looking to cut a 9t or 10t sprocket, has anyone seen any software or somethign online that will let me print such a thing 1:1 on paper to use as a template, I've seen things for cnc in dx code and stuff but i'm building by hand with hand tools....
low T sprocket design
- Thread starter flez1966
- Start date
def215
10 kW
try this software:
http://www.idleamusements.com/sprocketeer.htm
its called sprocketeer(thanks for the link amberwolf!
)
its free to download and ive used it before to make my 7t sprocket.
http://www.idleamusements.com/sprocketeer.htm
its called sprocketeer(thanks for the link amberwolf!
)its free to download and ive used it before to make my 7t sprocket.
LI-ghtcycle
10 MW
def215 said:try this software:
http://www.idleamusements.com/sprocketeer.htm
its called sprocketeer(thanks for the link amberwolf!
its free to download and ive used it before to make my 7t sprocket.
I'm curious, do you notice any significant wear with a smaller sprocket like that? I would think you would with such a small cog!
def215
10 kW
hmm. i have sprocketeer v1 and i use it with cadSTD lite version and it works for me. i also have autocad and it works on there as long as i open it as a dwf file because i saved it as one. im not so sure about using the g-code for it.
not really, but then again, i dont use my bike as often as i should. i only have about 500 miles on my bike since ive built it last year which im sure is nowhere near some of these guys have on their bikes.
im actually using a 6t #40 chain at the moment and its still working, so far. i do run a chain guide wheel to keep everything in line for the front and rear sprocket. since the 6t is the motor gear, i tried to give it the most wrap as possible, close to 180 degrees. but one thing about it is that it is quite noisy, which i dont really mind.
LI-ghtcycle said:I'm curious, do you notice any significant wear with a smaller sprocket like that? I would think you would with such a small cog!
not really, but then again, i dont use my bike as often as i should. i only have about 500 miles on my bike since ive built it last year which im sure is nowhere near some of these guys have on their bikes.
flez1966 said:
im actually using a 6t #40 chain at the moment and its still working, so far. i do run a chain guide wheel to keep everything in line for the front and rear sprocket. since the 6t is the motor gear, i tried to give it the most wrap as possible, close to 180 degrees. but one thing about it is that it is quite noisy, which i dont really mind.
well I have a plan
use sprocketeer to display on screen the little picture of my sprocket, take a screen grab with the prtscn key, load the image into mspaint or similar, then print it out at like 80%/90%/100%/110% and see which is nearly right, then fine tune in 1% increments till its right, glue to steel and then start to cut and file...
on a good note my 14t freewheel arrived this morning which is goint to be for the bike motor, the sprockets i'm working with here are for the trailer motors
edit: Found a lovely drawing guide...
http://www.gizmology.net/sprockets.htm
guess its time for a sharp pencil and some old school paper...
use sprocketeer to display on screen the little picture of my sprocket, take a screen grab with the prtscn key, load the image into mspaint or similar, then print it out at like 80%/90%/100%/110% and see which is nearly right, then fine tune in 1% increments till its right, glue to steel and then start to cut and file...
on a good note my 14t freewheel arrived this morning which is goint to be for the bike motor, the sprockets i'm working with here are for the trailer motors
edit: Found a lovely drawing guide...
http://www.gizmology.net/sprockets.htm
guess its time for a sharp pencil and some old school paper...
dontsendbubbamail
10 kW
- Joined
- May 28, 2008
- Messages
- 718
flez1966 said:
If you are talking bicycle chain, a #40 sprocket has the same pitch and barrel diameter. You can down load dxfs of sprockets from McMaster-Car and with a little scaling in a cad app you will have a full sized drawing. A #40 sprocket can be cut roughly in half and used with bicycle chain.
Bubba
Well success, sort of....
I got this far...
but...
My pusher/trailer has had a wheel stolen....
I was working out the front on the drive, it started to rain, i gave up for the day and just left the assorted bits covered to protect them a bit, I brought the power tools in but left the hand tools/screwdrivers etc out all night, they were still there, but the wheel i had off loose for measuring the motor/chain length had gone.
other pics of sprocket being built here
http://flez1966-beerbuggy.blogspot.com/2011/02/little-sprockets.html
I got this far...
but...
My pusher/trailer has had a wheel stolen....
I was working out the front on the drive, it started to rain, i gave up for the day and just left the assorted bits covered to protect them a bit, I brought the power tools in but left the hand tools/screwdrivers etc out all night, they were still there, but the wheel i had off loose for measuring the motor/chain length had gone.
other pics of sprocket being built here
http://flez1966-beerbuggy.blogspot.com/2011/02/little-sprockets.html
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