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kennyt
climber
Woodfords,California
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Dec 17, 2012 - 11:47am PT
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Yep, Waterlox tung oil 5 coats
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survival
Big Wall climber
Terrapin Station
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Topic Author's Reply - Dec 17, 2012 - 12:18pm PT
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So ECF, you've got me wondering who the heck you are.
El Cap Fool? Old nemesis on Supertopo?
Back under a fresh avatar?
Beautiful instruments you've made there, but too much pointy stuff
for me personally. I like "round" stuff.
Don't get me wrong, I admire the work. I couldn't do it. It's just a personal taste thing.
So do you really not want us to know who you are?
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drljefe
climber
El Presidio San Augustin del Tucson
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Dec 17, 2012 - 01:53pm PT
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I have an enormous amount of pride in what I helped create.
I'd love to be able to spray about it, I'd love to be in a press photo with my team. Oh well, some projects are like that.
Luckily, the next project is not classified and when completed will garner much attention.
The primary mirror is a 4.24-m diameter, 75-mm thick, off-axis paraboloid. The outer 12-cm rim is masked by the aperture plate, thus allowing a 4-m aperture. The mirror will be manufactured from Corning ULE‡ or Schott Zerodur glass. The two are functionally equivalent and the choice of material will be determined by competitive bid. Silicon carbide would be attractive for its superior mechanical and thermal qualities, but the technology to manufacture such large mirrors has not fully matured.
The size of the off-axis primary mirror is unprecedented. Several telescopes use segmented mirrors that result in off-axis components, but the largest are the 1.8-m wide, 75-mm segments of the 10-m Keck telescope. Although no other large, monolithic off-axis solar or astronomical telescope exists at this time, personnel have worked closely with the major mirror polishers to ensure the feasibility of the design.
The mirror will be polished to a 20-Angstrom surface roughness, comparable to that of Gemini and other large nighttime telescopes now in operation.
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kennyt
climber
Woodfords,California
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Dec 17, 2012 - 07:02pm PT
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Sorry if Ive already posted this photo but it's one I finished up in Markleeville, Ca. last July
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mechrist
Gym climber
South of Heaven
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Dec 17, 2012 - 07:27pm PT
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Dats what I built recently... and a deck... not bad for a nerd...
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Plaidman
Trad climber
South Slope of Mt. Tabor, Portland, Oregon, USA
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Dec 17, 2012 - 08:14pm PT
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This what I used to build in Grand Lake Colorado. For over 6 years I got to build these beauties. Hand peeled with a drawknife many of the logs on this particular one.
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Brandon-
climber
The Granite State.
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Dec 26, 2012 - 06:35pm PT
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So, I'm filling in with an old crew over the holidays to keep the work flowing. It's really fun, we all sync together and know what to do.
We're putting cedar shakes on a roof. Probably twenty square, its a big timberframe over an indoor pool. Every six courses we install a strip of copper flashing. The copper leaches enough that it prohibits moss growth. Cool concept that I never thought of.
It's repetitive work, but it's of the highest quality and done with a great crew.
Not bad.
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mechrist
Gym climber
South of Heaven
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Dec 27, 2012 - 12:47pm PT
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Last summer I built this:
Before:
After:
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skywalker
climber
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Dec 27, 2012 - 03:53pm PT
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Hey plaidman,
I helped build those too when I first moved out here in 97'. I forget who the old man was but it was for sun valley ranch estates.
know about this??
S...
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Hardly Visible
Social climber
Llatikcuf WA
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Dec 27, 2012 - 04:20pm PT
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I just redid kitchen counters in granite tile and replaced long defunct dishwasher while I was at it.
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Reilly
Mountain climber
The Other Monrovia- CA
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Dec 27, 2012 - 04:43pm PT
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Y'all are givin' dirtbags a bad name with all that fancy stuff! :-)
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squishy
Mountain climber
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Dec 29, 2012 - 03:31am PT
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I finally finished my big drone (BEC skywalker airframe), this one can go far, like really far. I am hoping for 10 miles but on paper she can go much farther. It's stabilized by a GPS autopilot that feeds a secondary gyro stabilizer and she can fly to way points and preform missions that you program via laptop. She'll also return home at the flick of a switch or when video or control signals are lost (fail safe). The pilot has a camera that can look around and the onscreen display provides all the data you would ever need, like airspeed, altitude, compass, timer, and remaining battery voltage. I plan to slap on my Contour HD camera and get some cool videos in the spring, still lots of testing to get done 1st. So far the project has taken 6 months of planning and design, and only two days of actual building. I imagine the testing will be endless but I already have the transmitter programmed (all 9 channels) and the ground station built up with a DVR. She's ready for a maiden flight once the weather gets a little better.
