Thursday, 30 December 2021

Finishing off the "front mounting" ballscrew bracket etc for the Bantam

Having machined out the cavity, I need to flip it over and finish off the other side. It's quite a wide bracket, so only just fits in the 6" vise jaws. 

Let's go...


Getting there...


Counterboring for the cap screws


Roughed out with 1mm stepdowns


After finishing with 3mm radius cutter:


8mm carbide drill all the way through...


Machine tapping the M6 threads


There. Fits nicely and bolts up without needing any buggerage.



Now for the drive bracket that connects the ballnut yoke to the underside of the saddle.


Sorted


Now I need to machine the matching M6 fixing holes on the underside of the saddle body. This requires the vise jaws to be fitted on the outside positions: 



This is where it should end up:


Drill 5mm


Tap M6


It even bolts up correctly:


Now let's look at the saddle gibs...

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