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What dissimilars were you using OnOff?

I'm looking for some now, my stock of Eutectic 680S's is running low! ; (

I still have some Fontargen E106's though.

They have only lasted me 30 years.

 
What dissimilars were you using OnOff?

I'm looking for some now, my stock of Eutectic 680S's is running low! ; (

I still have some Fontargen E106's though.

They have only lasted me 30 years.
309's on the nuts and studs.

How many you after? Just did a little stock take and I've got about 9 309 rods left. Also got 15 316 rods left. They will probably last me on the st/st front. I got the 316 rods when I copied a Maplin gable end aerial bracket out of st/st angle about 5 years ago! Then a mate had a couple the other year when we did his electric sliding gate.

Then there's the MS rods, the MIG wire......... :lol:

 
No mate I'm looking for a box full probably, the 680's are a real dissimilar rod rather than a 309/316 type, they are OK for tool steel, about the only type of steel you can't weld with them is not even steel, it's cast iron! ;)

 
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Had a trial fit this evening of the telescope mount - all looking good!

Was due to go for blasting tomorrow but I'm thinking now on extraneous conductive parts lines........there are in effect 3 pieces; the main tube which will have x4 M16 stainless studs set in a concrete base about 900mm deep in the ground, the swivelling bit that locks to it and then the height adjustable top plate on that. IP66 230V socket will go on the main tube with armoured coming up the tube. Each of the 3 parts will be zinc flame sprayed then powder coated. Will it suffice I wonder just to whack an M6 stud into the main tube to fly lead onto or should I be doing the same on all 3 elements (will be a pain doing this on the top adjustable one)? The powder coating should tbh provide excellent insulation. Or am I worrying too much? (Then there's the lightning issue............. :coat ). Cheers.





(Must stop drinking the red wine now I'm thinking........pain lower left back.....kidneys?)

 
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Cheek! That's quick for me!  :innocent

It's actually my big brother's scope in his garden. For some reason I decided it was about time to finish it. Nine and something inches Celestron. I just designed / reverse engineered the pier from some photos of a commercial one on the net. I just had the water jetters cut the plates from my DXF AutoCAD files. A few little embellishments like the power socket on the side. Had all the metalwork shot blasted, zinc flame sprayed and 2-pack epoxied. Really needed a big lead cap on the plinth rather than the aluminiumised "roofing felt" but hey ho! There's a 4' deep mass concrete block under it for stability/dampening.

He's well pleased with it, just been down to me to collect a couple of replacement fittings. Up untilnow it's been on a tripod.

I'll post some shots depending on what he takes.

I secretly want one now!

As for the cover he has a special "bag" and silica gel "packs" that go in it. I did suggest moving his shed and having the roof sliding on elevated Helm tracks but it was seemingly too much grief.

 
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Big bruv's happy:

"A couple of experimental shots taken with the high end planetary camera this afternoon. Did some fine adjustments on the mount head but it was  only about 5 degrees off to start with. Very very stable and so much easier to use :)  "

Moon 1 15Feb16.jpg

Moon 2 15Feb16.jpg

A clear night tonight so hoping for some better shots.

I just want to see the Soup Dragon.....

 
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