Durst ceased production of their enlargers in 2006 because of lack of demand. Durst Pro USA continued to fill that void until its owners untimely death recently where the inventory was allocated to a few interested takers and the rest hauled off so there is no option to order a new one. Your option is to find a used part because trying to find a machinist to reproduce such a complex part to that tensile spec will be prohibitively expensive. Hope you got the unit for the effort of hauling it off because without the ability of raising and lowering the column it is a repository of parts unfortunately. I know that is not what you want to hear but it is what it is. What you learned is that you always make sure that the enlarger is capable of its basic functions before you proceed forward. Onward!
Tin Can
2 seconds on google found this, not the same design, but can do the same thing
A far heavier duty Saltzman uses this type with chain
https://www.rushgears.com/gear-types...RoCSQUQAvD_BwE
and this https://www.mcmaster.com/gear-boxes
Tin Can
For ten years in this thread I always recommend the L184 if one is not an electrical hobbyist (like myself), because 'mechanical items are easier to fix.' So maybe this is not the case for you guys with the bad gears?
I know not many have read all 695 posts, but my enlarger was a big paper weight when I got it because without a working electronic motor control board, THERE IS NO MANUAL FOCUS KNOB.
IC, I'm fortunate in that I have both the Hemot motor and the manual head crank, both with good gears!!!
I've looked through these and boston gear and the main issue is this gear has 17 teeth and that the pin is on the collar above the gear. These 2 things are apparently a holy grail of gear design.
I’ve been looking for a large format enlarger for a while. Like you said I wanted one that had no circuits. This gear was a total surprise and probably the hardest thing to replace.
Any ideas on converting to a bulb that doesn’t get hotter than the sun?
Sent from my iPhone using Tapatalk
Bookmarks