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Home Built Optical Planetariums
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Pinned: Topic has attachmentsBulb Table
Lamp Data
Ken Miller
6,264
5th March 2015 - 10:56 AM
Last post by: Ron Walker
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Pinned: Drill Bit Table for Star Holes
How Low Can You Go!
mrgare5050
4,975
26th August 2008 - 07:33 PM
Last post by: ltkhoover
Forum Topics
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jmarmor
2,658
3rd October 2018 - 01:01 PM
Last post by: Ron Walker
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Topic has attachmentsJamie's Planetarium MKII
A fully optical projector
Philostopher1
73
13th September 2018 - 05:51 PM
Last post by: moonmagic
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Topic has attachmentsFrom: Jamie's Planetarium  * 123» 11
From Topic ID: 25344
Philostopher1
7,289
13th September 2018 - 04:48 PM
Last post by: Ron Walker
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Topic has attachmentsWho built this?
Home made Star projector UK
Philostopher1
429
29th July 2018 - 09:44 PM
Last post by: Philostopher1
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Topic has attachmentsPlanetarium Orrery Automata
Van Cleef and Arpels Planetarium \ Orrery Watch
Philostopher1
701
3rd July 2018 - 11:43 PM
Last post by: Philostopher1
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Topic has attachmentsStar Plates
Making star plates and Plotting to Truncated Icosahedron
Philostopher1
335
15th June 2018 - 05:57 PM
Last post by: Strgzr
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Barnetarium
5,853
7th June 2018 - 01:29 PM
Last post by: mrgare5050
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Scott T
1,152
23rd May 2018 - 04:28 PM
Last post by: Ron Walker
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Tim Mitchell
26,067
24th April 2018 - 11:03 AM
Last post by: Ken Miller
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Topic has attachmentsDIY simple Lenses
Making lenses for better stars
Philostopher1
569
3rd April 2018 - 06:37 PM
Last post by: Philostopher1
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Topic has attachmentsPin Hole Light source via LED  * 12
Cree LEDs, Smartphone lenses and light pipe homogenizers.
Philostopher1
1,885
19th February 2018 - 10:02 AM
Last post by: Ron Walker
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Who built this?
Home made Star projector UK
Philostopher1
281
3rd January 2018 - 03:55 PM
Last post by: Philostopher1
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Light Emitting Plasma Sources
Plasma emitters as potential point sources
Philostopher1
424
17th August 2017 - 10:42 AM
Last post by: Ron Walker
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Topic has attachmentsLEDs with hexagonal emitters
no square stars!
Philostopher1
550
10th August 2017 - 12:28 PM
Last post by: Ron Walker
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Ron Walker
54,365
6th July 2017 - 10:57 AM
Last post by: Ron Walker
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heptacloro
683
16th December 2016 - 11:20 AM
Last post by: Ron Walker
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Topic has attachmentswhat is it all about...?
strange fascination about the stars inside a room
Bossard
3,814
2nd December 2016 - 04:04 AM
Last post by: mrgare5050
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Topic has attachmentsNew Planetarium
From starball to operational planetarium
tomoarnold
3,122
29th April 2014 - 03:32 PM
Last post by: moonmagic
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Topic has attachmentsBulb question
what bulb is best for a small projector?
Ron Walker
3,453
21st April 2014 - 11:03 AM
Last post by: Ron Walker
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Charlie Miller
4,561
4th November 2013 - 04:03 PM
Last post by: tomoarnold
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Topic has attachmentsBuilding a home planetarium from scratch  * 123» 6
or, what possessed me to start this
Ron Walker
54,499
9th January 2013 - 10:44 AM
Last post by: Ron Walker
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Ken Miller
24,140
27th December 2012 - 11:13 AM
Last post by: mrgare5050
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Charlie Miller
1,858
24th December 2012 - 10:46 AM
Last post by: Ron Walker
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mrgare5050
241,469
19th October 2012 - 10:06 AM
Last post by: Ron Walker
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Topic has attachmentsGerman youngsters win science fair with planetarium  * 12
homemade optical starball system
albert
15,512
18th August 2012 - 02:45 PM
Last post by: Ron Walker
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Topic has attachmentsModifying a Spitz Jr.  * 12
I am still not finding some basic information
flyboybc
15,306
7th August 2012 - 04:21 PM
Last post by: Ron Walker
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Thoughts on building a star-cylinder projector
manuscript under development
Charlie Miller
6,846
20th September 2011 - 12:35 PM
Last post by: Ron Walker
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Martin Lewicki
3,097
19th August 2011 - 02:00 AM
Last post by: Martin Lewicki
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