Re: ATM 6" Mirror

[Viper71049@aol.com]

To All who replied.

Tried adjusting EVERYTHING last night.  rotated, adjusted, collimated, It has 
to be in my mirror. I did rotate the mirror a quarter turn in one direction 
and did rotatet the pitch a quarter in another. How do you (  rotate the 
tilting lens with the eyepiece )? I used a ronchi for my testing and all I 
saw was straight lines.  The support system uses a three point cell and is 
held on with wooden supporters. I remounted the mirror last night and nothing 
seemed to work!  It might be the cool effect like Bill said because I leave 
it in my HOT garage all day! So tonight I will leave it out all night and see 
what happens. I will also try to adjust the secondary.  Amazingly I think my 
system has no coma because I see a bunch of stars Its just the brighter ones 
are just stretched.  My 6" is better than full thickness it is 1.25" thick!  
I got my 1.3" secondary at Orion and it said 1/10th wave so I think it is 
optically flat.  Also I did test for parabola and I have a good parabolic 
mirror.  But I guess more accurate results would be on a Focault tester.  I 
have a Slitless type but dont know how to use it.

Thanks to all,
Tony