- Thread starter Shox Dr
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Shox Dr
Chief Engineer to Carlos Fandango
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Hotrodder, thanks, and interesting, all about cutting meshed gearing though, I've done a search (google) for Sprocket calcs/cutting, and all that comes up is how to workout sprocket ratios for MC rear wheel gearing.
I can do it in Coreldraw, however I was hoping for a bespoke prog would do a lot of the calcs for me
I can do it in Coreldraw, however I was hoping for a bespoke prog would do a lot of the calcs for me
I don't know how you would do it on the computer but if you have the original sprocket to work from then making more should be quite easy to calculate.
Find the diamater of the drill bit needed to cut the bits in between the teeth out.
Measure from tip to tip - this part is crucial.
Once you have the measurement of the tips you can calculate it as :-
Teeth needed x distance between = Circumference
That would be the overall size of your sprocket.
To find out the radius/diamater do this :-
Circumference / Pi (3.141) = Radius (squared)
I can't remember how to work out the square root but if you have teenage kids borrow their calculator as it has a button to do it for you
From this you can work out where to drill the holes through to give you the shape of your teeth.
Find the diamater of the drill bit needed to cut the bits in between the teeth out.
Measure from tip to tip - this part is crucial.
Once you have the measurement of the tips you can calculate it as :-
Teeth needed x distance between = Circumference
That would be the overall size of your sprocket.
To find out the radius/diamater do this :-
Circumference / Pi (3.141) = Radius (squared)
I can't remember how to work out the square root but if you have teenage kids borrow their calculator as it has a button to do it for you
From this you can work out where to drill the holes through to give you the shape of your teeth.
Hi to everyone.
I do not know if this URL will be useful to anyone. http://www.gizmology.net/sprockets.htm The site describes how to design a sprocket.
I do not know if this URL will be useful to anyone. http://www.gizmology.net/sprockets.htm The site describes how to design a sprocket.
graffian
Seer unto the end of his beard
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I saw a post somewhere from someone who had used the details in
machinery's handbook to program a cnc mill to produce a sprocket.
The sprockets didn't work, I think he said the ones you buy were
clearly slightly different.
I was going to do something that wanted slow gearing and I looked
around me for suitable bit's, as you do and a range rover flex plate
caught my eye, not sure whether I would make a worm and have stupid low gearing or use a gear to drive it.
machinery's handbook to program a cnc mill to produce a sprocket.
The sprockets didn't work, I think he said the ones you buy were
clearly slightly different.
I was going to do something that wanted slow gearing and I looked
around me for suitable bit's, as you do and a range rover flex plate
caught my eye, not sure whether I would make a worm and have stupid low gearing or use a gear to drive it.
NigelAylesbury
Member
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Send us the details
Cad program at work can churn these things out quick sticks
Cad program at work can churn these things out quick sticks
graffian
Seer unto the end of his beard
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If you have solidworks there is a gear drawing online, all you do is change the dp and number of teeth and it generates the gear, no idea if it's possible to alter it to a sprocket, but it might be.
There is a gear program that generates a gear it's called gearotic, or something like that, it's by the bloke who wrote mach,I don't know if it does sprockets. There is also a sprocket program, it generates G code I think, it's called something like sprocketeer
There is a gear program that generates a gear it's called gearotic, or something like that, it's by the bloke who wrote mach,I don't know if it does sprockets. There is also a sprocket program, it generates G code I think, it's called something like sprocketeer
