petertha's latest activity

Your video is quite revealing as its showing the initial 'mountain top' knock down of both 3DP striations & (I think) background facets...

Because your shape is spherical, I wonder if the 3DP surface could be improved using a dedicated sanding block tool of suitable size...

This may well vary by country & original rollout version, but I think is getting to be or already is outdated information. I think...

Nice work @bobden72 Is it based on the Blackmore design or something different? How long have you been working on it?

Really? The cover has a little latch & should pop right off, especially if its a real Mitutoyo. Now what you see inside might be...

Welcome from Calgary! Nice engine! I was up in your neck of the woods recently (Pioneer Museum in Stoney Plain) & there was a nice...

I was curious about this myself. For mile manufacturers that don't describe them as 'lathe' or 'large angle' is there something more...

Very unique & elegant. I like your finishing & photography too.

As Jason says, tappets/followers can have a pronounced effect on both timing duration & valve lift profile on the exact same cam. The...

I'm running these AliExpress glow drivers on my 5-cyl radial (one dedicated per plug). So far so good. Specs say 6-24V input. I'm using...