Question about a SGX Plus Generator

[HarryChiling]

I am trying to surface the front of a lens to make it atoric and the generator does not seem to want to cut convex curves? Does anyone have any tricks for this machine or have I reached it's limitations I want the front surface to be:

+6.50/+4.50

The error I keep getting is

invalid cross curve press any button

Any help would be appreciated

[shanbaum]

I am trying to surface the front of a lens to make it atoric and the generator does not seem to want to cut convex curves? Does anyone have any tricks for this machine or have I reached it's limitations I want the front surface to be:

+6.50/+4.50

The error I keep getting is

invalid cross curve press any button

Any help would be appreciated

Try +4.50/+6.50.

Atoric?

[HarryChiling]

Try +4.50/+6.50.

Atoric?

Tryed that same error? I actually had that first then tried +6.50/+4.50 to see if it would work that way.

[shanbaum]

Are you sure that you're entering plus signs on both curves? The difference between base & cross is limited to 10 diopters.

[Rich R]

It could be done under the PLAP setting, would be a bit tricky getting the thickness correct, nothing I've needed to do, I do make many plastic laps that way.
Good luck,
Rich R

[shanbaum]

The SGX's limit on convex curves for lenses is 8.00 diopters.

I'm not sure what's up with Harry's machine, but my simulator has no problem with +4.50/+6.50.

In any case, I'm sure the friendly and helpful folks at GC field service would be able to figure this out for you, Harry, were you to call them at 800-843-1479.

[HarryChiling]

Thanks shanbaum,

I think I am going to calle them on monday and see what the issue is. I am sure it can be done, because it cuts laps with the same type curves I am trying to get. Just thought someone might have a quick fix for me.

[RT]

It may depend upon the age of your SGX. I think it wasn't until the "SGX Plus" that lens curves could go above +6.00 diopters.

[HarryChiling]

It's an SGX Plus and 1 year 2 months old. I tried lowering the cross curve and it gave me errors until I reached "0.00". Thanks for the tip though.

[shanbaum]

it gave me errors until I reached "0.00".

Be sure to tell field service about that. Sounds like a good clue.

[HarryChiling]

Be sure to tell field service about that. Sounds like a good clue.

I will, it looks like maybe it's a glitch or something because it will generate convex base curves just not cross curves. I miss my optronics 2g.

[shanbaum]

I will, it looks like maybe it's a glitch or something because it will generate convex base curves just not cross curves. I miss my optronics 2g.

OK, well, I probably wouldn't mention that last bit.

[HarryChiling]

OK, well, I probably wouldn't mention that last bit.

I agree, due to the whole catching flys with honey thing and all. :D