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Todays Project - What did you do today? - Printable Version

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RE: Todays Project - What did you do today? - f350ca - 12-17-2014

Had a fairly major wreck.
Was truing up these spools, wheel spacers for the mule, when it decided to come out of the chuck. Still not sure why, was taking a light cut, maybe a hard spot in the weld.

[Image: IMG_1554.jpg]

When it came out it jammed against the tool post and pushed the compound back, I always run the compound parallel to the bed for fine feed.
Result was a broken casting that holds the two brass nuts and a very bent screw.

[Image: IMG_1553.jpg]

Was quite a wallop, and theres no slowing down or stalling a 10 hp motor with the spindle at 200 rpm.

May check on the price of the parts but will probably make them, (isn't that why we have tools) Only glitch is I'll have to put the compound back together and jam it with the gib to use the lathe, the screw is 5 tpi looks like square thread of some sort and the Hardinge will only go to 11 tpi without a bunch of change gears.
One step forward two steps back.

RE: Todays Project - What did you do today? - dallen - 12-17-2014

their close now you want me to run over there and sneak in and grab a casting and screw

RE: Todays Project - What did you do today? - f350ca - 12-17-2014

(12-17-2014, 10:21 PM)dallen Wrote: their close now you want me to run over there and sneak in and grab a casting and screw

Bit of midnight shopping might be in order.

RE: Todays Project - What did you do today? - PixMan - 12-17-2014

Oh my! That's pretty bad. I can make you a new screw & nut set, though I'd recommend Acme threads.

I have the tooling for it.

RE: Todays Project - What did you do today? - f350ca - 12-18-2014

Thanks for the offer Ken. Will stick with the thread form they used, not sure what it is though, had another quick look after supper, it has a slight tapper to the thread but not acme or metric. Have the screw so can grind a cutter to match. Then the fine thread at the end to adjust the preload on the thrust bearings is metric The two nuts somehow came through undamaged. Found a chunk of cast iron to replicate the broken bracket.

RE: Todays Project - What did you do today? - EdK - 12-18-2014

That will certainly put a damper on your day. Big bummer. Bash

Ed

RE: Todays Project - What did you do today? - Mayhem - 12-18-2014

Ouch Greg - that doesn't look good at all. At least you weren't injured and, as you say, you can repair it.

RE: Todays Project - What did you do today? - PixMan - 12-18-2014

Remind me, what is the make and model of that lathe?

That could be a stub Acme or modified trapezoidal, though being an "inch" thread it should be and ANSI standard of some sort. I'd make whatever you need or want, of course.

RE: Todays Project - What did you do today? - awemawson - 12-18-2014

Greg, I feel your pain. My lathe is like a family member, hate to think of accidents like that. But as has been said, the main thing is you still have all your fingers and toes.

RE: Todays Project - What did you do today? - stevec - 12-18-2014

Bawling Greg, I'd have a go at straightening the bent screwshaft.  At the very least it would allow you to have compound service for cutting the new screw and/or give you time to check the price & availability from Summit.

Steve,
Smiley-eatdrink004