CENTERING A FOUR JAW CHUCK (HOW TO) FOR DIFFERENT SHAPES OF STOCK, QUICKLY & ACCURATELY MARC LECUYER

This video introduces the novice machinist to centering parts in a four jaw chuck. This skill will be required if you wish to produce precise and concentric part on your home shop lathe . Keeping in mind that the objective of my videos is to introduce novice machinists to accurate work techniques, this video presents a progressive approach to centering parts precisely. Thatlazymachinist Marc L'Ecuyer

[@furbarator]

An excellent explanation of how to center on a 4 jaw chuck. Thank you for taking the time to be clear and concise.

[@diamondgrove3620]

Thanks Marc. After hour of trying to get me 4 jaw centered using the DIY method and the suggestion of a couple other RUclips contributors, I followed your example and presto; took only about ten minutes. I know that's slow by comparison but it was my first time so I'm pretty proud of the accomplishment. I wanted to stop at .0005 runout but the temptation to get it zeroed was too much. That's probably why it took ten minutes.

[@Mentorcase]

Wow that guard on the lathe is the most crazy thing i have ever seen, bordering on dangerous.

[@15mitra]

simple and best explanation I have ever seen.

[@gordonagent7037]

Hi Marc, I am just starting your videos again for the second time. I watched them when I first started setting up my workshop as a newbie hobbyist machinist. Since then I have been able to familiarise myself with the Mill and lathe alot more. I have been buying these second hand and stripping them down to bare bones and rebuilding and replacing parts as needed. I have found this exceptionally satisfying as I feel more comfortable about the machines. Having said that I now understand more but going through your videos again is of great assistance and as always learn and consolidate more. Please keep them coming. Gordon, AUS

[@meduffer]

Thanks Marc. I just dialed in my first first four jaw chuck. Yay!

[@EmmaRitson]

you are a legend marc. how helpful was that! just what i have been looking for. really helpful information. i knew it was here in youtube.. just no idea where to look sometimes.

[@MrShobar]

Excellent travail, comme d'habitude. Merci beaucoup.

[@charleshendry5978]

Thanks again! Very well done Chazz

[@buntysimmons2565]

Great tutorial Sir, many thanks from Ireland

[@kkusuwan]

Thanks so much for your sharing this an excellent video training

[@justtim9767]

This is helpful to me.

[@waynegray6453]

Thank you, excellent video. 🇳🇿

[@engineerme7339]

Great tip I found, on the chuck key take out the bar and use hand grip strength to move the pair of jaws. When you have aligned all jaws, use the bar and nip up all jaws equally. Works alot easier with a range of people with different strengths, and avoids chasing zero.

[@aquilifergroup]

Thank you

[@whitewidow9046]

Thanks this helped

[@tarekessed3036]

Great thanks

[@shinli1961]

Dear Marc, thank you very much

[@midgoog2]

Hi Marc,

[@pofrani]

Do mini lathes have a neutral on the spindle as well so I can turn the chuck manually by hand?