Hi
I would like to make a watch winder (to keep an auto watch runing). I have made a simple one already but would like to have a go at a more sophisticated one.
For my next one i intend to use a dc motor with gearbox that will rotate about 8 rpm (i have seen a 12v one). I would like it to rotate in one direction for a period of time, stop and then reverse for the same period of rotation.
The period of time is not critical as auto watches cannot be overwound. The more sophicated bought models rotate for about an hour in each direction with a few minutes pause inbetween then stop.
I have a very limited knowledge of electronics but am practical, can follow instructions and can solder. I have gleaned some information fromvarious sources and have been told:
a 555 timer would do the job
long run and pause periods are not practical because of the resistors and capacitors needed.
If i could make one that would run for a few minutes, pause for a few seconds and reverse for a few minutes that would be great. If it could do this for about an hour and turn off that would be a bonus but i am aware of my limitations.
Thanks in advance
Gary
I would like to make a watch winder (to keep an auto watch runing). I have made a simple one already but would like to have a go at a more sophisticated one.
For my next one i intend to use a dc motor with gearbox that will rotate about 8 rpm (i have seen a 12v one). I would like it to rotate in one direction for a period of time, stop and then reverse for the same period of rotation.
The period of time is not critical as auto watches cannot be overwound. The more sophicated bought models rotate for about an hour in each direction with a few minutes pause inbetween then stop.
I have a very limited knowledge of electronics but am practical, can follow instructions and can solder. I have gleaned some information fromvarious sources and have been told:
a 555 timer would do the job
long run and pause periods are not practical because of the resistors and capacitors needed.
If i could make one that would run for a few minutes, pause for a few seconds and reverse for a few minutes that would be great. If it could do this for about an hour and turn off that would be a bonus but i am aware of my limitations.
Thanks in advance
Gary