Poormans Jobo - Film Tank Agitator - Rock/Bullet Tumbler

thingiverse

I been working on this lil project also - a Poorman's JOBO. Works with all the tanks I tested and or own Nikor, Patterson, Yankee, GAF. I kept this a simple as possible. I started out with and Arduino controller and a bunch of other BS I didn't need. ( adjustable legs etc. ) I just set it on a book (or game box - grand kids were over ) inclined and vary it as necessary. To control agitation I just take it out of my sous vide cooker bath agitate and put it back in the bath (SIMPLE) and so small and compact. Plus big bonus when I use Cinestill DF96 for B&W continuous agitation, no more walking around the yurt with a developing tank in my hand . I did keep the adjustability between the front and back for different sized tanks. Bearings are just standard skateboard size and the motor is a small 12VDC off amazon 60 RPM (cheap). The darn thing works good and I have printed a couple more for tumbling rocks in a coffee cans and one with walnut hulls for cleaning the brass cases on my shooting bench. Holes are also availabe as additional support between the front and back for 1/8 dowels or shish kabob (bamboo) sticks. The original thingy file I remixed is here but little remains of the original. https://www.thingiverse.com/thing:2839491 1x Motor - https://www.amazon.com/dp/B00BX54O8A/ref=cm_sw_em_r_mt_dp_09O8FbJGXP10R 5x Bearings - https://www.amazon.com/dp/B07GJM9324/ref=cm_sw_em_r_mt_dp_6aP8Fb7HYDN0M?_encoding=UTF8&psc=1 2x - O-rings for drive wheel 1 1/8 OD x 7/8 ID 1/8" Wall - Hardware store 1x - A surplus 12VDC (my was 1 amp off a old router) wall transformer - Motor Case has a provision for a small rubber grommet 1x - A Small SPST - Junk Box