H180 Modding ?

[Captain Jack]

Conical nuts is also an idea, though probably not the best bearing...

 

[RimaNTSS]

I just would like to add that originally, on Jaeger1224, conical nuts were widely used (at least 4).

 

[Captain Jack]

Ah, yes, you are correct! Those aren't moved on a regular basis, though, right?

 

[RimaNTSS]

Yes, right, they were "working" only during installation. Rest of the time they were still holding axes centered.
Do you think Vipersan will use them much more often?
For antennas smaller than 2 meters, adjusting of elevation only needed if arc is not perfectly tuned. IMHO

 

[Huevos]

For antennas smaller than 2 meters, adjusting of elevation only needed if arc is not perfectly tuned. IMHO

It is essential for tracking inclined satellites, but in my opinion should be done by adjusting declination, not elevation.

 

[RimaNTSS]

Yes, but..... which inclined sats you are talking about?

 

[aceb]

Surely any sat that is inclined benefits from declination control? IME feeds are often found on inclined birds and with the lower power that's often used peaking for maximum smoke is essential.

 

[Vipersan]

I totally agree Huevos ...Declination is the better way to do this ..but I made my choice so will stick to what I started..
Yes Carl will get used to track inclined birds in Ka partcularly so may well see a good bit of use.
For now the current setup is useable ..but in my search for a trouble proof system I would like to get some bearings in the mix .
This is on my to-do list but may not be this year.
In truth such projects take their toll on my health ..and have to rest up between big projects.
Keep the discussion going lads ...and I shall look forward to ' sucking all of the marrow'
;)

 

[Vipersan]

It's raining again ..so can't play out ...doh..!
Spent the last hour cruising ebay ...and found these..
http://www.ebay.co.uk/itm/M10-SECUR...ply_Security_Equipment_ET&hash=item4adba86a04

Stainless steel security M10 SheerNuts..
Now I'm wondering ...would these make half decent bearings on a stainless steel M10 rod ?
Of course I'd have to sheer 'em first or slice off the nut to get at the cone ..
Looks promising though ..at least for a short term fix ..
what do you guys think ?
I haven't bought 'em yet ..but thinking about it seriously.
rgds
VS

 

[RimaNTSS]

I haven't bought 'em yet ..but thinking about it seriously.VS

IMHO 10 conical nuts for only 3,99 it is good price. They will make perfect bearing for your mount.

 

[Lazarus]

Conical nuts.

Mind boggling.


"Nurse!!"

 

[Riverblue]

Whatever you do don't get any comical nuts!

 

[Vipersan]

So ..this is going to be fun ...NOT...
Today I am mostly jacking up and supporting Carl who is now pointing Due South and out of commission for the time being..
Using the recently added elevation jack as rear support ..and a combination of scaffold pole and 3 by 2 as front and under supports..
Plus a carefully shaped wedge topped block of wood atop the pole under the motor ..having removed the lnb assembly..
I am attempting to replace the 2 side M10 nuts and bolts with a straight through M1o stainless threaded bar...approx 6 inches long ...
which will carry the cone nuts and various Nylock nuts and washes to create a crude bearing...
All this without removing the dish and motor...

The trickiest bit will be to include cone coutersinks to the inside of the Ally motor uprights..
This took some thinking about and I think I now have the solution..
A bit extension which will pass through one support and then once halfway fitted with a quickfit hex shank countersink bit..
thus I can drill having passed through the first upright and into the second from the inside..
This procedure would then be repeated from the other side..
Make sense ?
I'm confused ..so why wouldn't you be..
The new M10 bar will then be passed through the 2 ally uprights and outer steel pole to mount picking up the cones washers and lock nuts as it passes..
once in position more Nylock nuts on the outside of the steel mount to secure the assembly..
Wish me luck ..and fair weather with no wind next week..
;)

 

[Vipersan]

Nothing Easy about this ...
been working in a confined space for a few hours..
Managed to countersink the Ally uprights a little from the inside ..and now I have the new Stainless Steel threaded bar in place with a cone in each side of the Ally and 2x sets of M10 nuts either side for locking ..
Took a break before fitting the outer cones and Locknuts..
Hope these photos make sense..
rgds
VS

 

[RimaNTSS]

Make sense. And, I suppose, outside you will have another 2 conical nuts and 2 locking nuts?

 

[Vipersan]

Make sense. And, I suppose, outside you will have another 2 conical nuts and 2 locking nuts?

Indeed I will Rima ..but can't countersink as far as I'd like on the outer steel bracket ..
But ..it will have to be sufficient..
rgds
VS

 

[Vipersan]

So ..I'm happy with this mod so far ..
It looks like it is going to be adequate ...only time will tell..
certainly there is less vibration when elevation is changed ..thus the dish settles to it's new position more quickly.
Mighty tricky to get you a few snaps as I have to shoot blind with the camera holding it to point in the underspace ..
Here they are though ..
you get the idea.
rgds
VS
...now for a long soak in the bath ..
I've earned it.
;)

 

[Vipersan]

I'm gonna need another 99 position Vbox soon ...but I'll have to wait..
Too much spending of late..
If anyone has one surplus to requirements or indeed spots one at reasonable cost ..please let me know.
;)

 

[Captain Jack]

Looks good and sturdy. Grease will help the movement. I guess there's no play there?

I have a non-Vbox type 36v positioner, if you want it for the cost of postage? It's EasySomethingOrOther 2000 - has a remote but no idea how many positions can be stored on there.

 

[Vipersan]

Looks good and sturdy. Grease will help the movement. I guess there's no play there?

I have a non-Vbox type 36v positioner, if you want it for the cost of postage? It's EasySomethingOrOther 2000 - has a remote but no idea how many positions can be stored on there.

Not detected any play in it up to now ..and movement is easier.
Thanks for the offer buddy ..but I already have a 36v stand alone positioner ...
The reason I want a V-box is that ..

having so many lnbs on Carl ..some of which are a good distance from the focus ..I'd like to ne able to preset elevation for these non focal lnbs..such that one command will instantly adjust both AZ and EL for max signal at these extremes ..
The SL3 for example gives better results when moved a couple of clicks (elevation) ...as the True arc can only apply at the focus..
everything else being a compromise..
Not so critical in C or Ku ..but makes a major difference in Ka.
rgds
VS