I look at things retrospectively hoping I did the best I could with what I had at the time.
Retrospectively, I certainly wouldn't do Chieftain again.
(It's defiantly one step forward, two steps back, trip up, loose your footing and fall off a cliff).
No worries, it'll be classic.
On rare occasions I get miller and lathe time at work, In the current climate you'd think there'd be more time, but work is manic.
I satisfy myself and superiors that during the odd lull periods I'm sharpening up my skills on these alien machines in an alien workshop.
Usually around 3 o'clock in the morning, "using my break"
not really the best time for concentration.
Shift workers would know this as the "Wall"
So don't be put off by first time failures, I've had so many. With such wondrous machines you have, your sure to have gob smacking parts.
The young un's think 3d printers are a new thing. Captain Kirk Star Trek replicators were around back in the 1960's
Ping!
.
. You’ll see. 
