Need help with my metal lathe

cueman said:
With big heavy tailstocks the drill bit works like a boring bit if the tailstock or drill chuck either one is off center thus creating a larger hole.
For exact holes drill undersized and then use a reamer. Or just bore everything with a boring bar.
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I had been boring all my holes since this started but now it's back to my normal. I can drill a hole with 3 point carbide bit and take it out of the chuck and almost can't push the bit backwards into the hole in the wood. You actually have to drill it in and out a couple of times or it's too tight.

I have a bit the exact size of my pin barrels that I've always used with very precise results. Also the minor diameter of the shaft threads and some other specific things I do that saves time if you can trust your drill.
 
JC said:
Thanks for all the help guys. I found the problem with with the inside bore of my tailstock. I reamed it with the mt2 reamer I almost forgot I had and used another chuck with a pristine taper on it and my lathe is back to cutting straight again.

I knew the instant I tried my first test hole and heard the familiar squealing of the bit it was going to be a tight hole.

Not sure what happened in the hole but the reamer brought out some metal when I reamed it. Must have been a burr in there.
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Since you messed with the tailstock alignment while trying to figure out the problem, might be worth while to recheck your alignment.
 
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If you need to borrow a coaxial, I got one .
Frankly, I don't drill to size much these days . I just drill a small hole and mill with a 1/4 end mill.
The only major drilling I do is in coring .
 
This is the chuck I got for the dayjob in 2008. I checked the PN at MSC, and its about $140 today, without the arbor. You want to get one that says made in Taiwan for the best quality, unless you want the $400 German chuck from Albrecht which is the best.
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Interestingly, when worked in the toolroom in 2000/2001, they also had the Jacobs brand chucks that looked similar to the Albreight. They had all broken or didn't hold the drills true. No one ever used them. I believe these Jacobs were USA made, but its been 20 years. I think maybe they tried to come out with a similar style chuck, but for whatever reason they weren't as good.

Fast forward another 10 years to about 2010 and I had tried the Taiwan knockoffs. They were excellent. I think they might have just copied the Albreight exactly, whereas Jacobs probably tried to re-engineer it. That is just my guess.

I also just checked on Amazon, and they have Taiwan made chucks for $100 with 4.8 star average reviews, and videos in the review section showing runout less than .001". Here: https://www.amazon.com/Power-Specia...yless+chuck+taiwan&qid=1616541462&sr=8-3&th=1

And, Amazon also has knockoffs that cost $30. These must be China, not Taiwan. But, they may be worth a shot. Especially from Amazon if they are crap you can return it easily. Here: https://www.amazon.com/SHARS-Heavy-...s=keyless+chuck+taiwan&qid=1616541462&sr=8-11
 
iusedtoberich said:
This is the chuck I got for the dayjob in 2008. I checked the PN at MSC, and its about $140 today, without the arbor. You want to get one that says made in Taiwan for the best quality, unless you want the $400 German chuck from Albrecht which is the best.
View attachment 589752

View attachment 589753

Interestingly, when worked in the toolroom in 2000/2001, they also had the Jacobs brand chucks that looked similar to the Albreight. They had all broken or didn't hold the drills true. No one ever used them. I believe these Jacobs were USA made, but its been 20 years. I think maybe they tried to come out with a similar style chuck, but for whatever reason they weren't as good.

Fast forward another 10 years to about 2010 and I had tried the Taiwan knockoffs. They were excellent. I think they might have just copied the Albreight exactly, whereas Jacobs probably tried to re-engineer it. That is just my guess.

I also just checked on Amazon, and they have Taiwan made chucks for $100 with 4.8 star average reviews, and videos in the review section showing runout less than .001". Here: https://www.amazon.com/Power-Special-Keyless-Integrated-Titanium/dp/B08817XXDJ/ref=sr_1_3?dchild=1&keywords=keyless+chuck+taiwan&qid=1616541462&sr=8-3&th=1

And, Amazon also has knockoffs that cost $30. These must be China, not Taiwan. But, they may be worth a shot. Especially from Amazon if they are crap you can return it easily. Here: https://www.amazon.com/SHARS-Heavy-...s=keyless+chuck+taiwan&qid=1616541462&sr=8-11
Click to expand...
R8 shank won't be too hot on the lathe
 
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