Friday, 20 February 2026

Model A - Kickstart Shaft, setting up for milling

 After a turn on the railway and with the grandchildren coming for the weekend there's not much time for workshop stuff, but I'm inching closer to finishing the setup for milling. 

Some countersunk M6 screws have arrived to clamp the right angle plate to the cross slide, underneath the rotary table:

Using the slot that we milled a few weeks ago, we can adjust the rotary table to align with the centre of the lathe spindle: 

The tap follower I'm using as a pointer here looks like it might be useful for marking out the parts of the work we are going to mill away.

A little while later, after all the preparation for the visiting little ones is done, I venture back to the workshop. I've reduced the diameter of the 2" section to the required 1.990" to match the original, and increased the length of the 1 1/8" section by about 0.040" such that it protrudes from the kickstart shaft bush by 0.020" rather than hiding inside it. I've also changed the carbide tool inserts for new ones.


I've also made a new set of clamps, but I've made them a bit big - I think we might have to do that again... That's development work for you!

In the same package as the M6 screws for the right angle plate came some button head M6. These are to replace the cap heads on the cross and compound slide handles to avoid skinning our knuckles: 


They look a lot neater as well.

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