New Lnb changer

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Trust1 said:
Nice work , A pitty you did not put that rotary bubble lever on top of the laser level with the dish in that position, I like to know that angle to .
Have go outdoor , come on back later .
Click to expand...
I thought I gave up working for the man when I moved to Spain! But it will not be easy, I´ll have to balance the rotary level on the laser, bearing in mind the top of the lnb holder is in the way, but I have two other levels, so will give it a go!
 
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Trust1 said:
Nice work , A pitty you did not put that rotary bubble lever on top of the laser level with the dish in that position, I like to know that angle to .
Have go outdoor , come on back later .
Click to expand...
Have you heard of the saying " worked out on the back of a cig packet " ?
Well I have and the packet needed to be cut in half, giving me equal spacers!

jps1.jpg

Hope this helps!

jps2.jpg

Best a trained monkey can do! ( bear in mind , now in horizontal mode, not vertical ) best guess 9.8!
 
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mount holes.jpg
Trust1 said:
CJ , You missed the first question about the FOUR holes where the mount is bolted to the dish .
And the last question (for the day) the distance from the real bottum edge (not from the round feedarm) to line between the sidearm holes .View attachment 92601
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CJ , are you sure the data you posted for ( A to B = 56.5cm) is correct ? Seems to be a bit low .

I'm bit affraid to ask , but @Milamber , would you mind to do me a favor , the last one (for today) .
Would You check those at your dish ?
 
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@Trust1, these were again taken with a tape measure so only approx. Milamber's ones will be more accurate for sure.
 
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I have the suspicion that the a,b,c d, have changed, and it´s Milamber, not the name you stated! Being a wizard I know such things!
Witch ( wrong spelling by purpose ) dimentions?
 
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OK, I´m still up and about the castle! You wish to know the vertical dimension between the horizontal line of the support arms and the bottom of " wad "?
 
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Milamber said:
I have the suspicion that the a,b,c d, have changed, and it´s Milamber, not the name you stated! Being a wizard I know such things!
Witch ( wrong spelling by purpose ) dimentions?
Click to expand...
Sorry Milamber , I'm to young to know everything but still learning , from now on I will write dimension .
But I will make new mistakes , dont worry .
 
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Milamber said:
OK, I´m still up and about the castle! You wish to know the vertical dimension between the horizontal line of the support arms and the bottom of " wad "?
Click to expand...
Yes , that what I like to know and I gonna make a profit of your good mood and ask also for the lenght between A and C from this older picture .
With the 3 data (A-B B-C A-C ) and the angles You posted , I can check my calculations .
focal lenght.jpg
 
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I´ll settle for dementia , by the way , you learn quickly with misspelt words!
I´ll go take a peak at the new A to B, as per above diaphragm!
 
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Milamber said:
I´ll settle for dementia , by the way , you learn quickly with misspelt words!
I´ll go take a peak at the new A to B, as per above diaphragm!
Click to expand...
Allmost 70 years old but find my way home .
Hope You dont misunderstood me , I asked for the lenght between A and C from this older picture .
 
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Shirley you've lost the bubble?
 
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Trust1 said:
Allmost 70 years old but find my way home .
Hope You dont misunderstood me , I asked for the lenght between A and C from this older picture .
Click to expand...
No, it is I who was incorrect.
As most do, measured a to c " stated focal distance " from bottom of baby elephant arm to lnb face, comes out at 1100.
However, playing in the dark, with no oil torches on the castle walls, I took an exact measurement of your a to c, allowing for the 15mm you cannot measure through the elephant arm and calculate it to centre of lnb holder as 1120 mm not 1110 as usual method dictates, base to front, rather than base to centre.
All I can do!
 
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Captain Jack said:
@Trust1, these were again taken with a tape measure so only approx. Milamber's ones will be more accurate for sure.
Click to expand...
Sorry, only just spotted this. All my measurements are done with a tape measure, I don´t trust laser measurements, just use lasers to get the exact point to measure from.
Sorry if anyone was mislead
 
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Milamber said:
No, it is I who was incorrect.
As most do, measured a to c " stated focal distance " from bottom of baby elephant arm to lnb face, comes out at 1100.
However, playing in the dark, with no oil torches on the castle walls, I took an exact measurement of your a to c, allowing for the 15mm you cannot measure through the elephant arm and calculate it to centre of lnb holder as 1120 mm not 1110 as usual method dictates, base to front, rather than base to centre.
All I can do!
Click to expand...
Calculating with the A B = 112 / AC = 112 / BC = 835 triangle does not compare with the angles you found .
A German board member will do the same messurement this weekend , I hope he has a digital protractor .
If I have the right data I can adjust the 3 sections from the special stand and find the right position to attach the sidearms .
vertical stand.jpg

Section 1 = aiming point frontline dish B
Section 2 = hight for side-arms to dish
Section 3 = bottom side dish C
 
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Trust1 said:
Calculating with the A B = 112 / AC = 112 / BC = 835 triangle does not compare with the angles you found .
A German board member will do the same messurement this weekend , I hope he has a digital protractor .
If I have the right data I can adjust the 3 sections from the special stand and find the right position to attach the sidearms .
View attachment 92882
Click to expand...
Bearing in mind by bubble is analogue, and best guess, can you do a pictorial to see where it may be out, I am more than happy to check any, or all, measurements again
 
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Just checked you pic.
A to b 1300
a to c 1230
c to b 900
at a rough guess
I stated my angles were best guess, my measurements are not a guess, what did you base the build on?
 
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