This is just for your entertainment and something to read .....I am now messing around with FE outboards and with the RPM potential of an FE outboard , I dug this out my toolbox to check the new CNC props.....
History.....
In 1974 when I became introduced to RC boating I started with a K&B 3.5 outboard......It didn't take me long to see a very weak link with the motor was the prop bearing......After a few runs the prop bearing became very loose and sloppy.....This attention to prop balance precipitated the jeweled balancer development and this simple prop balance checker......
This was a simple way to physically check and physically "feel the balance" of a prop prior to running it on the boat......
Every Dremel comes with a 1/8" collet ......so I just took a piece of 1/8" drill rod and slid some K&S telescoping tubing over the shaft up to 3/16" , and then loctited it all together on the 1/8"shaft ....
I then installed a drive dog on the shaft and shazaam I had a way to physically check the props balance before running it on the boat.....
You just slide on a prop and a piece of fuel tubing to hold it , slip it in a dremel turn it on and you can immediately feel the vibration of a running prop.......
Depending on how anal you are you can really ace the balance of your props......
I personally use this little Dremel 7000 [max 14K RPM] just because I can keep it in my toolbox and this is all you need to check the dynamic balance of a prop....
If anybody is interested in this tool I will make a sketch and try to post it or email it to you......
Enjoy ......This is just a product of 47 years of RC boating.....
History.....
In 1974 when I became introduced to RC boating I started with a K&B 3.5 outboard......It didn't take me long to see a very weak link with the motor was the prop bearing......After a few runs the prop bearing became very loose and sloppy.....This attention to prop balance precipitated the jeweled balancer development and this simple prop balance checker......
This was a simple way to physically check and physically "feel the balance" of a prop prior to running it on the boat......
Every Dremel comes with a 1/8" collet ......so I just took a piece of 1/8" drill rod and slid some K&S telescoping tubing over the shaft up to 3/16" , and then loctited it all together on the 1/8"shaft ....
I then installed a drive dog on the shaft and shazaam I had a way to physically check the props balance before running it on the boat.....
You just slide on a prop and a piece of fuel tubing to hold it , slip it in a dremel turn it on and you can immediately feel the vibration of a running prop.......
Depending on how anal you are you can really ace the balance of your props......
I personally use this little Dremel 7000 [max 14K RPM] just because I can keep it in my toolbox and this is all you need to check the dynamic balance of a prop....
If anybody is interested in this tool I will make a sketch and try to post it or email it to you......
Enjoy ......This is just a product of 47 years of RC boating.....
thanks
