SNNC 231 P1 10 TPI Left Hand Acme Nut

[@jimburnsjr.]

John, I sure do admire you, your beautiful home shop, and your beautiful fam... thanks for another great video.

[@brandoc1950]

I've got an 1/2" LH acme thread with nut in the garage that might have done for you, and I'm off to Beamish tomorrow. I could have chucked it under a bush in the car park for you. ;)

[@stevephillips174]

I love your videos john, my whole family watches with me. I wish you could have gone to bar-z this year. please post a link , we are ready to buy more shirts or help in any way we can for you to make a trip to bar-z next year. have been watching and learning fron you since you started posting videos. keep making them please learn so much from you steve

[@cmonster6]

John,I was more excited about you going to California last year than if it was me going

[@MrLukealbanese]

I've got to do exactly this John, so very handy video mate!!!

[@billhanson4921]

just got the kit to do a LH acme nut myself 10 tpi from RDG tools was cheap enough.... did the job well too.

[@MaturePatriot]

Those threads look GREAT! See you in part 2.

Looking forward to the next part.

[@tonybell4447]

Surely John you should make up the new nut assembly before drilling and tapping it else how are you going to braze it exactly in the right place?

[@MrLukealbanese]

I was wondering about that. You could however machine the two bits to have flats on, clamp them together drill and drive in some short locating pins perhaps, take them out of the vice, pin together and solder up. Perhaps?

[@tonybell4447]

What if the nut distorts with the heat?

[@MrLukealbanese]

Just got to try I guess. He'll find out soon enough!!

[@roeng1368]

Just run the tap through it again, clean out the threads.

[@jimburnsjr.]

the original nut had been squished in a vice to tighten it up.... had been apparently totally destroyed, or nearly so, several times and still served it's purpose... there is likely both enough play in the table and the ability to adjust the alignment of the nut, particularly as it appears to have only a single boss in the connection... so long as he gets close it will probably be fine... I would have measured, drilled/reamed out the original nut.. bushed it with the replacement material .0015 oversized and fit with heat, secured with two pins/rivits in addition to hard soldering/brazing... drilled/reamed that out as a bushing and tapped in place... but I'm guessing John's experience will prove to be sufficient and maybe handier.. maybe better all around.. .gotta look at the next video :D .... . if you do what i said, make the filler piece about .040" shorter than the oal of the hole to be bushed, and when fitting with heat center it so you have about a .020" step/counterbore effect that can be filled while brazing to give a stronger product.. but prior to brazing... drill two holes slightly smaller I.D. than your brazing rod O.D. .. about .250" deep perpendicular to the long axis of the bore and into the filler material, lightly countersink.. and cut two pieces of brazing rod about .270" long.. .heat.. and drop into holes, rivet the heads of the rod protruding, file off, braze the riveted head in place... then.. braze the core permenantly in place... drill... ream... tap... a heck of a lot more work than John is doing... not enough of a gain, to warrant it, unless it is a part for a service that requires a million dollar insurance policy; and somehow that is the only way to get the job done, ie. the part cannot be simply replaced or readily made from scratch.

[@hiquality_distraction4084]

This man works harder than i do!

[@paulmorrey733]

Thanks very much John

[@locustbay7594]

Hi John, do you have a link to the ACME taps? Looking everywhere but the ones i see are expensive. Thanks

[@doubleboost]

Hi Gary can you email me

[@mealex303]

A ratcheting spanner would have been nice for that tapping job. You don't use ratchets much john why?

[@mealex303]

Alucard Pawpad there is a forward and reverse button it would not need to come off? Tail stock can be backed out to remove thats how I would do it anyway? Just me

[@noelhenderson700]

Harder and tougher than brass indeed. There is a good reason why there was never a brass age.

[@MegaRiffraff]

👍🏻

[@JCSalomon]

Has anyone compiled a list of drawing winners (in case I win one week when i'm too busy to watch)?

[@andymandyandsheba4571]

canny job on them threads john

[@goldeee666]

beautiful acme thread man. carefull dont get those chips on debs carpet or you might have to brexit. just sayin. massive thanks

[@mrayco]

Objects in mirror and camera looks bigger than they appear half inch looks like an inch to me.

[@ياربيارب-ص1ظ]

Very cool

[@ilmondodimassi]

Is bronze?