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  #1  
Old 22-01-21, 21:13
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Jonathan Moore Jonathan Moore is offline
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Evening All,

Things are progressing steadily in the right direction but not as quickly as I would desire. I attached the light and the power plug in the turret, a small job but another one off of the list and I have been making the components for the turret rotation gearbox.
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File Type: jpg DSC06973.jpg (18.4 KB, 3 views)
File Type: jpg DSC06972.jpg (19.1 KB, 3 views)
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1950 Land Rover series 1
1967 Land Rover series 2A LWB
1986 Land Rover series 3 SWB
1938 DKW SB200
1944 DKW NZ350-1
1967 Ural K750 sidecar outfit
1944 VW Kubelwagen KDF82
1942 Steyr 1500A
1944 Morris C8A
1943 Chevrolet CMP8A HUP?
194? Bedford QL
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  #2  
Old 22-01-21, 21:18
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Jonathan Moore Jonathan Moore is offline
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The gear box now has it's attachment brackets welded on.
I assembled the gearbox tonight, just to see how it all fitted, it's surprising how many parts there are and this isn't all of them.
It all appears to fit ok, now I just have to machine all the key ways and make the rotation wheel, if only it were that simple.



Jon
Attached Images
File Type: jpg DSC06971.jpg (483.8 KB, 2 views)
File Type: jpg DSC06976.jpg (24.2 KB, 1 views)
File Type: jpg DSC06978.jpg (26.1 KB, 3 views)
File Type: jpg DSC06979.jpg (23.3 KB, 2 views)
__________________
1950 Land Rover series 1
1967 Land Rover series 2A LWB
1986 Land Rover series 3 SWB
1938 DKW SB200
1944 DKW NZ350-1
1967 Ural K750 sidecar outfit
1944 VW Kubelwagen KDF82
1942 Steyr 1500A
1944 Morris C8A
1943 Chevrolet CMP8A HUP?
194? Bedford QL
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  #3  
Old 20-02-21, 21:35
Jonathan Moore's Avatar
Jonathan Moore Jonathan Moore is offline
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Location: mid wales britain
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Evening All,

At last I have finished the turret rotation gearbox, almost. It turned out to be quite complex but that was entirely due to me being too fussy.

I think the turret gearbox had*three settings, fine, course and hand, by which I mean that you can rotate it by pulling it around, all three would be too*complex for my little brain, so I decided just to incorporate two, hand and fine.**when the lever is in the vertical position the gearbox is in hand and when the lever is push forward or backwards the gearbox is in fine.

** *

**
Attached Images
File Type: jpg DSC06984.jpg (26.9 KB, 1 views)
File Type: jpg DSC06985.jpg (27.8 KB, 2 views)
File Type: jpg DSC06986.jpg (24.8 KB, 1 views)
File Type: jpg DSC06987.jpg (23.7 KB, 1 views)
__________________
1950 Land Rover series 1
1967 Land Rover series 2A LWB
1986 Land Rover series 3 SWB
1938 DKW SB200
1944 DKW NZ350-1
1967 Ural K750 sidecar outfit
1944 VW Kubelwagen KDF82
1942 Steyr 1500A
1944 Morris C8A
1943 Chevrolet CMP8A HUP?
194? Bedford QL
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  #4  
Old 20-02-21, 21:42
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Jonathan Moore Jonathan Moore is offline
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While*I was in the process*of deciding how to manufacture the rest of the components*it occurred to me that when one is concentrating on a target or having coffee, having to hold*the lever down until the gearbox internals*meshed, would be slightly inconvenient.*Therefore I*designed the gearbox internals*in such a way that once the lever is pushed forwards or backwards it locks in place,*leaving the operators hands free. *Inside the gearbox there is a keyed dog*that moves vertically on the main shaft, when*the lever is in the vertical position the*keyed*dog is in it's upper position and the turret can be rotated by hand but when the* lever is pushed forward/backwards the dog is lowered,*the keys can mesh with slots in*the large toothed gear and the turret is therefore connected to the hand wheel thus*being in fine mode.* Obviously trying to get everything*in exactly the right position for the keys and slots to mesh every time would be impossible, so to over come this*I decided to spring*load*the plate containing the keyed dog. If the lever is pushed forward or backward it*locks in position, the plate containing the keyed dog is lowered and being spring loaded, if the keys and slots do not line up,*the springs compress.*When the hand wheel is rotated and the *keys and slots line up, the pressure of the springs*force*the keys into the slots and from then on the turret is*rotated using the*hand wheel.

