Doctor Who Stunt Props (Sonic Screwdrivers, TARDIS Keys, etc.)

LOOKS AWESOME!
If only it was metal...
There are already metal variations out there in the $300-$3,000 range, that's why I'm making them for 3d print plastic rather than metal, because they're way cheaper and more customizable. If you want metal, you should talk to someone that's designed their props for metal. These are specifically designed for 3d print purposes.
 
This might work better though, I'm trying to fit a tv b gone into a sonic and this looks promising
 
Re: Affordable Doctor Who Stunt Props (Sonic Screwdrivers, TARDIS Keys, etc.)

As an added point, karstarva, I just remembered your name from your Laser screwdriver build! I meant to ask you, how did you discover the correct dimensions for the prop? I've heard a number of things, one being that the prop is 5% bigger than the CO toy, the other that the CO toy is 5% smaller than the prop (which result in two different measurements); then I saw your build thread which shows it to be about 8 1/2" closed, which is well larger than the other two measurements. Any advice? This is the one prop I'm stuck deciding on the size!



I would like to point out that what you said in this post is a bit wrong

if the CO toy is 5% smaller than the prop, logic states that the prop is 5% bigger than the CO toy. therefore, they mean the same thing and would be just as big either way.
was that a typo?
 
Re: Affordable Doctor Who Stunt Props (Sonic Screwdrivers, TARDIS Keys, etc.)

I would like to point out that what you said in this post is a bit wrong

if the CO toy is 5% smaller than the prop, logic states that the prop is 5% bigger than the CO toy. therefore, they mean the same thing and would be just as big either way.
was that a typo?

Well no, 5% is not a fixed number, it's relative to an original value and will be different when calculated from different values. 5% of a smaller number will always be less than 5% of a larger number and therefore whatever the two values (in this case the size of the toy and prop) 5% of each of those values will not be the same.

Here's the math:

For simplicity, we'll pretend that the real prop is 100 of a given unit of measurement long.

In the case where the toy is 5% smaller than the prop, we would take five percent of 100 and subtract that from the 100:

.05 * 100 = 5
100 - 5 = 95

However, in the case where the prop is 5% larger than the toy, five percent of the 95 length added to the 95 length doesn't give us 100:

.05 * 95 = 4.75
95 + 4.75 = 99.75

So if the prop, being 100 units, is truly 5% larger than the toy (not the other way around), the length of the toy(t) would have to be:

.05 * t + t = 100
.05t = 100 - 1t
1.05t = 100
t = 95.23809524
 
Re: Affordable Doctor Who Stunt Props (Sonic Screwdrivers, TARDIS Keys, etc.)

Well no, 5% is not a fixed number, it's relative to an original value and will be different when calculated from different values. 5% of a smaller number will always be less than 5% of a larger number and therefore whatever the two values (in this case the size of the toy and prop) 5% of each of those values will not be the same.

Here's the math:

For simplicity, we'll pretend that the real prop is 100 of a given unit of measurement long.

In the case where the toy is 5% smaller than the prop, we would take five percent of 100 and subtract that from the 100:

.05 * 100 = 5
100 - 5 = 95

However, in the case where the prop is 5% larger than the toy, five percent of the 95 length added to the 95 length doesn't give us 100:

.05 * 95 = 4.75
95 + 4.75 = 99.75

So if the prop, being 100 units, is truly 5% larger than the toy (not the other way around), the length of the toy(t) would have to be:

.05 * t + t = 100
.05t = 100 - 1t
1.05t = 100
t = 95.23809524


:p
I was being completely stupid when i wrote that
now nobody else has to be such an idiot like I was
 
i don't know if it helps, but if you can send me a copy of the original emitters I can make a mold to cast the parts in clear acrylic for use in these. I need to get a few of these so, it'll be cool to make the emitters transparent
 
DSC00144.JPG

This is an example of a replica emitter drip tip (for electronic cigarettes) that I made to replace the stock emitter in a sonic screwdriver ecig I make. It's incredibly easy to make solid with no hole through the center for this purpose.
 
I love how human ingenuity always manages to evolve with technology. Love what you are doing with the 3d-printer.
 
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