Page 3 of 3 FirstFirst 123
Results 21 to 25 of 25

Thread: Durst L1840 Parts Needed

  1. #21
    Drew Wiley
    Join Date
    Sep 2008
    Location
    SF Bay area, CA
    Posts
    13,628

    Re: Durst L1840 Parts Needed

    Oh my. That's unfortunate. There were a number of flavors of these Durst enlargers, and I haven't personally seen all of them. But as long as the focus rack motor is functional, it should do the trick fine. Of course, you could alter the design by using a Greenlee punch and try to find a shaft extension. A knob would be easy to acquire. But that would be a bunch of fuss which hopefully is not necessary.

  2. #22
    ic-racer's Avatar
    Join Date
    Feb 2007
    Posts
    5,394

    Re: Durst L1840 Parts Needed

    The focus on the Durst L1840 bellows is electronically controlled with a PWM system that ensures the upward focus and downward focus will be the same speed. There are 10 or so pages about the operation of the system in the big L1840 thread. If you need manual focus, replacing the L1840 assembly with that of a L184 would be your only option. I'd keep the electronic focus unless you have very long arms or you don't do big enlargements.


    I found the power supply and up-down buttons.
    I'd be interested in seeing that. Durst USA reverse engineered the EST1000 power supply (photos on apug) but they did not do the same for the ECU1000 (which has the focus motor controller). He was just re-building the ECU1000 supplies (as I had done to both of mine).

    I'd be interested to see you motor controller. Do you have a schematic for it?

  3. #23

    Join Date
    Feb 2012
    Posts
    28

    Re: Durst L1840 Parts Needed

    Here are pics of the power supply for the motorized focus. It appears to be separate from any other electronics.

    Click image for larger version. 

Name:	IMG_8192.jpg 
Views:	5 
Size:	44.5 KB 
ID:	197347

    Click image for larger version. 

Name:	IMG_8193.jpg 
Views:	5 
Size:	60.4 KB 
ID:	197348


    Quote Originally Posted by ic-racer View Post
    I'd be interested in seeing that. The usual L1840 focus motor is driven from electronics in the ECU1000 that sits between the legs of the L1840.

    Attachment 197346

  4. #24

    Join Date
    Feb 2012
    Posts
    28

    Re: Durst L1840 Parts Needed

    How much is AN glass for the Laraneg carrier? I definitely need some kind of glass because: 1) there is none; and 2) I can't figure out how to hold the negative in the negative carrier. I've heard reference to glassless carriers, but this is not one, is it? What are the little lever-slides on the inside of the carrier insert? Are they supposed to hold the glass or the negative (or both)?

  5. #25

    Join Date
    Feb 2012
    Posts
    28

    Re: Durst L1840 Parts Needed

    Hmmm, that is an interesting base; the base arms are parallel. Mine is not like that, as the base arms form a "V" in the middle. Maybe a L1840 on an L184 chassis as ic-racer suggested? I had assumed they were the same thing.

Similar Threads

  1. Replies: 666
    Last Post: 24-Jan-2020, 18:29
  2. Durst L1840 Repair/restoration Questions
    By mikestr in forum Darkroom: Equipment
    Replies: 2
    Last Post: 11-Mar-2012, 00:41
  3. Anyone buy the nice Durst L1840 on e-bay?
    By ic-racer in forum Darkroom: Equipment
    Replies: 30
    Last Post: 4-Mar-2012, 15:38
  4. Durst L1840 and RH Designs StopClock...can't get there from here?
    By Mark Carstens in forum Darkroom: Equipment
    Replies: 3
    Last Post: 2-Jul-2010, 11:31
  5. Durst L1840 B/W Enlarger Available
    By SPP in forum Darkroom: Equipment
    Replies: 0
    Last Post: 16-Jan-2008, 11:19

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •