had chance to play with a Delta before but in preparation I was reading this calibration guide for Kossel http://builda3dprinter.eu/build-manuals/kossel\_mini\_build\_manual/calibration-2/ which seemed really useful. Hope it helps, until someone more experienced can chip in.
