New Lnb changer

Trust1

Trust1

Specialist Contributor
Messages
845
My Satellite Setup
1.8 m CM at SMR 1224 + Elev. with 7 lnb changer Ku (lin - circ) - Ka (lin - circ) C (lin - circ)
My Location
Nijmegen Netherlands
Today I finished the new Fibo lnb changer for 6 different lnb positions .
The old one only could turn 180º and was controlled by a Omron PLC .
The new one is controlled by diseqc 1.2 via a Openbox F-500 , just made only 6 channels at different satellites .
I noticed that with diseqc 1.2 , the max rotation is 270º , maybe enough but I wanted more .
At the little SG E-motor is a gear with 11 teeth , I changed it for one with 16 teeth .
Therefor the motor must be displaced a mm .
Z11 to Z16 gear.jpg
That makes 392º rotation with the same amount of pulses possible and speeding it up.
By cutting-off a part of a second gear and fitting it together with the existing gear , I have a fully round gear .
360 gr gear.jpg
Have to made two new cams (alu) , one for the end-switch and one for the zero switch .
endsw cam.JPG
To make shure there be no play in the future , loosen the bearing holder at one side just enough it could move with a little friction and attached a spring pushing the worm to the gear .
play reduce.jpg
Made a new adapter plate to attach the lnb-holders for the , SL3K (2 positions lin / circ) the C lnb , the original Fibo feedhorn (Ku) the Inverto KAKUO and a spare place to test standard LNBF's .
Quite a job to put them all in te right place (focal dept / hight) , not optimal yet !
The feedarm with the equipment has a load of 5.5 kg .
6 position lnb changer.jpg
Just for the movie I attached a Subreflector from a Fibo 90 to it .
 
Last edited:
A

A nonymous

Well-Known Member
Messages
3,586
What a fantastic bit of kit and a great design and build.

Nano
 
John

John

Enthusiast.
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2,269
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
Very impressive & inspiring
 
zorbua

zorbua

Regular Member
Messages
883
My Satellite Setup
Dreambox 8000 HD
Dreambox 800se
Dreambox 900UHD
Clark Tech 5000 HD
Numerous other receivers (Retired)
Dish Gibertini 1.5 M
Dishes Gibertini 1.2 x2
Dish Gibertini 1 M
My Location
Malta
Amazing, really well done,
 
Captain Jack

Captain Jack

Модератор
Staff member
Messages
10,763
My Satellite Setup
See signature
My Location
North Somerset
Just... wow... Could do with that for my Fibo :) *hint*hint*nudge*nudge*
 
scopus

scopus

Specialist Contributor
Messages
2,140
My Satellite Setup
Primesat/Famaval 1.8 PF C/ku/Ka, Octagon SX8HD1, SX88, Openbox S3 Mini HD-V8S Freesat V7 HD-V8 Finder, Amiko A4K Combo, Satlook Colour HD Spectrum, Sansui A909 Amp and BOSE Acoustimass speakers for the audio.
My Location
Staffs UK
Analoguesat

Analoguesat

Administrator
Staff member
Messages
46,865
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Skybox F3
Sky+ UK.
My Location
Scottish Borders
Fantastic - the engineering skills of the members of our forum never fail to amaze me :)
 
MCelliotG

MCelliotG

Specialist Contributor
Messages
729
My Satellite Setup
TBS 5925, Mut@nt HD51, EDISION OSMINI, MABO 130X144, DRAGONSAT DS3000 LED MOTOR, INVERTO BLACK ULTRA TWIN LNB
My Location
Thessaloniki, Greece
Absolutely awsome!!!
 
lovelyperson

lovelyperson

Dreamer
Messages
892
Location
Alicante, España
My Satellite Setup
2.0m PF dish
1.8m PF Famaval
1.8m PF Marrafa
1.4m Tecatel offset
1.2m dish + Stab HH120
1.0m dish fixed 19.2ºE(Movistar-Spain etc)
TBS 5925 USB
TM5502, TM5402 mk3,
Octagon SX88,
Edision Primo IP S2
60.0ºE - 63.0ºW
My Location
Alicante, España
Fantastic - the engineering skills of the members of our forum never fail to amaze me :)
Yes AS.......everyday we see/read of their thoughts and makings......incredible and inspiring.

Other sites make comments about here similar to 'take a look at satellites.co.uk, they seem to know what they are doing there'.

Glad we are part of it....well done all. respect-067.gif
 
Trust1

Trust1

Specialist Contributor
Messages
845
My Satellite Setup
1.8 m CM at SMR 1224 + Elev. with 7 lnb changer Ku (lin - circ) - Ka (lin - circ) C (lin - circ)
My Location
Nijmegen Netherlands
Just... wow... Could do with that for my Fibo :) *hint*hint*nudge*nudge*
The use of a DARK MOTOR dark motor - YouTube would be a very good and easy start .
360º gear , easy to modify endswitch , automatic play adjustment , F-conn. downside .
I still have a piece of triangular feedarm (maybe enough for 2 changers ) and 12 mm inox rod .

