How to block lights while observing
Posted 18 May 2009 - 02:50 PM
Posted 18 May 2009 - 03:33 PM
Posted 18 May 2009 - 04:28 PM
Posted 18 May 2009 - 04:38 PM
Please post, with this in mind.
Posted 18 May 2009 - 09:26 PM
Here is a link, I just modified the design. Light Shields
I have to say that my dark adaptation on both nights was vastly improved over previous times and that made for a better experience on both nights. I'm getting ready to set up again tonight. I need to build two more and then I'll be set.
Posted 18 May 2009 - 09:32 PM
Posted 18 May 2009 - 09:43 PM
Posted 18 May 2009 - 09:54 PM
Ooh! I like this!
Thanks. I did one of those PVC and plastic things in '03. Too much work, too hard to move once it was up and it didn't take punishment that well.
I came up with the foam board and duct tape idea in Feb of '04. If you recall, Florida had four major hurricanes hit later that year. I used that blind to protect my generator during a few of those storms. Foam board and duct tape - tuff stuff.
Posted 18 May 2009 - 10:54 PM
I'm intrigued too because I'm such a mechanical klutz/nincompoop, and this looks like something even *I* might be able to produce, and I have a huge need for just such a contraption.
EDIT: Ok, I found the previous page under "Equipment" where it says, "I used 2" foam board - you can find it in the insulation section of your local home center." I'm still wondering what holds the things up, though - they're bound to be very light (good for moving, not so good for staying put in the wind.)
Posted 19 May 2009 - 06:19 AM
Where did you find these foam boards?
The insulation section of any home center...
Posted 19 May 2009 - 06:25 AM
Duct tape: You need the 3" wide type. Blowes sells it, I dunno about Casa Depot. The 2" will work in a pinch, but wider is better. One strip down the middle and then one down each edge. You can add a few strips perpendicular to this too if you want (I later did). The only tricky part in this is making sure you tape the correct sides together so as to preserve the accordion effect. Leave the beer in the fridge while doing this.
Anchoring: During normal use (zero to light winds) I don't need to anchor it at all. Those foam boards are surprisingly stable all by themselves. For medium winds, the very end pieces have extra large wire ties poked through them about 4' off the ground and about 4" in from the edge to act as anchoring loops - I stake it to the ground with one of those nylon tie-down straps (the kind with the cam buckle - not the ratcheting kind). For the hurricanes I closed it completely around the generator - it was no longer an open "U" shape but a triangle.
Also, for summertime use here in humid Florida I have another panel that I throw over the top of the open "U" end to provide overhead protection from the dew and yuk.
Note: Those foam boards as bought are 8'x4'. I cut 2' off the long side to make 'em 6'x4'. I of course saved the 2' cut offs and they've been darn near as handy to have around too. Mine gets left outside most of the time, so I have to re-tape it about once a year since duct tape and UV don't seem to mix that well...
Pros: It's very tuff and very light. I can accordion the thing up and carry it in one piece sitting on my shoulder. It looks odd, but is easy.
Cons: It doesn't travel well unless you have a truck or travel trailer or RV or something else to bring it in.
foam light block panels
Posted 19 May 2009 - 08:49 AM
Posted 19 May 2009 - 01:06 PM
Posted 19 May 2009 - 03:00 PM
I figured the deleted post probably mentioned the word lead.
Posted 19 May 2009 - 03:16 PM
Posted 19 May 2009 - 03:33 PM
Posted 19 May 2009 - 03:46 PM
Wait 'til the first "redneck" comes across your path!! :grin:Mike
Our club does a lot of outreach programs at state parks. Most folks don't realize that big yellow light outside their trailer is bothering us astro types. I've found the easiest way to get them to turn it off is to invite them over for a view. When they get there, they almost always comment on how bright their own light is. Problem solved, I didn't have to say a negative word to anyone and I usually make a new friend in the process...
Posted 19 May 2009 - 04:08 PM
If they had a spool of material that could be attached to another spool or pole so I could simply separate the two spools and have the material unroll that would be neat, but I probably won't find anything like that which would be large enough.