I did a Roto Pool a couple of years ago for a friend. It was a shit
ton of work, but it was fun and challenging and paid off with a "best
woodrail" award at MPE.
Major differences to wedgies?
- A lot more logic is in the steppers, including the startup
sequence. If you are not used to it, this can be a puzzler. I
documented it and put it up on Pinwiki - but it got jacked around into
an odd spot, so here it is:
Roto Pool Start Sequence:
1. Push start button, pulls in start S relay
2. Start relay resets 100K unit, through NC switch on motor 1C closing
switch at -1 position on 100K unit
3. Closed switch at -1 position pulls in U relay
4. U relay pulls in ball release coil, which remains on by the U
relay, a switch on the unit itself and a flip/flop on the N relay
5. Switch on the U relay is closed, allowing pulsing of the 10K unit
though switch on motor 1A
6. 10 K unit continues to pulse until it hits position 9 or 19 or 29
on the 10K unit, then the "bridge" there, in series with the NO switch
(which closes once/pulse) on the 10K unit pulls in the 0-9 coil relay
7. The M relay pulls in and is held in by it's own switch and a NC
switch on the 10K unit and remains on until the 10K unit steps. The
100K step moves the 100K stepper off the -1 position, opening the
switch on that keeps the U relay pulled in.
8. The U relay releases – the 10K unit can no longer be pulsed though
the switch on the U relay.
9. The N flip/flop switch activates at some point, releasing the ball
release coil (IMO, this is a poor design, leading to a burnt coil for
any number of reasons (no FMEAs at Gottlieb®?)
Parts are a lot cheaper and lighter, so that will cause you some
EVERYTHING needs to be gone through. Time is your enemy here. You
will likely deal with rusted and seized parts. Coil sleeves are brass
and may need cleaning or you may have to replace the whole coil.
Bakelight discs may need replacing. Note that part numbers are
different due to slight changes and are often not interchangeable. My
recommendation is to spend $20 on the parts list. I did and it was
money well spent. Relays are different, but work the same.
Pictures, or it didn't happen?