Cave 12.5" Transportable Obs at CSPAMP?
Posted 27 July 2014 - 06:17 PM
I'm still having problems with the brakes on my VW pickup, so I thought I wouldn't be able to take the Cave to Pinos next weekend. No big deal, I've got a lot of classic scopes. It's just that I sorta promised to try to bring the 12.5" this time.
So it occurred to me, while I was measuring my Eurovan's space behind the front seats to see if the OTA would fit, that I might be able to use a small chain hoist to lift the GEM off the pier by hanging it from one of those big cargo ties in the roof just inside the rear door.
I picked one up at Harbor Freight yesterday. The only thing subspiffy about this idea is that the chain hoist can't move in or out, so I'll have to kind of swing that GEM into the van to get it in. Even that might not be a big deal.
I'm not sure I want to load it today (worked on installing a couple gates in the heat, rain and high humidity all morning, so I'm kind of grody and tired), but I might roll the scope over to the van and see how easy it might look to do. But save the big task for Friday morning, as I'm getting ready for the trip to Pinos.
Anybody else use one of these chain hoists to move their heavy scopes around?
I'll take pics and post them, as I work this out.
Posted 27 July 2014 - 06:27 PM
Here's the scope I hope to take with me:
Posted 27 July 2014 - 06:34 PM
The OTA is the next heaviest thing, but if you pull the mirror, that'll help alot.
A pair of saw horses can be used to lay the OTA on by rolling the scope up and laying it down, then remove the counterweight, then the knobs holding the OTA to the cradle and then roll the mount away - one person can do this!
Then, when you get there, just put it all back together again.
Posted 27 July 2014 - 06:57 PM
I bet I could roll the scope up to the back door of the van and stick the tube halfway in, so I can remove the counterweight and then the ota, and slide the ota into the van and off to the side so I have room for the mount.
Is your mount really 2" shafts? I thought all the "smaller" ones were 1 1/2" shafts". (Unless they were lightweight deluxes with 1" shafts.
The observatory mount has 2 1/2" shafts. The dec shaft is 36" long and the saddle is 11 1/2" x 29 1/2".
If I have to tear it down, I'll just bring something smaller. :o
Posted 27 July 2014 - 07:13 PM
The early 12.5" Cave mounts had a 2" Dec Shaft and a 1.5" RA shaft.
Posted 27 July 2014 - 07:18 PM
Thankfully, the legs come off the pier with the big knobs. Looks simple, though I've never taken it apart.
Wow, why would Cave use 2" shafts for the dec and only 1 1/2" for the RA? Seems bass ackwards.
Posted 27 July 2014 - 07:25 PM
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Posted 28 July 2014 - 12:58 AM
Posted 28 July 2014 - 09:12 AM
The second alternative - U-Haul - they rent those things. The question is, for a one-time trip, should it be U-Haul or an "investment" and buy your own?
I'd buy my own, but there's no place for me to store it. So I'll either get this puppy in the van, rent a trailer for the FJ, or fix the brakes on my truck - all in the next few days! (and exciting things are happening on both sides of Mars, so I don't want to take too much time off! )
I think I'm leaning toward taking the van, because I can be comfy and stuff. And in my twilight years, I like comfy!
Posted 28 July 2014 - 09:22 AM
But even with the brakes working well and safely, it'd likely take me twice as long to climb that hill as with the Eurovan. Probably 3rd gear and 35mph from the base of the grade nearly the whole way up!
I also didn't pick up one of those pickup hoists this weekend, since I know I'll have to do some welding to mount it in my truck. And i'd have to bring a tent to sleep in, but I could probably set it up on the truck when the scope isn't there, so I could camp with my stuff.
Posted 28 July 2014 - 09:32 AM
you need a portable shop crane. They will lift the beast and will allow to roll it in. The lift also breaks down for easy transport.
normally I have used these to take engines in and out of cars.
Yep, as you can see I do have one of these puppies. It's a beast, though. Probably at least as much hassle to bring along and assemble as the scope itself. I was thinking more along these lines: http://www.harborfre...60732-9889.html
My truck may look homely, but they've got quite a following. I don't want to make any irreversible mods to it, so the crane would have to mount using the existing bolt holes, so I'd have to weld up a mounting plate that uses them that the crane attaches to. I'd put it behind the cab, though. Since the side gates fold down, I could load the mount from the side, not the rear (and it's not heavy enough to tip my truck over!).
TJ: I never understood why American truck makers don't make truck beds like this.
Posted 28 July 2014 - 10:00 AM
Posted 28 July 2014 - 10:02 AM
The man is spry for his years!
Posted 28 July 2014 - 01:34 PM
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Posted 28 July 2014 - 04:05 PM
Does your crane break down into smaller pieces?
the new ones all do. They are very easy to transport. I have picked them up in the back of my benz wagon. fit in there very easy.