As clear as mud*but trying to work out how to word it was more difficult than actually making the damn thing, me thinks



Jon
Attached Images
File Type: jpg DSC06980.jpg (21.1 KB, 2 views)
File Type: jpg DSC06991.jpg (20.9 KB, 2 views)
__________________
1950 Land Rover series 1
1967 Land Rover series 2A LWB
1986 Land Rover series 3 SWB
1938 DKW SB200
1944 DKW NZ350-1
1967 Ural K750 sidecar outfit
1944 VW Kubelwagen KDF82
1942 Steyr 1500A
1944 Morris C8A
1943 Chevrolet CMP8A HUP?
194? Bedford QL
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  #5  
Old 28-02-21, 20:21
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Jonathan Moore Jonathan Moore is offline
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Location: mid wales britain
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Evening All,

Continuing with turret gearbox, the next item that I needed to make was the handwheel. Not quite as simple as around disc as it contains a remote trigger for the MG34. It would have been a casting but as I don't have that option, I fabricated it.
It started life as a flat piece of 10mm thick steel plate which I cut, turned and then added the relevant bosses.
Attached Images
File Type: jpg 13315518_10207592971916369_52524914812911240_n.jpg (92.9 KB, 122 views)
File Type: jpg 13315805_10207592976316479_4792714454801354046_n.jpg (96.3 KB, 122 views)
File Type: jpg DSC07012.JPG (11.5 KB, 121 views)
File Type: jpg DSC06994.JPG (15.1 KB, 121 views)
__________________
1950 Land Rover series 1
1967 Land Rover series 2A LWB
1986 Land Rover series 3 SWB
1938 DKW SB200
1944 DKW NZ350-1
1967 Ural K750 sidecar outfit
1944 VW Kubelwagen KDF82
1942 Steyr 1500A
1944 Morris C8A
1943 Chevrolet CMP8A HUP?
194? Bedford QL
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  #6  
Old 28-02-21, 20:26
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Jonathan Moore Jonathan Moore is offline
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Location: mid wales britain
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A quick grind with a burr and a shot blast made it look something like the original.
Then the wall of the bosses needed to be machine away so that the two are connected as when it is finished a pivoted arm fits in the channel and a slot for a drive key needed machining into the opposite side of the center boss .
The handle obviously contains the trigger mechanism, I made the outer housing from separate bits of 3mm plate welded together and then I ground the outer profile to shape.
Attached Images
File Type: jpg DSC07000.JPG (20.0 KB, 121 views)
File Type: jpg DSC07005.JPG (13.4 KB, 121 views)
File Type: jpg DSC07013.JPG (14.6 KB, 121 views)
File Type: jpg DSC06999.JPG (10.7 KB, 120 views)
__________________
1950 Land Rover series 1
1967 Land Rover series 2A LWB
1986 Land Rover series 3 SWB
1938 DKW SB200
1944 DKW NZ350-1
1967 Ural K750 sidecar outfit
1944 VW Kubelwagen KDF82
1942 Steyr 1500A
1944 Morris C8A
1943 Chevrolet CMP8A HUP?
194? Bedford QL
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  #7  
Old 28-02-21, 20:30
Jonathan Moore's Avatar
Jonathan Moore Jonathan Moore is offline
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Location: mid wales britain
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In the pictures I have just dropped a 6mm bolt in the the top of the handle to show how it operates. When the trigger is pulled it raises a rod which raises the pivoted arm held in the channel of the wheel. The other end of the arm, which is slotted into a rod that runs up the center of the gearbox shaft, is pushed down this in turn pulls and pushes a series of rods linked to the trigger on the MG.
And that's as far as I got today as I promised myself to spend the afternoon gardening.

Jon
Attached Images
File Type: jpg DSC06997.JPG (10.4 KB, 127 views)
File Type: jpg DSC06998.JPG (10.5 KB, 127 views)
File Type: jpg DSC07011.JPG (13.8 KB, 127 views)
File Type: jpg DSC07007.JPG (14.3 KB, 129 views)
__________________
1950 Land Rover series 1
1967 Land Rover series 2A LWB
1986 Land Rover series 3 SWB
1938 DKW SB200
1944 DKW NZ350-1
1967 Ural K750 sidecar outfit
1944 VW Kubelwagen KDF82
1942 Steyr 1500A
1944 Morris C8A
1943 Chevrolet CMP8A HUP?
194? Bedford QL
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