I've gotten a caliper to measure my IMS baskets internal diameter and decided to cut a precision flat base out of stainless steel

Joe-Frex sells pretty damn good tamper handles... and i think i might be able to attach that to my custom made base..

But i'm not sure what attachment system they're using.. maybe generic threading like M8 threads??

It is a standard M8 thread.

Oh, I used the basket itself to make a perfect fit while sizing the base. Works just as well as callipers (maybe even better)

I found centering the thread to be a bit of a challenge. Sizing & centering the base & hole is easy, but the thread ... quite easy to tap it slightly off-center (I do not do this for a living, never had any formal training on a lathe!).

Thanks tohenk2, for pointing that out i'm quite worried that it will be off-center...

I've drawn a few plans..

The base size would be:

base diameter = Internal diameter measurement of basket (IMS B70 2t H26.5m Competizione) subtracted by 0.1mm

the thickness of the base would be 1/2 of the measured basket depth..

the tapping still remains to be an issue.. i will still be thinking about that..

Once i'm confident.. i'd get some help from a friend of mine to cut it on a lathe.. and drill a M8 hole dead center on the base..

Seems like fun i think..

it is fun!