Heavy duty polar mount prototype 1

[Archived-1]

Hi I made a start on the mount today, I am pleased how things have worked out, I need to check a few angles and maybe alter a few things but so far so good.

 

[Journey]

looks really good mate, great job so far

 

[Archived-1]

looks really good mate, great job so far

Thank you, I just need to get it clear in my head then I can start work cutting all the steal to size

 

[Captain Jack]

Wow! Nice job! You are not one for wasting time, eh?

 

[RimaNTSS]

Great modeling out of wood! Before you make it from metal just think about couple of things:
-Dish should be as close as possible to polar mount
- It is better to make center of gravity of dish little bit lower, that should help to move antenna from far-East and far-West position, antenna will work as counterweight. On the picture red lines show position of frame.

 

[Archived-1]

Wow! Nice job! You are not one for wasting time, eh?

Thanks CJ, ive wasted two weeks trying to locate one, I wish I would have just got on with making one now and I would have it up and running, she will be a heavy beast but better than anything on the market for a 2.4 so she will be on top of the job.

 

[Archived-1]

Great modeling out of wood! Before you make it from metal just think about couple of things:
-Dish should be as close as possible to polar mount
- It is better to make center of gravity of dish little bit lower, that should help to move antenna from far-East and far-West position, antenna will work as counterweight. On the picture red lines show position of frame.

Thank you Rima, but if that is close like you say it wont go very far round. it has to be there to hit the arc, I fabricate wood nearly every day it is like that for a reason but thanks m8

 

[Archived-1]

This picture should explain it more rima, you can now see the reason behind it. if anything it could do with been a little further away,

 

[RimaNTSS]

What about this (Picture)? Dish is closer to the mount and center of gravity very low. And dish will go almost H-H.

 

[Archived-1]

What about this (Picture)? Dish is closer to the mount and center of gravity very low. And dish will go almost H-H.

TBH Rima I don't think there is much wrong with what I have done ?, and it looks like they will be to much stress here ?.

Also its not a problem if its a little of gravity it will have a powerful jack on it.

 

[RimaNTSS]

Martin! There is no much wrong you designed, but as I've said earlier, for sure, will be issue how to get antenna out of edge position. BTW, if you already going to make DIY mount, why you can not make also new vertical pipe?
Of course, in that blue ring could be some stress, but maybe not critical.

 

[RimaNTSS]

Here is picture of mine DIY mount for 1,8m metal PFA. Only problem with that, is - I have never had enough time to finish installing it. Mostly INOX.

 

[Archived-1]

I want the dish on a 4.5 inch pole rima for stability so making another pole mount I will be in the same boat, the dish will have two jacks on it so if its a little out it does not matter I can move it in to line,

I have had a good think of what I am doing not just gone out and started work on this project a lot of thought has gone in to it;)

 

[Archived-1]

Here is picture of mine DIY mount for 1,8m metal PFA. Only problem with that, is - I have never had enough time to finish installing it. Mostly INOX.

Nice work rima ,We had very strong winds a few weeks ago and I want to be able to move my dish and lock fringe in them conditions, and I am 99% sure this design will do just that TBC .

 

[Archived-1]

Strong welded nut plates, anyone used these, any recommendations if so please ?.

 

[Archived-1]

Hi, I am wanting to incorporate the off set angle to my mount, what axis will need to be altered please,

I can only presume it's the bottom of the vertical pivet ?.

I popped to see my fabricator today and I should be good to go for using his workshop and them just welding things up, I have to pop back tomorrow to confirm this.

I hope to make prototype 2 tomorrow with a few minor alterations .

 

[Archived-1]

I have made prototype 2 today, ive took on board some of rima ideas thanks rima I could not see further than my nose end, but after sitting back and some help from a us forum I have this now,

The two points that adjust the dish will also make it more stable than (PT 1), i've removed the plate on the top and going to remake this with wide angle iron, that as allowed the gap to be closer and less stress thank you rima,

I have been back to my fabricator and its going to cost me £100 + parts I will be doing all the cutting in there workshop and the chap welding, hopefully next Saturday will be the start day I just need to order some bits that needed .

 

[Captain Jack]

Great job! Perhaps you can make a couple and sell at a profit?!

One question - where will the jack arm attach to?

 

[Archived-1]

Great job! Perhaps you can make a couple and sell at a profit?!

One question - where will the jack arm attach to?

Thanks CJ, The jack point only one to start with will just be made up last I will just offer it up and weld something to suit same as the elevation just make something up as I go along.

It will all be made up from 50mm/50mm/5mm square box section apart from the first pivot point that will be a little bigger.

 

[Archived-1]

Probably something like this. but I will be able to position it better when everything is in place.


Also i have a new location for the 1.8 .