Making a New Half Nut for the Atlas 618 Lathe Part 2 of 2

Making the parts for the Half Nut (AKA Split Nut) assembly for the Atlas 618 6 inch lathe. The same part works on later Atlas Mark II lathes, as well as the Craftsman-branded 6 inch lathes, which were made by Atlas.
Includes a section on making a homemade acme tap
Part 2 of 2

[@ronaldcrowder404]

Amazing job . I have an atlas 618 with no half nut or Carriage advance and rack and have a broken 16/32 gear combo so now I now I have a big challenge ahead of me . I will be modifying the apron and making gears and half nuts and hope I can come close to the job you have done !!

[@peterjames4435]

I have a feeling you are cleverer than you let on !!!

[@robertoswalt319]

Nicely done. I look forward to watching you remove the change gears from that plate stock.

[@davidhofman4341]

I printed change gears for my 109 witch will also fit my 618.

[@geraldedwards1577]

Hoping do that to my Boxford model A which has worn out half nuts and cannot buy knew ones

[@YOURFISHINGCHANNEL]

i watched the 2 films , looks very time consuming but very fulfilling

[@Just1GuyMetalworks]

Nice Job! Better than he original for sure 👍😁👍.

[@dannywilsher4165]

Nice job sir!!!

[@clutch5sp989]

Great shtuff...right now, these parts are $85 on Eqay. Eliminate snakes & crooks who will price gouge the ones who are ripe for the taking.

[@johnstrange6799]

Thanks.

[@kikogarza6310]

Good video gracias

[@KentRigby]

Could you make me a half nut and bracket for the 618? I have two sets of half nuts and both are worn out. The half nuts are unobtainium and I have zero skills millimg and machining. I would, of course, pay you for the parts.

[@johngturner]

@TheBuildist UnObtainium is found in pandora I believe. Lol good luck getting some of that!

[@mikelopez6269]

Bravisimo

[@steelcappedstrength]

How were you able to gauge your 16 tpi acme cutting tool? My little acme "fishtail" gauge ends with 10 tpi. Thanks!

[@TheBuildist]

I don't remember for certain. I think that I probably set my grinding guide to grind the hss blank at a 29 degree angle, and then ground it close to a point. Then ground it back square until it fit snugly in between the threads on my 16tpi lead screw.