MIFO - Semi-automatic Film Processor by michaelfowler

Last crawled date: 2 years, 11 months ago

MIFO - Semi-automatic Film Processor
(Why MIFO? Why JOBO? - Find the answer to Both)
Well Here it is, a semi-automatic temperature controlled water bath
film processor. I have included gears for Nikor (Stainless Steel)
and Patterson tanks. If there is a different tank out there (other than JOBO)
Get a hold of me with your tank diameter and I will make a Gear for it.
Unit Running - https://vimeo.com/544118649/3395e64be6
Unit and Timer Running - https://vimeo.com/544118570/4d8968fa8f
A ZIP file of all the necessary files and all the individual files for the project are
available off my box server here (including full size pics):https://app.box.com/s/0mdurfhsfmk2tij5mmiolwlv1nqgumg4
Take the Top off and it makes a great tray to fill and empty the tanks, hold chemicals etc.
Any Sous Vide cooker out there can be used to control the water bath temperature.
I would probably go this route:https://www.amazon.com/dp/B07BKSH4KY/ref=cm_sw_em_r_mt_dp_CXAGTRDGARRX90T2P758?_encoding=UTF8&psc=1
Pretty nice features for the price. I happened to already have the Joule.
BONUS -You can also cook the BEST STEAK you have ever had. - REALLY!
I used the same motor form the Poorman's JOBO project
HERE: https://www.thingiverse.com/thing:4709155
Here is the link to the Motor:https://www.amazon.com/dp/B00BX54O8A/ref=cm_sw_em_r_mt_dp_09O8FbJGXP10R
Alternative Motor -https://www.amazon.com/dp/B072N84JX7/ref=cm_sw_em_r_mt_dp_D0QA1W1X2WK0DBC7AVA8
O-rings (1-1/8 x 1 x 1/8") on the tank support and the holes in the tank rollers
are also off center slightly to give some up/down agitation to the tank.
3 Small bumps on the rollers indicate the high side of the roller.
Smaller O-rings or grommets cut in half are used as "Stops" on the rods to keep
things from sliding around.
RODS - 5/8" aluminum rods but I would think stainless or even carbon fiber would work.
My rods were 12 5/8" long
There is also a Motor hook on a 1/8" Bungee to prevent the motor from accidently taking a bath
and can be moved the the opposite side of the tote to keep the gears meshed.
But anything other than light pressure will cause the motor to bind.
The tank should run TOWARDS you and the bite of the gears alone will keep them together.
Tank support rollers are printed slightly small ID - use 80 grit sand paper to make them fit
and spin freely on the rods you use.
The tote used for the project is a Muscle Rack 5 Gallon tote
11.8"Wx16.1"Lx8.1"H - Model PT5HD
Once you have built the rail assembly you can properly determine where to cut the
tote edges - I used a Dremel with a cut off wheel.
Need to print List and Settings.
Printer settings
.20 - 20% infill unless Noted
(If placed properly No supports are needed.)
Two -
Tank ends
Tank end to rod end supports
Rod end Holders
Bumpers - Print 100% infill with MAX cooling
One-
Drive Arm
Rod Spacer Sliding
Rod Spacer Upright
Motor Drive Gear
Motor Cover
Motor hook ( Print with MAX cooling)
Various
The number you need of Tank Rollers - Normally 4
Gear to match your Tank (May need a wrap or two of electrical tap for a good fit).
Timer - If Desired
All Three pieces Front Back and switch support
4 Small Sheet metal screws to hold the timer box together
A small piece of 1/8 bungee cord.
A 12 volt 1 amp power supply
Timer schematics and code as well as part lists are available off my box server here.https://app.box.com/s/0mdurfhsfmk2tij5mmiolwlv1nqgumg4
There is a separate read me in the Countdown timer Nano folder also.
It contains specific info on the Timer build.