Founder

Paul McNabb founded the mirror lab in 1997 in order to create the best amateur telecopes possible. Inch for inch our mirrors surpass store bought or commercial grade scopes.


Part of the Saint Petersburg Astronomy Club Home of the 2014 OBS Star Party

Lab Members

Ralph Craig is a lab instructor and has made mirrors from 6 inches to his recently completed 16 inch f5 mirror.


Allen Maroney
has completed three mirrors in the lab between 8 and 18 inches. Allen is also buiding a second robo foucault tester based on James design.


Mike Davis
casts his own mirror blanks.


Irv Nadelhaft


Charlie Mullen ground the mirrors for two years worth of rafflescopes but now has moved on the clear skys of New Mexico.


Lab T-Shirts Available

Lab Alumni

Lenny Remetta


Keevy McAlavy


Bruce Kazcmarik


James Lerch built our robo foucault tester and in house aluminizing chamber as well as a laser interferometry testing setup.


Ron Jones AKA the figurer is about the best mirror maker this side of the mississippi. You can see things in his 8 inch mirror that would impress a takahashi devotee.

Links

Russell W. Porter father of amateur astronomy and founder of Stellafane

Mel Bartels Website
Amateur Astronomer and innovator.

Stardate Website
Good overall observation site.


NGC Astronomers
Former member Matt Terry has his own astronomy club north of Tampa.

Southwest Florida
Astronomical Society

A nearby Astronomy club.

Telescope Software
Newt
Ray tracing program for determining all required dimensions for a newtonian reflector. (New Website)

Plop
Program for designing mirror cells.

Observing Software
Celestia
3-D interactive simulation of the solar system and beyond.

JupSat95
Plots the jovian satellites.

Lunar Phase
Shows all the phases of the move and more.

Mirror Lab Home Mirror Making Supplies Robo Foucault Tester Telescope Gallery SPAC Library
 
Where the 19th Century Art of Mirror Making Meets the 21st Century
 
The Saint Petersburg Mirror Lab is a small band of dedicated mirror grinders and telescope makers living in the Tampa Bay area of Florida. We offer a mirror making class for interested persons. We strive to create the best mirrors our home brew technology can muster. This includes robotic foucault testing and laser interferometry.  
 

  Joey and Brent Hilker join the ATM community
2014-08-27
Joey and Brent are a few hours into grinding a 10 inch mirror here. They have perfected the
teamwork to keep the grit crunching sound at the optimal levels.

  Paul tuning up the Meade 16 inch focuser
2014-08-27
Paul really got into this project. He stopped the trunnions from slipping on the tube and fixed the
focuser. Clearwater Fundamental Middle School has a monster telescope ready for the sky now.

  George Fatolitis cleaning 16 inch Meade mirror
2014-08-27
George brought in a Meade 16inch Dobsonian telescope from Clearwater Fundamental Middle School. The
mirror was coated with dust and the mechanics of the telescope need a bit of work. After a couple
hours of work it all came together and George left with a beautiful telescope for sharing he night
sky with the kids.

  Ralph, Tom and Mike polishing mirrors
2014-08-27
We had three polishers (two figuring), two grinders and repaired a 16inch Meade Dob for a local
Middle School this week. It was busy at the Mirror lab!

  Brad finishes his 8 inch mirror!
2014-07-06
Brad finished his 8 inch mirror Saturday. It is extremely well polished and has a one seventh wave
figure with beautiful edge. Congratulations Brad!

  Eighty-five pound pitch lap press
2014-07-06
Sometimes the pitch lap needs a little help getting back into a shape that matches the mirror. The
mesh makes nice micro channels. After removing the weights and mesh we usually press again for a
few minutes flatten out any pitch lifting caused by removing the mesh. We also like to keep the
polishing room between 80 and 82 degrees F.

  Tom nears final figuring
2014-07-05
Tom is in the final stages of polishing. His 8 inch mirror has a slight (~200nm) turned down edge
and mirror on top with a short center over center stroke will correct that quickly.

  Mike with his 12.5 inch light weight mirror
2014-07-05
This shows the light weight 12.5 inch mirror batter. Mike cast the mirror and has been perfecting
the honey comb pattern.

  Mike polishing a 12.5 inch wih a light weight sub-diameter tool
2014-07-05
The light weight tool is needed to prevent uneven polishing where the glass is hollowed out on the
back and the surface is thinner.

  Zerodur mirror finished for a lab scope
2014-04-28
Ralph (left) and Allen finished a 12 inch Zerodur mirror. This f4.4 mirror will stay with us at the
lab as a demo scope and for public viewing nights. It came in at 1/7th wave and is very smooth and
well polished.

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