Sig Micro Ballons

[Blue Hog ridr]

http://www.sigmfg.com/IndexText/SIGMB001.html

Here is a product I used to use quick frequently when I was into crashing expensive RC airplanes. Actually it has many uses in the building stages mainly.

I bought a ferulless shaft from a builder on AZ some time ago.
If I remember correctly, I believe that he said he bores out the first few inches of his shafts. I can't remember what depth. Then he filled it in with epoxy.
I didn't quite understand why you would bore the end of the shaft for less end mass and then fill it with something thats quite possibly heavier.
Defeats the purpose of less end mass and low deflection. Anyway, whatever he did, the shafts were quite decent players so I'm not complaining. I liked them.

In the near future, I will try building a few shafts without ferulles.
If a person were to bore out the end of the shaft, can you see a use for using these Micro Balloons to fill the void.
Depending on what glue you use, these are very light and exceptionally strong.

Micro Balloons are very light and mix well with epoxy, altho I mixed them with resin and used them when I used fiber glass cloth on the leading edge of a wing.


Does anyone think that boring the first few inches of a shaft is a good way to go, and if so other than epoxy is there a lighter alternative?
Thanks,
Terry.

 

[Guerra Cues]

It is funny you brought this up Terry.
I actually core some of my handles, forearms with West System and this magic add-on Micro Baloons. Just enough until the epoxy turns almost white.


Sent from my iPhone using Tapatalk

 

[will8834]

http://www.sigmfg.com/IndexText/SIGMB001.html

Here is a product I used to use quick frequently when I was into crashing expensive RC airplanes. Actually it has many uses in the building stages mainly.

I bought a ferulless shaft from a builder on AZ some time ago.
If I remember correctly, I believe that he said he bores out the first few inches of his shafts. I can't remember what depth. Then he filled it in with epoxy.
I didn't quite understand why you would bore the end of the shaft for less end mass and then fill it with something thats quite possibly heavier.
Defeats the purpose of less end mass and low deflection. Anyway, whatever he did, the shafts were quite decent players so I'm not complaining. I liked them.

In the near future, I will try building a few shafts without ferulles.
If a person were to bore out the end of the shaft, can you see a use for using these Micro Balloons to fill the void.
Depending on what glue you use, these are very light and exceptionally strong.

Micro Balloons are very light and mix well with epoxy, altho I mixed them with resin and used them when I used fiber glass cloth on the leading edge of a wing.


Does anyone think that boring the first few inches of a shaft is a good way to go, and if so other than epoxy is there a lighter alternative?
Thanks,
Terry.

I coat the inside of the hole with superglue not epoxy. The reason for this is to make the inside harder to keep slivers from breaking off and rattling around.

 

[JoeyInCali]

Does anyone think that boring the first few inches of a shaft is a good way to go, and if so other than epoxy is there a lighter alternative?
Thanks,
Terry.

It reduces end mass.
It weakens the tenon.
The ferrule better be capped or has a backer .
If you thread the tenon, it becomes even thinner but will hold better imo ( how many pressfit ferrules have you seen become loose ? ).

Depending on the ferrule material, you might get away with wood or poly glue .
Now, if you can find a ferrule material that can be a thin-wall and is lightweight and very durable , boring a hole might just be a bonus as far as end-mass.