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Police Pillar Plans

Started by starcross, Feb 13, 2012, 12:55 am

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starcross

Apr 15, 2020, 02:41 am #15 Last Edit: Apr 15, 2020, 03:25 am by starcross
Quote from: starcross on Mar 12, 2017, 04:54 am
DRG 61536, Showing Details for the Roof, First Aid Door, Police Door, and the Electrical door.
DRG 61536.jpg


My latest 3D part is the Roof of the PA1 Pillar. This was a nightmare to model. I eventually went to Reddit to get advice on how to do it because nothing I was doing was working. I think I am legitimately at over a dozen attempts. A nice user on Reddit walked me though the commands and process, and then It was just a few more attempts to get the model made and finished.

The sad thing is I thought it was a done deal, everything looked good, it was perfect. Then I added it to the rest of the assembly and it turned out I made it 1" too large. so I had to redo the entire thing and because the model couldn't be fixed. The incorrect measurement was the base body, so even with parametrics the base body can't be altered. However at this point I was an expert at the steps required, so finish it I did at the correct size.

I've got a Red/Orange paint scheme on it to show the shapes that make it a bit better.

So on Drawing 61536, Detail 5 creates the Roof.

Roof - Mirror of Blueprint.JPG

Roof - Top View.JPG

Roof - Bottom View.JPG

Roof - full Assembly.JPG

4539583534_bfcd3cb8fe.jpg

dr hue

Great stuff.

What 3D prog do you use and what renderer ?

Where was the bottom photo taken ?



starcross

Quote from: dr hue on Apr 15, 2020, 09:54 am
What 3D prog do you use and what renderer ?


This was done in Autodesk Inventor 2015. These are just screenshots of the native program, I rarely take the time to do proper renders.

Quote from: dr hue on Apr 15, 2020, 09:54 am
Where was the bottom photo taken ?


The Bottom photo is one I took in 2010 at the Avoncroft museum in Bromesgrove UK. Its a great place, they have a whole telephone exchange set up so all the phones talk to each other inside the Telecommunications collection. so you can walk into every version of Telephone box and at least four police boxes. Well A regional Wooden Box, a Glasgow Police box, a PA3 Post, and a PA1 Pillar.  Ther are all sorts of interesting archetecture preserved there as well. Though I did spend the most time at the Police Box stuff.

They were really nicem, opening thigns up for me to see inside, even got me a ladder so I could take photos and measurements from the top of the glasgow police box. I really want to visit again someday.

Take a google tour!

starcross

I've been investigating the Jack-in unit for the Speakerphone panels and the PA1 Pillars this weekend. I've come across the Drawing that shows the internal components, but its only a General Arrangement. Unfortunately it doesn't give many fabrication details.

Still the plan is to reverse engineer this stuff form photos and this drawing, and maybe I'll end up with a 3D representation to add to this Police pillar Project.

This is Drawing CD 479 from 1947 showingthe Jack-in Unit.
Pillar PA No 1 - CD 479 - Loud Speaker Unit.jpg

There is a lot of details that goes into making these internal parts. I've done some of the research previously when I got my Speakerphoen panel years ago.

Quote from: starcross on Dec 07, 2013, 08:36 pm
There are two parts of the Jack-in unit that are required.
1) The Holding bracket
2) The Electronics plate

The holding bracket is fairly straight forward, it screws into the base Bracket and has a slider for the Electronics plate. It has a nice electrical connection box that has blades which cuts the connections to the Electronics plate when it slides out to be serviced.

This is an example of the Holding Bracket in the Glasgow Wilson Street Box in 2010.
11244135823_33de99dd6a.jpg
11244147913_1ca34bb958.jpg

This is a clearer set of photos from the PA1 Pillar in Avoncroft from Rodney.
11244106524_0078e662a1.jpg
11244113724_ff368ec0a9.jpg

Sadly Rodney didn't take any measurements for either plate or bracket when the museum staff gave him access to the unit. He did give me the height of the phone plate though.

Still we can see that the basic shape is the same no matter if it is for the Pillar or a Box. The pillar has the same mounting posts cast into it as the Base Bracket does on the Panel. Its safe to say that the Electronics Plate is likely the same shape as the Avoncroft Unit, likely because it was for the triangular casting on the Pillar.

The Electronics Plate is much more complicated, I plan to cover it more in depth in the PA1 Pillar Plans thread. However looking down at the plate we can see the basic shape.

11244110034_4d3a877a3f_z.jpg

The phone plate is what you would see through the cover, everything else is hidden away. The phone plate is a separate piece that is screwed to the electronics plate. Likely the phone plate was painted black while the cover is painted that Light Green color industrial things tended to get painted. You can see the contrast in the photo of the left side of the cover.

11257458723_a04f644ef5_z.jpg


starcross

May 04, 2020, 09:19 pm #19 Last Edit: May 04, 2020, 09:24 pm by starcross
This weeks research was for the telephone handset. I managed to locate the correct drawings, though how One actually turns them into 3D objects is anyone's guess because they are complicated!

Quote from: starcross on Dec 07, 2013, 08:36 pm
11257458723_a04f644ef5_z.jpg


The Following four drawings make the Handset details, but as you can see this thing is not an easy shape to create.
It'll be interesting to say the least.

Telephone No 244 - Handset - 9509-1 Rev E - Handset GA.jpg

Telephone No 244 - Handset - SBO 2 Rev K - Handset Body.jpg

Telephone No 244 - Handset - 62911-1s2 Rev B - Handset Ear.jpg

Telephone No 244 - Handset - 62626 Rev C - Handset Mouth.jpg