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What resin is used when making slab off lenses and any suggestions on where to get it?

PGX is recommended 743 to 761F. Crown is 833 to 851F (ref. Xcel). We have separate machines for crown and pgx too, appreciate it.

We're using an external thermometer and already have the Xcel guide you mention. Thanks

We have a Kirk chem. hardener and our glass lenses keep failing the drop ball test (recent problem). The lenses come out looking hazy and pitted. Temperature looks ok (about 840F) and just replaced...

I forget how many shapes the blocker holds (we use Innovations as our LMS so it's pretty much unlimited). Average cycle time is about 2 minutes, and incredibly accurate!...

Look into the Essilor Pro B 700. We have it and are very happy with it.

Anyone familiar with miopia control; specifically, adding base in prism to the near portion only in executive bifocals? How does that work (are the adjustments made during surfacing, finishing, both,...

I’m the same way, I’ve always sorted them by cylinder power too, but recently noticed someone else had them sorted by sphere power and it just made me wonder the pros/cons of sorting by sphere or...

What's the advantage/disadvantage of sorting stock lenses by cylinder power vs. sphere power? :nerd:

Hey Robert, cool to see you post here! How much do you think this is still true today, lol!?

Is this still true? I've never heard of it and I attend all your conferences! :)