30-11-2012, 10:29 AM
Hi,
Numpty you certainly are not David.
Your bevel gear idea is excellent and shows you are always thinking about what you are doing and also not taking anything for granted.
You have already highlighted a weakness in the original design; the "O" ring drive and you went about solving it which to a degree you have been highly successful so don't be too hard on yourself.
Having owned an AVO Douglas coil winder with a similar rubber drive wheel I had already spotted that the bevel gears would give a fixed rather than variable drive. I still think it possible that you could be on the right track and with a bit of experimentation could still use fixed gears not necessarily bevel. Plastic gears can be obtained with many teeth choices.
I've wound many coils over the years but on the whole only ever used a few wire gauges. To expand your idea would it be possible to modify the drive to accept change gears similar to an engineering lathe which in many cases uses straight gears for threading if a gearbox is not installed?
I don't wish to steal your thunder because you came up with what I consider a very good alternative to the original drive demonstrating to novices not to simply copy other peoples ideas to the letter but to think for themselves.
Making small spindles to accept gears is easy for you David as you own such a delightful Lorch clock-makers lathe; a die nut would easily run a tread on the spindles and a bit of fabrication would give the necessary adjustment in order to mesh the assorted gears. If you recall I actually did a similar thing when I restored my AVO wave winder cutting 45 cast iron gears.
I like your train of thought David and it is to be fully encouraged; Numpty definitely not; resourceful describes you much better. Keep up the good work and I love reading such unusual posts.
Please give your gear idea deeper thought and take a pat on the back; I'm all for some experimentation; it's much more interesting than simply copying and immensely satisfying to succeed.
Kind regards, Col.
Numpty you certainly are not David.
Your bevel gear idea is excellent and shows you are always thinking about what you are doing and also not taking anything for granted.
You have already highlighted a weakness in the original design; the "O" ring drive and you went about solving it which to a degree you have been highly successful so don't be too hard on yourself.
Having owned an AVO Douglas coil winder with a similar rubber drive wheel I had already spotted that the bevel gears would give a fixed rather than variable drive. I still think it possible that you could be on the right track and with a bit of experimentation could still use fixed gears not necessarily bevel. Plastic gears can be obtained with many teeth choices.
I've wound many coils over the years but on the whole only ever used a few wire gauges. To expand your idea would it be possible to modify the drive to accept change gears similar to an engineering lathe which in many cases uses straight gears for threading if a gearbox is not installed?
I don't wish to steal your thunder because you came up with what I consider a very good alternative to the original drive demonstrating to novices not to simply copy other peoples ideas to the letter but to think for themselves.
Making small spindles to accept gears is easy for you David as you own such a delightful Lorch clock-makers lathe; a die nut would easily run a tread on the spindles and a bit of fabrication would give the necessary adjustment in order to mesh the assorted gears. If you recall I actually did a similar thing when I restored my AVO wave winder cutting 45 cast iron gears.
I like your train of thought David and it is to be fully encouraged; Numpty definitely not; resourceful describes you much better. Keep up the good work and I love reading such unusual posts.
Please give your gear idea deeper thought and take a pat on the back; I'm all for some experimentation; it's much more interesting than simply copying and immensely satisfying to succeed.
Kind regards, Col.
Happiness is a wreck of a cabinet to restore.
