Lets complicate the simple: Making a tap follower

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Been wanting a tap follower for a while, and will need it for some up coming projects.
‪@InheritanceMachining‬ for the inspo. Always seriously amazing workmanship.
Specs on my Southbend lathe: its a 9C from (going on serial number) mid 1932 so will be 92 years old this year.

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30 сен 2024

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Комментарии : 17

@johnspathonis1078 8 месяцев назад

Hi Have you considered just using spiral flute machine taps? Just grip the tap tightly in the tailstock chuck, select low speed (40rpm) and use the jog button to start. Don't lock the tailstock down. Just slide it into the job and push it until the tap starts. It will automatically pull itself into the work. When the desired depth is reached, just reverse out.

@docsofftopic8130 8 месяцев назад

Would mean duplicating existing tooling some of which very old imperial sizing (pre ww2) so if I don’t have it’s a win. This also works in the mill and drill press.

@johnspathonis1078 8 месяцев назад

I have made the decision not to machine anthing that is not metric unless it absolutely has to. You can use the same technique on a mill or drill press as long as RPM is dialed down. Once you have used spiral flute machine taps you will not use anything else. A good brand is YG1 from South Korea. Cheers @@docsofftopic8130

@docsofftopic8130 8 месяцев назад

I restore/rebuild vintage machines so much as I hate imperial units they are a fact of life lol. Thank you for the recommendation will be looking into it

@jackdawg4579 8 месяцев назад

Nice job, I assume you needed the adaptor because the southbend tail stock is MT2 ?

@docsofftopic8130 8 месяцев назад

Yep

@bostedtap8399 2 месяца назад

Nice addition to the shop, well made.

@docsofftopic8130 2 месяца назад

And very useful, gets quite a lot of use especially in the mill when reaming or doing one off tapping ops

@paulmorrow5905 8 месяцев назад

if you do blacksmithing can you tell us your channel

@bobvines00 8 месяцев назад

Search for "Doc's Hotshop and forge" for his blacksmithing.

@docsofftopic8130 8 месяцев назад

What he said 😉

@01thomasss 7 месяцев назад

Hi I have the same lathe as you, also with the main bearing oilers on top of the bearings and not on the sides as with the later South Bend 9-inchers. My question is: how do you achieve such accurate metric dimensions with a lathe calibrated imperially? With me it's mostly 'hit-&-miss'. Cheers, Thomas

@docsofftopic8130 7 месяцев назад

Three main things to keep in mind; the first is that 1/1000” is 25.4microns, the second is you need to know the backlash in your machine, on mine the cross slide screw is visibly worn and has a hair over 20/1000” backlash, the third is practice. I build my first lathe from scratch and it has no feed dials, so I learnt to go slow and to know how much to expect from a given amount of feed. And as I neared final dimension measured lots.

@01thomasss 7 месяцев назад

@@docsofftopic8130 - Thanks! It seems one just has to keep one"s wits about.

@docsofftopic8130 7 месяцев назад

Yep, really light cuts at the end with sharp tooling…