Jobo CPA-2 first motor upgrade - use with Expert drum 3005?

[GDI]

I have seen some threads stating that the safest way to use a 3005 drum is with a post-20,000 serial number CPX-2 or 3, or a Bessler-type motor roller. I have a CPA-2 with serial number 11,xxx which I believe is the first double bearing version. I have tested it with an empty 3005 drum and it seems to turn fine and doesn’t appear to be overly stressed.

I just got the unit and it is in really nice condition and I have developed 120 in it with great results. I am coming from a CPE-2 and the difference in robustness is significant. But I don’t want to damage the unit, so what would you say about continuing to use the 3005 as long as the rotation seems consistent and not sluggish (I have it set to one way rotation now as I have heard it creates less stress on the motor)? If it is likely that I will cook the unit, I may just pass it along and go for a later model or even new CPP-3.


And one last question regarding the 3005, does anyone have the instructions for processing 4x5 sheets in it that were previously floating around? The links I found to them were dead.

Thanks!

 

[Sirius Glass]

I use the 3010 Expert Drum which I use to develop up to 10 4"x5" sheets. I use a Jobo CPP2 processor and the results for black & white and color are always consistent and without problems.

 

[GDI]

I use the 3010 Expert Drum which I use to develop up to 10 4"x5" sheets. I use a Jobo CPP2 processor and the results for black & white and color are always consistent and without problems.

Do you think it would work ok to just process 5 sheets of 4x5, knowing that it may waste chemicals. I have two 3005’s so I may try to find a 3010 to trade one of them for.

Also, which version of the motor does your cpp (serial number ) have?

 

[Sirius Glass]

Do you think it would work ok to just process 5 sheets of 4x5, knowing that it may waste chemicals. I have two 3005’s so I may try to find a 3010 to trade one of them for.

Also, which version of the motor does your cpp (serial number ) have?

The developer is not wasted for five negatives or even one since I reuse the developer until it has been used up or in the replenished mode with means it lasts almost forever. I now only use replenished developer which gives better grain and tonality.

 

[mshchem]

I have seen some threads stating that the safest way to use a 3005 drum is with a post-20,000 serial number CPX-2 or 3, or a Bessler-type motor roller. I have a CPA-2 with serial number 11,xxx which I believe is the first double bearing version. I have tested it with an empty 3005 drum and it seems to turn fine and doesn’t appear to be overly stressed.

I just got the unit and it is in really nice condition and I have developed 120 in it with great results. I am coming from a CPE-2 and the difference in robustness is significant. But I don’t want to damage the unit, so what would you say about continuing to use the 3005 as long as the rotation seems consistent and not sluggish (I have it set to one way rotation now as I have heard it creates less stress on the motor)? If it is likely that I will cook the unit, I may just pass it along and go for a later model or even new CPP-3.


And one last question regarding the 3005, does anyone have the instructions for processing 4x5 sheets in it that were previously floating around? The links I found to them were dead.

Thanks!

Jobo-USA

jobo-usa.com

3005 information is for 5x7 or 8x10.

 

[GDI]

Jobo-USA

jobo-usa.com

3005 information is for 5x7 or 8x10.

Yes I’ve seen that - I just want to confirm that I could load 4x5 sheets rather than 5x7 or 8x10. I had read that someone ( not Jobo) had documented that process. I can’t see why it won’t work if you just don’t push the sheets down so far it would be hard to remove them.

Thx