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Rick Woods
Post Laureate
Reged: 01/27/05
Posts: 4250
Loc: Inner Solar System
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Quote:
How's the paper work for blocking out extraneous light? 
Pretty good. That's pretty much what I use it for, observing when the moon is bright or the sun is rising. It's not as long as a regular dew shield, only maybe half the length. It's not ideal, but it is light.
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- Rick
14" LX200GPS
8" Meade 826C
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JanS
professor emeritus
Reged: 12/24/05
Posts: 566
Loc: K/W
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Quote:
I made my own dew shield form a sleeping bag pad; use on a 10" SCT. I bought the pad, the velcro, and the glue for less that $20.00. It's over 12 years old and still does its job.
Did you line it with black felt? Or was the grey fine? I wonder if home depot sells black pipe insulation for a 10in pipe....?
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GOTO #106 75mm f17
Meade 10" LX200GPS EMC w/UHTC
TeleVue BinoVue
(2) 24mm Panoptics
A whack of Meade Super Plossls
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Robo-bob
member
Reged: 05/02/05
Posts: 48
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Here is another very simple idea that also makes sure the inside of your homemade dewshield is very black. After checking on sleeping mats, I decided they were too thick and bulky so I found a shop that sells rubber (in the yellow pages) to industrial firms. Took a short trip down to the plant and had words with one of the employees. I told him what the material was to be used for and he suggested a neoprene sheet instead of foam. The neoprene he showed me was mat black, about 3/16th inch thick, and more rigid than foam rubber.
Long story short, I took it home and cut it to circumference with an inch added. I then attached velcro to the short sides (in the appropriate places)using a sewing machine. Foam will not tolerate sewing velcro to it and I don't like using glues (as some commercial shields do) that may be in close proximity to optical coatings so it seemed a better option. The velcro holds the neoprene in a round shape.
I am very pleased with the outcome, and when the scope is being stored, I just increase the diameter using the velcro and the shield slips snugly over the OTA so I don't lose it or damage it.
My solution is bit of work but I liked it so much, I made 4 more for subsequent SCT's I have purchased.
Rob
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JanS
professor emeritus
Reged: 12/24/05
Posts: 566
Loc: K/W
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I'd like to thank everybody, you guys are a fountain of information & ideas!  All this assistance and feedback is why I love this forum, & why its the only one I belong to.
Store-bought units range here from about $60 for a flexible astrozap to $160 for a matching meade metal. Seems many members here lean towards saving money (& weight) on a homemade shield. I'm inclined away from a blue metal shield, if for no other reason than having would-be theives thinking I have a bigger scope than I do. I have a preference for the practical & subtle (well, as subtle as a 10"lx200 can get  ). I'll check out everybody's ideas & will let you know! Thanks 
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GOTO #106 75mm f17
Meade 10" LX200GPS EMC w/UHTC
TeleVue BinoVue
(2) 24mm Panoptics
A whack of Meade Super Plossls
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scopethis
sage
Reged: 05/30/08
Posts: 239
Loc: Kingman, Ks
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Quote:
Quote:
I made my own dew shield form a sleeping bag pad; use on a 10" SCT. I bought the pad, the velcro, and the glue for less that $20.00. It's over 12 years old and still does its job.
Did you line it with black felt? Or was the grey fine? I wonder if home depot sells black pipe insulation for a 10in pipe....?
No lining is used. It is very lite and obsorbs dew; very durable.
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