|
|
Post by markspoelstra on Sept 30, 2022 4:17:25 GMT -7
I would be willing to share my model I think, but it is not so easy to transfer.
It has a lot of hand made copper sliding contacts and a lot of glass fibers in it.
The light bulbs and wiring also needs a manual I think.
And I have no idea if there would be interest of course.
|
|
|
|
Post by scotttucker on Sept 30, 2022 9:07:24 GMT -7
I would be willing to share my model I think, but it is not so easy to transfer. It has a lot of hand made copper sliding contacts and a lot of glass fibers in it. The light bulbs and wiring also needs a manual I think. And I have no idea if there would be interest of course. Well I for one would be extremely interested and I think I can predict quite safely that others here would love for you to share and or post all about it including as many photos as you like- that looks absolutely amazing! |
|
|
|
Post by Ron Walker on Sept 30, 2022 11:35:53 GMT -7
Yes, yes, yes, we are all interested in any and all construction projects.
|
|
|
|
Post by markspoelstra on Oct 1, 2022 3:46:02 GMT -7
Oh, ok, but... The printing is one, but you also need to find/buy the right light bulbs, and make sliding contacts from copperplate. Very thin electric wires are needed, correct thickness glassfiber, etc etc. But let's start with a few pictures to get the idea then. ![]()    The projector is placed on elevator which can go up and down with an Android app, and the screen projects fulldome movies or realtime Planetarium stuff (Digitalsky) (but I don't see how I can post the (4Mb) video here... |
|
|
|
Post by scotttucker on Oct 1, 2022 9:35:02 GMT -7
This is fantastic - has Sir Gare seen this yet? I seem to recall him making a model audience too! A truly beautiful model - can't wait to see more detail. I like the profile picture - but which one is Mark?  |
|
|
|
Post by Ron Walker on Oct 1, 2022 10:47:52 GMT -7
Truly fantastic. What is the scale here? The people look real and the clothing does not have the usual stiffness that one finds when making smaller models. Can't wait for more details on how you accomplished this. Makes one wonder if one could incorporate small starballs such as those used in the "Discovery Kids" projector.  I will repost the review so everyone can see how it worked. |
|
|
|
Post by markspoelstra on Oct 1, 2022 11:50:32 GMT -7
|
|
|
|
Post by mrgare5050 on Oct 1, 2022 14:39:36 GMT -7
Scott asked: has Sir Gare seen this yet? I seem to recall him making a model audience too!
that was a much more simplistic model, thanks for remembering it sir duke! i didnt have people though, just semi-circular chairs. the 'dumbbell' projector was actually a painted baby rattle, so nothing like the ones these guys are making that actually work! Awesome!
|
|
|
|
Post by Ron Walker on Oct 1, 2022 16:00:49 GMT -7
Really interesting as to how lifelike it all looks. Great work. Do you have any pictures as you were putting the unit together? |
|
|
|
Post by markspoelstra on Oct 2, 2022 8:37:19 GMT -7
Sure, ...had to search a little, but I have some indeed. But I can make better ones now, because I am making the third projector at the moment. (second one was for a friend, and this one for a co-worker at the Planetarium) And these pictures are from "the first model", I changed quite a lot before the second one.    ![]() |
|
|
|
Post by markspoelstra on Oct 2, 2022 8:52:00 GMT -7
...and some more. Some wiring before connection and covering, starting with an elevator and beginning with the dome...    |
|
|
|
Post by Ron Walker on Oct 2, 2022 15:39:21 GMT -7
Please do document all of your steps including what you did for slip rings on your third rendition. I find this quite fascinating.
|
|
|
|
Post by markspoelstra on Oct 3, 2022 5:15:25 GMT -7
ok, but I am not printing the center yet. I just finished the pedestal. But attached 3 pictures on how it looks a little bit in the center:    |
|
|
|
Post by markspoelstra on Oct 3, 2022 7:57:21 GMT -7
First I made the projector on itself, without the pedestal. A battery pack was underneath the shelf of the Zeiss frame (the white thing on previous pictures) You could simply lift the shelf and remove the battery pack also, it was laying loose on 2 contacts. I still think it was quite nice... "where is the power coming from?" ;-) But I made a pedestal later on with spots in it. Now the power is from there. There is no switch or so, I don't like that. Just rotate the platform a little and the things are powered up. You can run it from batteries or from power adaptor. If you lift the projector... the bottom is staying connected by a magnet (in the middle) This is the inside of it:  |
|
|
|
Post by Ron Walker on Oct 3, 2022 10:54:34 GMT -7
Love the "switch". Did you make the copper contacts from thin copper plate and have you had any problem with the copper bending upon use?
|
|
