Author Topic: Why do secondary cup holders exist (instead of stocks)?  (Read 294 times)

Jacob Cota

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Re: Why do secondary cup holders exist (instead of stocks)?
« Reply #15 on: January 26, 2018, 04:40:34 AM »
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Does silicone melt in the heat?

The secondary in my 8" was attached with foam tape, though it was oriented wrong. Would tape be too risky?

A problem with silicone is I need to get it flat. Tape is already flat.

No.
Yes.
Use toothpicks to space the secondary until the silicone is completely dry (48 hours), then pull the toothpicks out.

housletica

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Re: Why do secondary cup holders exist (instead of stocks)?
« Reply #16 on: January 31, 2018, 04:59:32 AM »
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Quote

Does silicone melt in the heat?

The secondary in my 8" was attached with foam tape, though it was oriented wrong. Would tape be too risky?

A problem with silicone is I need to get it flat. Tape is already flat.

No.
Yes.
Use toothpicks to space the secondary until the silicone is completely dry (48 hours), then pull the toothpicks out.
Don:

How wide is the lip on an Astrosystems style secondary holder?

I know that some bond a safety line to the back of a mirror that bonded to holder. I did that with my 16 inch before I switched over to an Astro-Systems secondary holder. It was never needed..

Jon

Jovan Corcoran

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Re: Why do secondary cup holders exist (instead of stocks)?
« Reply #17 on: February 03, 2018, 01:15:37 PM »
How did you attach the safety line to the mirror and holder?

Did you use the same silicone that you glued the mirror with to bond the safety line to the back of the mirror and holder?

It would seem that if the silicone that held the mirror failed then it would also fail with the safety line.

ifaclidis

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Re: Why do secondary cup holders exist (instead of stocks)?
« Reply #18 on: February 09, 2018, 11:21:36 AM »
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How did you attach the safety line to the mirror and holder?

Did you use the same silicone that you glued the mirror with to bond the safety line to the back of the mirror and holder?

It would seem that if the silicone that held the mirror failed then it would also fail with the safety line.


I did not use the same adhesive, I either used epoxy or cyanoacrylate.

Jon