Hi Hood
Silly old me  I was so concertrated on the 12/24v supply swapping that I overlooked that the relay also has to swap the return wire and that I forgot to ad one to the circuit board

Bert

Hi Hood
I have now got my power supply sorted out although it is a bit bigger in size then I would like but OK for bench testing

I gave up with the two outputs from the original transformer and used the 24vdc output and took a spur of it and regulated that down to 12dc for the reverse

Have had tool post running under relay control using a 5v battery to trip relay all seems well

I plan to get a wall wart type of power supply for it obviously 24vdc output

The current draw in forward 24v speed is 0.14 amps and when reversing but not stalled it is also 0.14 amps, when it reaches it's stop point and stall's the motor to hold its position against the ratchet it draws 0.36 amps.


Do you recon a 0.500 amp supply would be OK

bert

 

Sounds like it should be but I am not an electrical guy
Hood

Me neither
I was kind of hopping with fingers crossed for a different reply  
More like yes that's exactly what you need

As I am of to bed now maybee some kind hearted sole will post and tell if I am wrong whilst I am in land of nod

Well if you have measured the currents then I dont see why it wouldnt be sufficient but as you say hopefully someone will come along and give you a definitive answer.
Hood

Got a 24vdc 0.5amp unregulated wall wart

It out puts 32v with no load gives good forward speed though

When regulated down to 12v it does not give out enough power to move it properly at a reduced speed,  struggles like hell and stalls before reaching ratchet stop

Finally regulator overheated and burnt its self out

Got hold of a second wall wart rated at 12vdc

Now using both system works (how long it will hold out when stalled I don't know)

bert

have a nose at the ratchet assembly, and grease it well.

Many thanks for that  angle tech
I will have to locate it as I don't know where it is or how to get to it
bert