S.S. Death Star?

[PHArchivist]

Good luck! I have been staring at mine for over 2 years now. Its been a leap of faith making every cut. Have we determined the diameter and distance from the trench of the super laser?
Christian

That's my next step. The supplier is cutting the hole for the laser for me for an additional $37 (well worth it to me), so I need to figure it out. I've got good shots of the original, straight on which can be used as a starting point, but I'm not sure if the curvature alters any measurements taken off a flat image... Verta? Where are you?

By the way, Christian, what width did you go with for your equator? My domes will be 3/8 thick, hence an equator trench depth of 3/8, and the heith of the trench will be about the same 1/4" - 3/8".

 

[PHArchivist]

Mmmmmmm Chili!!!!

Can't wait to see this Rob!

Brad

Brad soon enough I'll have your *^$! over here drilling holes! (I'll supply the beer!).

 

[Lear60man]

Ill measure when i get back in country. The trench is a little thick as I can always trim down.

 

[PHArchivist]

Actually, I re-examioned the reference pics I have and it looks to be closer to 1/2 an inch, and notably taller than deep.

Also note the BIG black scratch running along it. Wonder how that happened.

 

[cking]

That will be where the proton torpedo impacted on the surface! :lol

 

[Flintlock]

That will be where the proton torpedo impacted on the surface! :lol

Naw... That's what's left of Jek Porkins and his poorly maintained X Wing (he dribbled a little too much twinkie cream into the ionizers).

 

[PHArchivist]

You guys are hilarious!

But are we talking about the same thing? There are the infamous extended scuff marks on the surface we've known about for awhile (and show a bit in my cropped image).

But the scratch I'm referring to is the larg black line running along the length of the equatorial trench. When viewing this in person I didn't really realize how significant it was.

Makes me wonder what got in there (inside the trench) to cause it...

 

[Jedifyfe]

Brad soon enough I'll have your *^$! over here drilling holes! (I'll supply the beer!).

Bring it on, Big Man!!! I would actually love to help out on this project! Do I need to bring my Dremel?

As for the beer... do you really think that would be a good idea?





Brad

 

[PHArchivist]

As for the beer... do you really think that would be a good idea?

Brad

Work first, then drink!

Domes will be here in a couple of weeks. I'll probably really start digging in in early November after the kids soccer season. I'll hold competitions - he who drills the most holes doesn't have to chip in for the pizza!

 

[Jedifyfe]

Work first, then drink!

Domes will be here in a couple of weeks. I'll probably really start digging in in early November after the kids soccer season. I'll hold competitions - he who drills the most holes doesn't have to chip in for the pizza!

Let me know. I'm ready for a challenge. It may be a good time to finally throw back a few.


Brad

 

[Junk Pilot]

Having drooled over Lars Death Star for ages my quest to find some domes ended today when I got a phone call from my partner who managed to find a number of tinited 18"-20" security camera domes and will only cost about $5.00ea.


Now comes the questions.
What is the scale/ratio of:
a) the diameter of the super laser compared to the diameter of the DS;
b) the top of the trench to the super laser; and
c) the height of the trench to the diameter of the DS?

Or is it a case of "your best guess" or "your guess is as good as mine"?

Cheers

 

[PHArchivist]

b) the top of the trench to the super laser; and

How funny - this is exactly what I've been working on the past day or so. My best estimation on the full-sized model is 1.5"

But here's the challenge...

Without being able to physically measure the atual model, I'm going off of one-dimensional photographs. I can't help but to think that specs taken off a one-dimensional image would not directly translate to a three-dimensional sphere.

 

[JPolacchi]

You know...I think Moe re-built the radar dish piece for the current owner of the Death Star...you should contact him.Maybe he can/will endulge you with demensions?

 

[Junk Pilot]

Yes. Moe did rebuild it. Basically I'm wanting to know if the DS diameter is 100% what is the percentage of the superlaser in relation to the DS diameter?

Hyperthetically speaking is the diameter of the superlaser 25% of the DS diameter?

Being able to determine the scale ratios in my original questions would then allow me a fixed scale ratio of working out the superlaser size regardless of what size domes I have.

 

[madrobot]

I started building my 1:1 scale Deathstar. Unfortunately with the price of gasoline, not to mention insurance, I've had to put that on the back burner too. Then, there's the getting all those parts into space...

All kidding aside, I love the fact that people are making these. It's what made Star Wars, Star Wars.

 

[Junk Pilot]

I got as far as buying a pack of screws for my 1:1 scale DS before costs blew out.
lol

 

[PHArchivist]

How funny - this is exactly what I've been working on the past day or so. My best estimation on the full-sized model is 1.5"

But here's the challenge...

Without being able to physically measure the atual model, I'm going off of one-dimensional photographs. I can't help but to think that specs taken off a one-dimensional image would not directly translate to a three-dimensional sphere.

Did bit more photo comparison...

I took a shot of my one-dimensional foam-core mock up and compared it to a straight-on frontal shot of the original, and the measurements I have pretty much match up to within a 1% difference, if any.

 

[PHArchivist]

On the 1:1 one-dimensional mock-up, the distance from the equator to the bottom of the super laser is 1.5 inches. The upper hemisphere is 16.5 inches, and the super laser is 9.25 inches across.

These numbers match 99% - 100% accurate to the photo of the original.

The only remaining question is, can a photo examination/extrapolation of a 3D object compared to a 1D object work?

 

[Junk Pilot]

On the 1:1 one-dimensional mock-up, the distance from the equator to the bottom of the super laser is 1.5 inches. The upper hemisphere is 16.5 inches, and the super laser is 9.25 inches across.

These numbers match 99% - 100% accurate to the photo of the original.

The only remaining question is, can a photo examination/extrapolation of a 3D object compared to a 1D object work?

1.5 inches, 16.5inches, 9.25 inches!!!!!!
I thought you people were civilised. Doesn't anybody use the metric system at all? lol

 

[mverta]

The only remaining question is, can a photo examination/extrapolation of a 3D object compared to a 1D object work?

The margin of error is proportional to the compensation (or lack thereof) for lens/proximity distortion. Spherical objects are the most difficult to nail down by far. Even having "nearly orthographic" references of R2's dome, shot with a 200 mm lens yielded many inaccuracies when actually compared with measured-on-the-surface-of-the-dome data, for example.

_Mike