Making Flat lapping plates 3

In this video we take a good look at the flatness of the lapping plates so far. Using the classic three plate method and no measuring tools we are able to create a flat plane of high quality with nothing more than some elbow grease. We use a Monochromatic light source and and optical flat to check the surface flatness of the laps. We also take a much closer look at the shop made spherometer and LVDT.

[@GtsAntoni1]

“About a quarter of fifty millionths right there” is the most American measurement I’ve ever heard in my life 😂

[@kainenmattison3665]

Cringed watching him throw that wrench down on the flat plate

[@Bespoke-metal-fabrications]

Off topic but I dare say adding 'an hour rubbing beyonce' to your tags would considerably increase views lol.

[@shanek6582]

The amount of toys you have seems unlimited. The fact that you know how to use them all is also impressive

[@osloweknownas]

Watched a Foyle's War tonight. Foyle runs thru a long tortured explanation of something and says "... and boom, Bob's your Dad's brother!" Strikes me funny for some reason.

[@symplesy2056]

Theres nothing like admiring the mirror surface of something you just lapped

[@JohnBare747]

Great series Tom. Now you have a set of plates flatter than last weeks diet Coke.

[@Titus-as-the-Roman]

I find these videos relaxing. Not only do I like your oration (a five dollar word for story telling), but that you show the things that doesn't always finish the way expected. I enjoy watching various car and truck repair/ rebuild shows but am always amazed how easy parts seem to come off and on for them, how clean the broken parts are and the fact they also never seem to get dirty.

[@WJS774]

So what's the story with 'A on B' and then 'B on A'? I'd have thought that those two would have the same effect. Why does it make a difference which one is on top?

[@jacknissen6040]

what to do with these lapping plates?

[@jimcomer8780]

Fascinating. Its amazing what can be done with patience and elbow grease.

[@ROBRENZ]

Looking real good Tom! Cant wait for part lapping using the plates.

[@Pillowcase]

I was just thinking through "what if a pair had mutually dished/domed surfaces - so they seemed flat but just mated"

[@Abom79]

Enjoyed Tom! I like that cool little tool for checking flatness. The bushing trick is one to remember!

[@RaysGarage]

This has been a very good learning experience for me, thanks Tom!

[@hebrewhammer1000]

Great video series! The best videos I have seen on lapping plates. Thank you for sharing your knowledge.

[@AmateurRedneckWorkshop]

That was just flat out a good video, thanks.

[@yosmith1]

Thank you for sharing, please never stop!

[@ScottGMerritt]

I love your videos, Tom. Thanks ever so much!!!

[@scottlange3548]

Great video Tom, intriguing and interesting!