[How do I?] Oops ... Now It's Too Small

[arvidj]

Why'd you heat it in the oven. I would assume that it would shrink when cold, and that's why you're off in size.
I would have cut it while cold, then wait for it to cool, then do a final.
When it expands from heat, it would be nicely locked on.

I heated the collet chuck in the oven, not the back plate. I actually used an ice pack on the back plate

 

[BROCKWOOD]

Appears your mistake is the best answer: Wiggle Room to dial it in just right!!!!!!!!

On a side note, I have to ask Tony, Is that Richard Petty in your Avatar Pic?

 

[woodchucker]

Appears your mistake is the best answer: Wiggle Room to dial it in just right!!!!!!!!

On a side note, I have to ask Tony, Is that Richard Petty in your Avatar Pic?

You have to ask??? Yes it is. Unmistakable.

 

[Tony Wells]

Yup, last November at Texas Motor Speedway. Met him and got to talk with him at length. My daughter (in pic) won hot passes for all 3 days for that race series.

 

[BROCKWOOD]

Tony, I had to ask before blurting out my reaction. I am a fan of Petty Enterprises & a fan of the whole concept of innovation in racing (God rest it's soul). I just find it brilliant that a QC guy, such as yourself, would honor 1 of the most famous innovators in the sport. Car Craft 1968: They attributed Petty going 5mph over the rest of the field to his vinyl top - never mind the quasy baffling all under the car. Once when a privateer parked next to his race car, a big stink was raised to git that car out of here for fear that the subtle changes on Petty's car would be realized. Great times! Brilliant Tony!!!

 

[Silverbullet]

You could center it on the lathe and drip some loctite around the edge . Let it dry and it won't move. Use green or red . Mixed get purple nah