|
|
Post by scotttucker on Aug 19, 2022 10:41:44 GMT -7
slow progress is still progress  |
|
|
|
Post by Ron Walker on Aug 19, 2022 11:01:28 GMT -7
That is very nice. However I will point out that the Sun projector is extending out of the cage and will hit the struts and some of the Moon gears appear to be to far out of the cage. Otherwise, beautiful.
|
|
|
|
Post by scotttucker on Aug 20, 2022 0:24:59 GMT -7
Thanks Ron - I move the individual components around to work on them. It is often easier not to have them inclined at 23 ish degrees. They are all printed individually so it does not really matter whether they are in the right position on screen. At the end, I will try to line it all up on screen properly so it looks right. Some components are split in half so that the printer copes with them.
|
|
|
|
Post by scotttucker on Sept 27, 2022 12:21:47 GMT -7
So after about 5 months the model is not quite finished but is at a reasonable state to share - photos and a link the model files will follow below. It is not perfect- I have not finished the meridian projector globes that sit on the frame and I am noticing ever more imperfections that should have been a little better. Please remember this is my first real foray into 3D modelling. First pictures are of the build - most of the photos are in black and white because they look better and because so many of the source photos that I have been staring at for weeks are black and white it just feels right.  half made:  |
|
|
|
Post by scotttucker on Sept 27, 2022 12:25:04 GMT -7
|
|
|
|
Post by scotttucker on Sept 27, 2022 12:27:53 GMT -7
I could not resist putting some stars in the background (from a Homestar)  for scale (not sure why I look so worried in this photo)  |
|
|
|
Post by scotttucker on Sept 27, 2022 12:44:09 GMT -7
So there are about 60 components to print - (and you need to print more than one copy of some components). If printed at the intended size it will need 2x 1kg reels of PLA (you could print it smaller). The components are less than 20cm each so they fit on a pretty standard 3D printer. You will need glue and a bit of patience to assemble it. I intend this to be freely available to lovers of planetariums - it was created on the free hobbyist version of Fusion 360 and therefore is free- It is shared under the Creative Commons License: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) please see creativecommons.org/licenses/by-nc/4.0/The files can be downloaded from drive.google.com/drive/folders/1PYoK0nKGHHkjHU6sWxd0uPNrcwf9C3rX?usp=sharing. I might put it on Thingiverse later but would rather people visit this forum! Ron - would you mind letting me know if this link does not work. If anyone out there makes one of these (or an improved version) please post about it on this forum. Enjoy! |
|
|
|
Post by mrgare5050 on Sept 28, 2022 3:45:27 GMT -7
Awesome and highly original application of home planetaria Duke! No fair being better looking than umm most of us??
|
|
|
|
Post by Ron Walker on Sept 28, 2022 12:10:28 GMT -7
So there are about 60 components to print - (and you need to print more than one copy of some components). If printed at the intended size it will need 2x 1kg reels of PLA (you could print it smaller). The components are less than 20cm each so they fit on a pretty standard 3D printer. You will need glue and a bit of patience to assemble it. I intend this to be freely available to lovers of planetariums - it was created on the free hobbyist version of Fusion 360 and therefore is free- It is shared under the Creative Commons License: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) please see creativecommons.org/licenses/by-nc/4.0/The files can be downloaded from drive.google.com/drive/folders/1PYoK0nKGHHkjHU6sWxd0uPNrcwf9C3rX?usp=sharing. I might put it on Thingiverse later but would rather people visit this forum! Ron - would you mind letting me know if this link does not work. If anyone out there makes one of these (or an improved version) please post about it on this forum. Enjoy! This is most SPECTACULAR!!!!!!!!!! I just downloaded the files (so that link works) and will order the proper filament and try and start this most amazing build. My son in law (the 3D artist here) is with his wife (my daughter) and some friends now at Disney (Hurricane) World and will be delayed but should be back by the end of next week. I will make mention of this in my December "Planetarian" column and perhaps generate some interest in the "pro" crowd. I would like to use the picture of you with your model for publication there. As I build this I will keep a running dialog right here. Again, congratulations on a job extremely well done!!! |
|
|
|
Post by Ron Walker on Sept 28, 2022 12:25:27 GMT -7
Looking over the list I'm wondering what needs to be duplicated. About all I can find is the main star ball would need two copies, one for the north and one for the south.
|
|
|
|
Post by scotttucker on Sept 28, 2022 13:22:46 GMT -7
Thank you Ron for your kind words - I will pop some pictures on facebook tomorrow and try to direct people here to the forum too.
As for duplication, you need 5 dual projectors, lots of planetcogs and mooncogs, 5 annual motors, 2 constellation spheres, 2 equator/meridian spheres, 2 milky ways - and all the lattice work needs doubling up. I will try to do a couple of notes and close ups - although it is fairly easy just to look at a photo and put it together.
You are welcome to use any of the pictures I post here and I am really pleased at least one other person wants to build one.
+it is great to reach the "Spitz Junior" milestone!
|
|
|
|
Post by Ron Walker on Sept 28, 2022 18:46:31 GMT -7
I can't see why anyone interested in planetariums would not want to build one. I look forward to it. Gee, I wonder if it can be motorized....
Keep posting and you will reach more milestones.
|
|
|
|
Post by scotttucker on Sept 30, 2022 0:05:01 GMT -7
I can't see why anyone interested in planetariums would not want to build one. I look forward to it. Gee, I wonder if it can be motorized.... Keep posting and you will reach more milestones. I am sure with a bit of redesign someone could put a motor in it + there is a lot of room inside the star globes - in fact, they are not that far off the size of a Homestar - perhaps someone brave could transplant the innards of a homestar into one and maybe use the bulb holder indent on the starsphere to disguise the lens! Hope your family are safe and well in Florida - I had not really picked up on the hurricane reference until it became headlines over here - the weather in the US has to be really bad to make the news over here. |
|
|
|
Post by scotttucker on Sept 30, 2022 0:37:40 GMT -7
For anyone building one a few hopefully notes which might help you decide whether to just build it as is or perhaps make some modifications:
1. The model is about 1/5th scale
2. My forethought did not quite stretch to adding in locating lugs to fit some of the components together in exactly the right place - not really a problem but you could add some in - if it looks right it is right!
3. The north and south boxes need to have a hole drilled in them to fit onto the lug on the circular slip rings - I modelled a hole in one of them but put it in the middle it needs to be further to one edge otherwise the annual motors collide with the polar motor (this probably makes more sense when it is being assembled). Perhaps I will get around to amending the file.
4. My north and south boxes are glued to the slip rings. It would be a nicer model if they are left free to rotate - the basic files will need a little modification so that they can rotate without falling off when they are upside down.
5.The lattice works are a little bit thicker than scale in order to support the weight of the projector
6. The big lattice ring is not to scale - I reduced it slightly so it would fit on the plate of my 3d printer
7. When I glued mine together I fixed the lattice supports that meet into the centre too high up the main supports - the effect is that they need a little support box to sit on.
8. I realise the dual projectors for the planets are not quite big enough - perhaps scale them up a little when you print them.
9. The little bases for the constellation spheres and equator projector spheres are hard to glue to the spheres (there is not much contact surface area). I drilled a small locating hole to make them stronger.
|
|
|
|
Post by markspoelstra on Sept 30, 2022 2:30:13 GMT -7
Hello,
I also did some printing, but on a smaller scale 1:13.5 (Zeiss IV)
It is a very nice object to have when it is dark in the room.
The third edition is still printing :-)
Very nice work you're are doing!
|
|
