Home brew 104bcd spider

[Dales Cannon]

I’ll come back to this little project in a coupla weeks.

Tease.

 

[hellmansam]

Mmmkaaaay, I’ve been a bit stumped by this problem. Wanting to take the height of the granny ring stubs down a few mm, I improvised this Lee case trimming tool but finger power isn’t going to get the job done. The crank axle is in the way of using a drill so I need to work out a way to extend it

 

[cokeonspecialtwodollars]

How many mm? Couldn't you just take the bulk off with a grinder flap wheel and finish with a file?

 

[beeb]

Mmmkaaaay, I’ve been a bit stumped by this problem. Wanting to take the height of the granny ring stubs down a few mm, I improvised this Lee case trimming tool but finger power isn’t going to get the job done. The crank axle is in the way of using a drill so I need to work out a way to extend itView attachment 355003View attachment 355004

Do you have a random bit of steel bar you can bore one end for an interference fit, and machine the other to drop in a drill chuck?

 

[hellmansam]

Do you have a random bit of steel bar you can bore one end for an interference fit, and machine the other to drop in a drill chuck?

I don't have the means to machine anything so I'll have to find something that will work

How many mm? Couldn't you just take the bulk off with a grinder flap wheel and finish with a file?

Too crude, need to keep them even to mount the spider on

 

[Dales Cannon]

What dia is that? Can you get away with one of those mini chucks that fit into the 1/4" hex drives and an extension?

Sydney Tools

sydneytools.com.au

Sydney Tools

sydneytools.com.au

Sydney Tools

sydneytools.com.au

Sydney Tools

sydneytools.com.au

 

[hellmansam]

its about 1/2” I reckon.

 

[latheboy]

jigsaw blades are for 30mm extruded not plate.
go slow and keep the teeth clear of buildup
I love the smell of burning trefolex in the morning!

Trefolex is a poison, please throw it away

 

[latheboy]

What dia is that? Can you get away with one of those mini chucks that fit into the 1/4" hex drives and an extension?

Sydney Tools

sydneytools.com.au

Sydney Tools

sydneytools.com.au

Sydney Tools

sydneytools.com.au

Sydney Tools

sydneytools.com.au

Without looking at the links, I like this idea.. Its rough but will get the job done. Grind a square onto the cutting tool you have and bamm, straight into the extension..
You should measure and scribe the post to the dimension you want to remove so you have a guide. That will be angry when cutting.. Also, you might destroy the thread so be prepared to put in a helicoil if you do stripe them

 

[hellmansam]

Trefolex is a poison, please throw it away

pls explain

 

[Dales Cannon]

Trefolex is meant to be used cold, when it is heated it gives off noxious fumes. Very few machine shops use it now. My former place of employ banned it. There are safer options.

 

[T-Rex]

How about a piece of straight rod, connect it to the case trimmer by slipping a short piece of plastic hose over both and secure the connection with a couple of hose clamps? Other end of the rod goes into the drill chuck, and away you go.

 

[hellmansam]

How about a piece of straight rod, connect it to the case trimmer by slipping a short piece of plastic hose over both and secure the connection with a couple of hose clamps? Other end of the rod goes into the drill chuck, and away you go.

Yep something like this is going to get it done I think, the little stub on the bottom of the cutter is for depth control and won't damage the threads, the cast Al cuts very easily.