Wednesday, July 2, 2014

140701 TimC's dilemmas

140701 SBAU Telescope Workshop
Attendees: Angela, Paul, Tim, Jerry, Chris, TomT, Mike

> On Tue, Jul 1, 2014 at 10:40 PM, Tim C wrote:
>     Okay guys,   
bulge plus TDE insideR?
It happened again.  I put the mirror up on the stand tonight.  It tested out that it has a slight dome overall but it looks like I am also introducing a very small turned edge.  That's okay. 

major scratch...what caused it?
But afterward I decided to check my new flashlight on the mirror surface.  I found the mother of all scratches on the mirror.  This time I can feel it with my nail.  Wow, at first I was bummed out (for some time).  Now I'm just frustrated.  I have never had a mirror come I with so many problems.  I have gone backwards 3 times so far and I was at first thinking I would be unwilling to go back again.  If all you guys think it's okay, I'd like to continue polishing for a while.  Hey, what can it hurt.  I was trying to get this done so the donor could see the results.  Now, I'm kind of thinking I'd like to see the results.  Could be many reasons for tonight's debacle.  Without boring you all with the rundown, I'd like to see if a particle has lodged in my pitch.  That will make it easy. 
indent on pitch lap
Dump the pitch, go back to 320 and bring it on back one more time.  If this is the course I take,  I will definitely keep this sucker.  I'd deserve it.  It owes me.  (Only kidding).  It is a learning experience and as such I am delighted to take on this challenge.  I hope you all will join me to try to figure out what keeps going on.  It is a mystery right now.  Like I said earlier, this has never happened before.  Are there sub-surface bubbles that chip up onto the surface?  Am I dislodging grit from my workplace from under my fingernails?  Am I just not taking care to keep a "clean room" atmosphere around my workplace?  All good questions.  I am really sorry you guys for screwing this up over and over.  I am trying to be patient.  I hope you will be patient with me.
>     T
On 7/1/2014 10:52 PM, Dmitrii Z wrote:
> Tim, I am sorry to hear that! How frustrating! Hang in there, though. We must not let each other give up.

TT: see more photos/vids, full size, at Flickr link.
JerryW analyzing TimC iris adapter...let's see what happens if we take it apart!
peg holes for tool mirror holding on work board

Chris asking Jerry for star hopping help

Paul showing Starry Night Pro Plus

PaulW Seahorse nebula astrophotography

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