If you had access to a CNC machine, would you be able to customize gear ratio

JerseyBrian · 04-09-2008, 08:50 AM

I'm wondering if it would be possible to machine a new gear off a CNC machine to change the gear ratio of a spinning reel. Sounds like a fun project

...if it's even possible

Does anyone have any idea which gear(s) or even what would have to be machined?

Thanks!

shanker · 04-09-2008, 09:47 AM

That might be a bit tougher than you could imagine, the spinning reel gears are very simular to the ring/pinion in a rear axle, and griding the right size gear teeth and making them synch would be very cumbersome, but possible, im sure you would have about 10x the cost of the reel in a set of gears once you got it right.

JerseyBrian · 04-09-2008, 09:57 AM

Quote:

Originally Posted by shanker

That might be a bit tougher than you could imagine, the spinning reel gears are very simular to the ring/pinion in a rear axle, and griding the right size gear teeth and making them synch would be very cumbersome, but possible, im sure you would have about 10x the cost of the reel in a set of gears once you got it right.

A few friends of mine are machinists and wouldn't mind trying to create something of interest for me rather than sitting around the shop and doing nothing

The gear isn't that big either so material costs wouldn't even be a factor for them. They would use the larger chunks of material that have already been scrapped. What would be the optimal metal? 316 SS? Anodizes aluminum? <--I fear that would break easily... It would probably be best if I sent them my entire reel too..

LEXPRO · 04-09-2008, 10:19 AM

what ratio would you be looking for?

JerseyBrian · 04-09-2008, 10:37 AM

Something higher than 4.9:1

If I could possibly increase the gear ratio anywhere from 5.7:1 to 6.2:1....I'd be peachie

shanker · 04-09-2008, 10:51 AM

I would worry about cranking power at that point though.

JerseyBrian · 04-09-2008, 10:55 AM

Quote:

Originally Posted by shanker

I would worry about cranking power at that point though.

What do you mean? Isn't my arm the cranking power?

Are or you talking about the gears it takes to crank the handle or something? I honestly don't know the internals of a spinning reel too much so I can't visualize what is involved in the cranking and gearing of a spinning reel.

alantani · 04-09-2008, 01:34 PM

the center point of the main gear from the center point of the pinion gear would have to be the same. you would simply be changing the outer diameters of the main and pinion gears to maintain that same distance between center points of both gears. then you would have to find the proper gear tooth size to match both gears. i believe there are computer programs that will do this for you.

it's all done by computer now. alan

JerseyBrian · 04-09-2008, 02:16 PM

Quote:

Originally Posted by alantani

the center point of the main gear from the center point of the pinion gear would have to be the same. you would simply be changing the outer diameters of the main and pinion gears to maintain that same distance between center points of both gears. then you would have to find the proper gear tooth size to match both gears. i believe there are computer programs that will do this for you.

it's all done by computer now. alan

Exactly the post I was waiting for! Thanks Alan! I'm going to go and mess with some of my older, junk reels tonight and take a better look at things

gimmedeal · 04-09-2008, 02:43 PM

Which spinning reel?

Fred

04-09-2008, 08:50 AM	#1 (permalink)
JerseyBrian Senior Member Join Date: Mar 2008 Location: Philadelphia/New Milford Posts: 173	If you had access to a CNC machine, would you be able to customize gear ratio I'm wondering if it would be possible to machine a new gear off a CNC machine to change the gear ratio of a spinning reel. Sounds like a fun project ...if it's even possible Does anyone have any idea which gear(s) or even what would have to be machined? Thanks!

04-09-2008, 02:43 PM	#10 (permalink)
gimmedeal Senior Member Join Date: May 2006 Posts: 161	Which spinning reel? Fred __________________ Tuna fishermen "STAND UP AND FIGHT"

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04-09-2008, 09:47 AM	#2 (permalink)
shanker Senior Member Join Date: May 2006 Posts: 170	That might be a bit tougher than you could imagine, the spinning reel gears are very simular to the ring/pinion in a rear axle, and griding the right size gear teeth and making them synch would be very cumbersome, but possible, im sure you would have about 10x the cost of the reel in a set of gears once you got it right.

04-09-2008, 10:19 AM	#4 (permalink)
LEXPRO Senior Member Join Date: Sep 2006 Posts: 105	what ratio would you be looking for?

04-09-2008, 10:37 AM	#5 (permalink)
JerseyBrian Senior Member Join Date: Mar 2008 Location: Philadelphia/New Milford Posts: 173	Something higher than 4.9:1 If I could possibly increase the gear ratio anywhere from 5.7:1 to 6.2:1....I'd be peachie

04-09-2008, 10:51 AM	#6 (permalink)
shanker Senior Member Join Date: May 2006 Posts: 170	I would worry about cranking power at that point though.

04-09-2008, 01:34 PM	#8 (permalink)
alantani Senior Member Join Date: Jan 2007 Location: saratoga, ca Posts: 151	the center point of the main gear from the center point of the pinion gear would have to be the same. you would simply be changing the outer diameters of the main and pinion gears to maintain that same distance between center points of both gears. then you would have to find the proper gear tooth size to match both gears. i believe there are computer programs that will do this for you. it's all done by computer now. alan

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