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Panzer 2 turret


johann morris

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Evening All,

 

Thanks for the concern, I am ok, just needed a break and life has become so hectic the project had to take a back seat. There's not much progress to report but I am hoping that this year I will have more time.

First of all let me wish you all a happy and healthy new year, let's hope that this bloody Covid thing gets under control and we can get back to a normal life.

I have had the sprockets cut and they now need to be machined. All the metal for the sprocket mounting hubs

has been cut and the centers machined to suit the final drive, I just need to weld it all together, machine the outer diameter and drill the sprocket mounting holes.

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I have made and fitted drives and radio operators seat cushions.

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If we go back to my last post I was working on the drives vision optics. 

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I have now made the vision tubes, I don't know what the originals looked like but this is my version.

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It's a bit hard to get a picture looking through them but they do work. However at normal magnification you can see bugger all, I don't think that the originals 1.25X would make much difference.

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On the Tubes there is a little boss that locates in to a slot in main optics housing.

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When the unit is assembled, if you turn the knurled boss, the split pins only there as a temporary measure, the vision tubes move closer together or further apart to suit the driver. As you can see the unit hasn't be set up properly yet.

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And that's all there is for now.

 

Jon

 

 

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Hi Jon - Excellent and understood about taking a break. I've been following this project since you started and am amazed at your skills. I'm looking forward to videos of the finished project moving under it's own power.

Cheers,

Chris, in Victoria, BC.

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Evening All,

Truth to tell, I am glad to be back and making some progress, thanks for the support it is very much appreciated.

Onward's then.

The next job is to get the sprocket flanges welded together and machined and as I do not have a lathe big enough, the machining will have to be done on a milling machine. I have a rotary table but I don't want to damage it, so I needed a rotary device that wasn't going to cost the earth and as usual my mind started to look at Land Rover components. I decided on a stub axle and hub from a Disc 1, it would need modifying but it would do the job. 

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A few modifications and some adapter plates

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Rotation will be via my arm and a long 1/2" drive bar, a health and safety nightmare I know but I have used the method before and as long as a lot of caution is used, it works well. Bolt the whole assembly to a nice thick bit of plate, add some bolt down holes and all is ready. It also came in handy when I welded the plates together.

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I then turned the bottom flange so that it runs true with the top plate just to make positioning it on the main plate easier before welding.

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It's now all welded together ready for machining in the morning.

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Jon

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Evening All,

The machining of the sprocket flanges went well but I forgot to take pictures when they were on the machine and by the time I thought about it, I had tack welded the sprockets on.

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The sprockets should be and will be, bolted on to the flanges but first I have to machine a recess in both sides, so that the sprockets sit over the outside diameter of the flange. My cunning plan, is to drill the 60 lightening holes and 20 retaining holes in each sprocket  but rather than drilling the retaining holes as clearance holes drill and tap them. Then by bolting from the rear of the flange I can utilize the retaining holes to hold the sprocket to the flange, then machine the recess in one side of the sprocket flip it over and machine the recess in the opposite side. Well that's the plan.

 

Jon

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18 hours ago, johann morris said:

Evening All,

The machining of the sprocket flanges went well but I forgot to take pictures when they were on the machine and by the time I thought about it, I had tack welded the sprockets on.

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The sprockets should be and will be, bolted on to the flanges but first I have to machine a recess in both sides, so that the sprockets sit over the outside diameter of the flange. My cunning plan, is to drill the 60 lightening holes and 20 retaining holes in each sprocket  but rather than drilling the retaining holes as clearance holes drill and tap them. Then by bolting from the rear of the flange I can utilize the retaining holes to hold the sprocket to the flange, then machine the recess in one side of the sprocket flip it over and machine the recess in the opposite side. Well that's the plan.

 

Jon

sounds complicated and you lost me very quickly, but I know the result will be fab 👍

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  • 4 weeks later...

Evening All,

I haven't made that much progress over the past weeks as everything else seems to be getting in the way.

I have got to make three more sets of the items needed for the remaining observation ports, I wish that I had made all six sets in the beginning but I hadn't intended making a whole tank back then.

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So far I have made the splatter guards that fix to the inside of the hull.

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Of course the other thing that I have been doing is drilling flipping holes, I am even dreaming about the things. Next it's the fun job of machining the recesses.

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That's all for now.

 

Jon

 

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1 hour ago, johann morris said:

Of course the other thing that I have been doing is drilling flipping holes

Blimey O'riley that a lot of holes......

 

Other than that don't know what to say except we're looking forward to to seeing it completed, however long that may take, you've already done so much and to such a high quality.

 

Julian

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13 hours ago, eddy8men said:

there will be a day soon when the sun is shining and you're driving the panzer at a show somewhere and it will have been worth all the effort. 

Just to jump in on this excellent topic, how is the Covenanter progressing Rick ?

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Posted (edited)
On 3/6/2022 at 7:36 PM, eddy8men said:

there will be a day soon when the sun is shining and you're driving the panzer at a show somewhere and it will have been worth all the effort. 

I know Rick and then all the hard work will be forgotten and another project will be the center of my attention. By the way, thanks again for the phone call, it dragged me out of a hole and was very much appreciated.

Evening All,

All the holes have now been drilled so it was on to the machining of the recess in either side of the sprockets. To start with I counter bored the flange and then tapped a number of the holes so that I could bolt the sprocket in place rather than just relying on my tack welds.

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Again I used the modified Land Rover hub but by using a spring loaded stop I turned the whole assembly into a sort of ratchet. If you remember I am rotating the assembly by hand using a long bar, so if the cutter were to snatch, especially at the start of each cut,  it would try to rotate the sprocket at the speed of the cutter (500 rpm) in the opposite direction to the one that I am trying to turn it, taking my arm with it and ending in a big bang. As you can see from the pictures, the stop rests against each tooth of the sprocket in turn, stopping it rotating in the wrong direction and as the sprocket is rotated the stop moves accordingly.

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First side finished. 

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The tack welds now had to be ground out and the sprocket flipped over so that the recess now locates over the outside diameter of the flange and it is then bolted in place ready for the recess to be cut in the opposite side of the sprocket.

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And that's tomorrows job.

 

Jon

 

Edited by johann morris
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Evening All,

I managed to complete one sprocket and then, two cuts from finishing the second one, the cutter inserts gave up the ghost. I thought that i had plenty of spares but sods law said that I had plenty of every other type but not the ones that I was using, so now I will have to wait for replacements to arrive in the post....bugger.

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jon

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  • 4 weeks later...

Evening all,

 

Progress is a bit slow but it is progress.

I now have two completed sprockets so my next task was to make the sprocket flange look something like the real thing. The original has a nice curve on it where as mine is, well, rustic.

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I was going to make a sort of hub cap that bolted on but in the end I decided to roll a cone and weld it on  to the flange.

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And after a bit of welding

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Then of course there was quite a bit of grinding but I am quite happy with the end result.

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The next job is to make the cover to go over the hole in the middle.

 

That' all for now.

Jon

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