Anyone know how to use the Durst RCP 40 Vario?

[koraks]

Or does anybody know how to convert RCP 40 to RA-4?

Same as the RCP20: https://tinker.koraks.nl/photography/roll-another-one-modifying-the-durst-rcp20-for-ra4-processing/
The machines are identical apart from the larger width of the RCP40 AFAIK.
The gears and belt you need can still be ordered from Conrad.
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