Master calibration post/list?

[allanonmage]

I finally got around to tinkering with my Printerbot LC again. I upgraded the Y rods from Lowe's specials to ones rated for 3D printers and now the Y axis wobbles a LOT less if I move it back and forth. Against good technician practices, I also changed out the X axis belt to the GT2 belt I had purchased a while back at the same time.

I remember doing the calibration, and tried to search the forums for the calibration guides, and was not able to find stickies or effectively able to use the search. Eventually I found one in the **software** section. I guess it's a software thing, but my first thought is that calibration is a hardware thing, so I was going crazy looking there. Can we get a global sticky with a calibration guide and links to other calibration related posts?
*edit* As I am searching for those posts, I'm updating this one to be that sticky, so it will be a good start.

Printrbot X Y Z axis and extruder [sic] calibration
Postby plexus » 15 Jan 2013 23:11
viewtopic.php?f=29&t=2189

Calibration Constants Tutorial
by RetireeJay » 13 Mar 2013 14:13
viewtopic.php?f=18&t=2763

Useful links (will expand at a later date)

Printer Calibration Gets messed up when power down??
viewtopic.php?f=29&t=6750&hilit=calibration

How to Calibrate your Printer
http://help.printrbot.com/Guide/How+to+ ... Printer/81

Search Results
http://help.printrbot.com/Guide/search/ ... alibration

Extruder Calibration
http://www.printrbottalk.com/wiki/index ... alibration


Tags:
calibrate, calibration, m92, m500, x, y, z, axis, calculate


Here's a visual of my current setup:

[RetireeJay]

I made this topic "sticky" for you.

RJ

[Mooselake]

How many tooth pulley?

Given the pulley tooth count you can determine the diameter of the pulley, the circumference, and then the amount it moves for each microstep - usually 3200 steps/revolution. I googled "gt2 reprap calibration" and found . For the very popular 20T pulley (which may not be the one you have), and the stock 16x microstepping/200 step per rev motor it works out to 80 steps/mm.

Calculated values for standard sized pulleys are always more accurate than the print/measure technique. If you find that your printed size is off most likely you'll need to calibrate your extruder and extrusion width better, not fiddle with the steps/mm.

Extruder calibration, as TutherJay might say, is a different container of squirmy critters. There's too many variables to calculate more than a starting point, and accurate calibration will rely on measuring, extruding, and measuring, possibly followed by tweaking things like the extruder multiplier. Here in the moosecave I've determined a "good enough" steps/mm value, and usually tweak the filament size to get an accurate width.

Kirk

[allanonmage]

[thawkins]

[Mooselake]

Bites the dust.

I'm starting to believe that end of quota period in Pakistan thing.

Kirk

[Sigmoid]