Brachacki Original TARDIS Photogrammetry

[Angelus Lupus]

That is amazing! And it's interesting how almost all of the dimensions work out to common imperial measurements (halves, quarters and eighths, etc). Bravo!

[Scarfwearer]

I've taken the liberty of updating Lespaceplie's topic (see http://tardisbuilders.com/index.php?topic=644.msg106576#msg106576), I wonder therefore if you might care to update your table of the available plans?

Already sorted.

[dw_1200]

Thank you all for the kind words I'm always glad to help.

I just noticed that we forgot to include the base width. It is 55"



And, as far as I remember, rassilonsrod asked for dims for the construction of the sign boxes. Here they are:

[lym]

I'd just like to ask, how do you go about getting such good wireframe perspective matches? Generally it takes me around half an hour to get an overlay that only barely matches. since I have elements of my own models as different objects in Blender (so I can use mirror modifiers, etc.), I'll usually have to copy and paste them into a new document to merge them into one object that can be viewed in edit mode as the wire overlay. This means that any measurement changes I make to the merged object have to be manually carried over to the original file.

[dw_1200]

I'd just like to ask, how do you go about getting such good wireframe perspective matches? Generally it takes me around half an hour to get an overlay that only barely matches. since I have elements of my own models as different objects in Blender (so I can use mirror modifiers, etc.), I'll usually have to copy and paste them into a new document to merge them into one object that can be viewed in edit mode as the wire overlay. This means that any measurement changes I make to the merged object have to be manually carried over to the original file.

Answered in PM (instead of going off-topic here)

[tony farrell]

Thank you all for the kind words I'm always glad to help.

I just noticed that we forgot to include the base width. It is 55".

I hadn't forgotten - I just haven't had time to draw the overhead view of the box! 

T

[dw_1200]

I hadn't forgotten - I just haven't had time to draw the overhead view of the box! 

Oh, oops :0  Guess, I was a little rushed

[lespaceplie]

Tho things that are maybe a little iffy are the dims of the corner post quadrants and the width of the center panels. 7/8 inch is not a typically stocked standard size for quarter round molding (at least not common these days). I doubt the builders would've gone the extra mile to have it milled, and it's unlikely a router was used. 4-1/4 is not standard lumber width, but 4-1/2 (dressed) is. If these were constructed by the assumed method of laminating timbers together and adding the quadrant moldings then the 3/4 inch quadrants and 4-1/2 inch faces are more probable.

[timewomble]

Perhaps a moulding plane was used?

[tony farrell]

Well, for a long time I was resistant to Crispin's suggestion that the quadrants were 0.875" and Slava and I actually tried the plans and - consequently - the wire frames with 0.75 inch quadrants. However, no matter how hard we tried with 0.75 inch quadrants, we couldn't get a match to the photos.

Now, I freely admit that the application of Artex/weathering obscures precisely where the corner-posts' flat faces end and the quadrants begin and obviously when the box was first constructed the timbers would have been sanded-down to provide a 'key' for the primer, under and top coats of paint.

So, taking the sanding, painting, artexing and weathering of the box into account, I'm quite prepared to admit that I was wrong and that - with regard to the finished dimensions of the quadrants - Crispin was correct to state 0.875 inches. At the end of the day, the difference between 0.875" and 0.75" is only 0.125" and this can easily be achieved with a bit of sand papering!

Crispin was also correct to suggest that the central divider on the doors and sides actually had  slightly tapering sides. Where I differed (and still differ) with Crispin is when he stated that the box wasn't square when first built. As the 'wire frame' overlays show, it was actually - as near as dammit - 50 inches square.

Now, there are some slight asymmetries in the box - the left-hand front post cap appears to have been mounted slightly crookedly and in the side view of the Tardis from "The Chase", the lamp housing appears to be off-centre (but the lamp housing was fully detachable anyway).

So, you have to ask, how many of these 'quirks' can you sensibly incorporate into the plans and wire frames before they become overly complicated and therefore impossible to follow.

It was at my suggestion that Slava overlaid the wire frames on to as many HD photos as he did. It was by doing this that we hoped to prove the fundamental accuracy of the revised plans. I think that I'm prepared to 'stick my head on the block' and say that these are now the most accurate ones available.  

T

[Scarfwearer]

I think I agreed in a post a while back that the box had a square cross section - I realised I had got that one wrong! Slava's revelation that the roof was not on straight in the DIOE roof shot may have contributed to my earlier misunderstanding. That was hard to see without the model.

Standard wood sizes seem to differ between the US and UK, and the availability may have changed in the last 50 years also. I changed my 3/4" mouldings for 7/8" during my build because the 3/4" didn't look right. I think 7/8" is sold over here as 22mm and is not hard to find. It's the larger ones still I've found difficult to obtain locally.

Planing normally removes about 1/8" on each face, so a nominal 4" will be 3.75" and 5" will be 4.75". The nearest larger size I can buy these days is 119mm, which is about 4 11/16". Probably in 1963 things were a little different so I've not worried too much about what standard stock sizes were then.
Although there are common sizes for wood, you do sometimes find odd sizes that exist for specialised reasons, and it's possible that if 4.25 wasn't standard that they just used a readily available special-purpose size.
These days most places have plank widths in multiple of (now metric) inches. Possibly at that time some places also stocked in a few increments of 1/2" for the narrower planks, for which 4.25" would be natural after planing.
Or maybe they milled it on a table saw. After all: the rails were 3". You can't buy planed wood that width now in the big box stores as far as I know, and I wonder if you could then?

[lespaceplie]

Prepping dressed boards for paint doesn't require much sanding. What is taken away would pretty much be added back by the glue and paint, though it also varies by species. The Artex will add thickness here and there, but it will be thinnest at the corners, which won't significantly alter the dims at the resolution we're working with.

Having said that, there is one lumber path that would produce the 4.25 x 1.125 boards that would be necessary to support the suggested dims. The box could have been made of teak in which case the lumber would have been sourced from cabinet maker stock where that esoteric size is indeed a standard. The real boxes have teak doors, after all.

The quadrants probably grew in radius due to the Artex but were probably still 3/4" underneath. The prop in pilot form might be worth a glance.

[ionsith]

This is amazing! I really want to learn how to do photogrammetry. Can I just ask, by how much is the Police Public Call Box sinage inset? 

[danielc]

Excellent work Slava and Tony

[tony farrell]

This is amazing! I really want to learn how to do photogrammetry. Can I just ask, by how much is the Police Public Call Box sinage inset?

Glad you like it Ian - Slava and I have spent well over a month on this so, it's nice to be appreciated.

To answer your question, the diagrams are drawn at 24 pixels per inch and each 'step' around the sign is six pixels which equates to a quarter of an inch with the signage therefore being set back by a total of half an inch.

As regards standard timber sizes, well, this is somewhat of a 'red herring':

The Tardis was a specially made prop made by Shawcraft who were a highly skilled specialist firm of engineers who not only constructed parts for aeroplanes but also made things like the highly detailed and highly accurate 35 feet long model of the Titanic for the film "A Night to Remember". With the experience, skills and knowledge available to them, surely it wasn't beyond their wit to plane timber to whatever sizes were required by the design!  

T