Spent almost all the afternoon to adjust the SL3K lnb till i noticed i was struggeling with a faulty right-angle F-conn .
Now the Fibo horn , the KAKUO and the SL3K are optimal adjusted .
Next to do , the C-band lnb and the lnb holder for occasial testing Lnb's .
IMG_1174.JPG
 
RimaNTSS

RimaNTSS

Super Moderator
Staff member
Messages
4,797
My Satellite Setup
Some SAT-related hardware.
My Location
N-E from Riga
Before I set it up , I want to finish the new lnb revolver for that dish .
Allready made a prototype
View attachment 87831 View attachment 87832 .
First of all, I think it is great idea to use out-of-shelf Diseqc 1.2 motor to change LNBs! Of course it would be possible to make them turning by servo-motor, but that would require making some kind of waterproof case for servo-motor and attaching additional cogwheels and so on. LNBs separation at 60* is maybe little bit too much, could also be 45*. I will also go the same way, as I have several Diseqc 1.2 motors stored somewhere. And 3 LNB holder itself will make out of INOX approximately like that ScreenHunter_543 Nov. 24 21.52.jpg I feel that slight adjustment of each LNB up/down could also be needed. Will use standard INOX 40mm and 60mm pipe clamps.
 
RimaNTSS

RimaNTSS

Super Moderator
Staff member
Messages
4,797
My Satellite Setup
Some SAT-related hardware.
My Location
N-E from Riga
Made a plate out of 2mm thick material. It is 120mm in diameter.
 

Attachments

John

John

Enthusiast.
Messages
2,269
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
Made a plate out of 2mm thick material. It is 120mm in diameter.




... very nice Rima, look forward to your next progress report. This interesting thread has started a lot of interest for people to have a go at making one. :)
 
Trust1

Trust1

Specialist Contributor
Messages
845
My Satellite Setup
1.8 m CM at SMR 1224 + Elev. with 7 lnb changer Ku (lin - circ) - Ka (lin - circ) C (lin - circ)
My Location
Nijmegen Netherlands
Yesterday I managed to fit the CM with his new support to the EHM-100 rotor .
CM at EHM rotor.jpg
This morning I started with cleaninh the dish , turned it to zero and attached the original CM set of feedarms .
Put for a moment the laser in the lnb holder and marked the spot .
Next thing to do was , build a stable second stand with a in all directions adjustable 40 mm lnb holder (reference point)
second stand.jpg
Put a short piece of 40 mm PVC pipe in the CM lnb holder and adjusted the reference holder exactly in line .
Removed the CM feedarms and attached the new rectangular feedarm (100 x 18 mm) with the lnb changer .
lnb changer at reference.jpg
From there it was easy to make and attach the new 12 mm alu side arms .
adjustable side arms.jpg
As you can see on the last picture , the darkness appeared .
ready.jpg
This afternoon the postman brought me new alu lnb clamps , tomorrow they will be on changer , ready for tests .
 
John

John

Enthusiast.
Messages
2,269
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
Small continuation on rotation plate. Made one LNB-holder, which could be placed over any pair of holes and also adjustable in height.



... i think it's a good idea to have the slotted lnb bracket for fine height adjustment, i'm going to adopt the same idea on mine. My motor came today, never used one of these devices before, and i have to say that the weight of the thing was a bit of a surprise. It is very well made but heavy, which has given me some concerns about the total weight of the motor and a possible lnb cluster of 4 , including a chunky C-band unit, hanging out on the end of the support boom. I'm in the process of completing my rear of dish bracing of the side support arms and i now consider this as an essential thing to do. Iv'e even thought about mounting the motor at the bottom dish rim position on a re-inforced bracket and having a "half-shaft" type drive rod , through bearings, up to the lnb plate ?? ..... still in thought mode over this as to which will work out best for me :)
 
John

John

Enthusiast.
Messages
2,269
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
Yesterday I managed to fit the CM with his new support to the EHM-100 rotor .
View attachment 87967
This morning I started with cleaninh the dish , turned it to zero and attached the original CM set of feedarms .
Put for a moment the laser in the lnb holder and marked the spot .
Next thing to do was , build a stable second stand with a in all directions adjustable 40 mm lnb holder (reference point)
View attachment 87968
Put a short piece of 40 mm PVC pipe in the CM lnb holder and adjusted the reference holder exactly in line .
Removed the CM feedarms and attached the new rectangular feedarm (100 x 18 mm) with the lnb changer .
View attachment 87969
From there it was easy to make and attach the new 12 mm alu side arms .
View attachment 87970
As you can see on the last picture , the darkness appeared .
View attachment 87971
This afternoon the postman brought me new alu lnb clamps , tomorrow they will be on changer , ready for tests .



.... Very very neat and clean install, i'm sorry but i am going to have to pinch some of your ideas , hope you don't mind :D
 
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