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Delta 46-715 Lathe Hack

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Blog entry by denverdan posted 09-08-2017 07:26 PM 377 reads 0 times favorited 1 comment Add to Favorites Watch

My lathe has been working great since I rebuilt the pulley system with one exception.

Sometimes it’s really hard to take the chuck off of the spindle.

On the original pulley there were indexing holes and a indexing plunger lock that would lock the spindle allowing the chuck to come off after use. Since my pulleys didn’t have the holes there wasn’t a way to lock the spindle.

Not a huge issue, but kind of a PIA. Normally I would use a couple wrenches and eventually it would un-tighten. While I did have the original pulley half with the indexing holes there wasn’t any room left to put it on the spindle.

Anyhow, I was looking thru some old table saw blades and got an idea. Make my own! I would just need one indexing hole and the thickness of a saw blade would be fine on the spindle. I could even drill holes for my handwheel.

It took a couple days to make. It was actually pretty easy. I also learned about annealing saw blades which make drilling holes in them a lot easier to do.

Briefly here’s the process:
1) Took a table saw blade and used an angle grinder and bench grinder to get it down to size.
2) Lots of measuring to carefully drill holes the exact size I needed.
3) Holes were taking forever to drill out.
4) Heated up the saw blade in the fire pit till it changed colors past blue to red.
5) Drilling commenced.
6) Used jigsaw to cut the key
7) Tapped screw threads for the handwheel.
8) Cut a slightly longer key
9) Painted an indicator on the spindle so that I would know where the hole was to lock.



1 comment so far

View sras's profile (online now)

sras

4574 posts in 2886 days


#1 posted 09-09-2017 12:22 AM

Nice write up.

-- Steve - Impatience is Expensive

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