Here's some pictures of the build. It's running the DOSD+ with GPS, FY30a, dragonlink control system, 1.3ghz 800mW vTX, corona 939 servos all around, pan and tilt camera mount, 700 line WDR security camera in a metal case, 12v voltage regulator, line conditioner filter, barometer and lot of shielding with aluminum tape...torriods on everything I thought necessary. I still have a lot of programming to do on the DOSD+ so the RTH works properly, but other than that, I think she's ready for some test flights...Seems to balance with two 3300 4cell lipo batteries for a total of 6600mah at 16-14 volts, a throttle test reveals that this bird will be wicked fast, she's running a 3536/6 1250 brushless motor from RCtimer spinning a 9x6 prop...I build the whole thing using Beacon Foamtac glue which is very very lightweight and then used epoxy where ever I though it needed it like the spars and motor mount.
I started with a small board to build and configure the electronics.
Getting pretty busy in there, here I was experimenting with the Xlator IMU translator but decided against it, the benefits of the false horizon seemed like a novelty, what I really wanted from the FY20a was stability.
Here's all the electronics laid out and working, the video harness on the bottom is running behind the board which is backed by shielding tape, any video wires passing near the board have been shielded or run behind this board, even the GPS antenna is shielded from below and even mounted internally. This same GPS long ago took hours to find sats, now it found 2 from inside my apartment.
Here's how it fits in the airplane, in this photo the baro is mounted near the vents and you can see the location of the GPS antenna. I also slapped in a cap on the dragonlink RX to reduce the chances of brown outs, I am only running a 5amp BEC on all this and needed some insurance for the test flights.
Getting all buttoned up and ready for glue, I found this was an good way to build this airplane, I have never done it like this in the past. After months and months of planning I just about had everything in mind before starting. This is mid-day on the second day of building. It took only two full days of work to build this entire ship.
Here's a look in the top compartment, I shielded it from below with some tape just in case the Opto ESC generates some noise.
All ready for the field. I now have the old FPV craft running 5.8ghz/HK openLRS in the background, the Skywalker and the quad, all ready for the field. I wish I didn't have to swap 1.3 antenna's though and might pick up some more, filters too.
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dlintz
Trad climber
Neebraskee
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Dec 29, 2012 - 12:16pm PT
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Way out of my league but I'm gonna try.
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Conrad
climber
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Dec 29, 2012 - 02:19pm PT
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Nice to see the plethora of re purposed material and older things getting re built.
With three boys at our house we have a fair amount of skateboards in various stages of use. This long board wore out where the trucks are mounted. With a saw and a a drill and some old rope it has a new life as a bosun's chair. The curvature will keep you firmly seated and it weighs less than a plank of wood.
For the Bozeman Ice Fest in early December we built a 40 foot tall comp wall out of scaffolding, dimensional wood and plywood. It took five of us five days to build it and course set. Take down took a day.
The hope is to eventually build an outdoor concert venue and climbing wall at the Gallatin County Fairgrounds. It will built out of re purposed 40 & 20 foot shipping containers and old lift towers from Bridger Bowl. It will be 78 teet tall if we can get it built. Long range dream.
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Reilly
Mountain climber
The Other Monrovia- CA
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Dec 29, 2012 - 02:38pm PT
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Squishy, you haven't gotten that call from Homeland Security yet?
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BASE104
Social climber
An Oil Field
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Dec 29, 2012 - 02:48pm PT
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OK. Show me a crack machine that you can take around the world...cheaper than an SUV to boot.
I will be working on this thing for months to get her ready.
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Brandon-
climber
The Granite State.
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Dec 29, 2012 - 02:51pm PT
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That's a great idea Conrad. Repurposing not only is eco friendly, but it helps to add a certain uniqueness to projects.
I hope it gets built someday.
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Norton
Social climber
the Wastelands
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Dec 29, 2012 - 02:57pm PT
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Ok, I know this is not made of wood, frankly I don't have the talent you all do with that.
But, I am kind of proud of myself for completely rebuilding my 1973 motorcycle, stripping everything off the frame and starting over from splitting the motor crankcases to rewiring.
It took years and a lot of book learning and hands on tooling.
I never was any good at this stuff in my youth as I was more of a nerd, but I think it came out pretty darn good and I had great fun working with my hands.
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