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Scratch built SS 2001 Moon Bus

joeb

Alphans
I'm still working on the landing gear, slowly, ever so slowly. These pics are of the center piston boot. I did the turning last July and made the mold last August. The castings were made over the last few weeks. I was originally going to make these parts from soft black urethane but I opted for the rigid resin I've been using all along. The soft urethane and dye isn't cheap and the left over would have gone to waste before I would need it again. I also decided not to spring load the landing gear. It would be neat but I don't need the aggravation that goes with it. Static landing gear are going to be hard enough to make.

Joe
 

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joeb

Alphans
I'm sorry it's taken me a few days to get back to you richardlamer. I use Smooth On silicone, OOMOO and 305 resin. I like these because they have a longer pot life which gives me plenty of time to get the molds into the pressure tank. The rubber seems flexible enough for my needs. I've not experienced any tearing even from molds with slight undercuts, but I haven't poured most of them for this model more than a dozen times. The molds for my Eagle still look viable and they are years old and I used Micro Mark products which looked to me to be the same stuff. I hope this helps.

Joe
 

joeb

Alphans
Richard, I will answer this asap. I've got pics but it's getting late for me and I don't have time to write a proper reply.

Joe
 

joeb

Alphans
Here are pictures of the rest of the center piston of the landing gear being turned. This is the second attempt, the first wasn't thought out too well and was unusable. But it served well as a learning experience for the second. The “boot” will fit over the long cylinder section. I was going to try to make three identical ones just to see if I could but because of the snafu, I didn’t have enough acrylic rod left. The mold came out well however and I got good parts on the two pours so far. That was a relief because some molds have been giving me a lot of trouble lately.

Joe
 

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joeb

Alphans
Here are some shots of the mold and castings of the landing gear plate. The castings had a few bubbles on the side that was up in the mold. Even though I had a lot of vents and gently shook and tapped the mold to free up any trapped air it didn't all escape. Oh well a little spot putty and the parts will be fine.

Joe
 

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joeb

Alphans
I wanted to post these pictures sooner but I was having problems with “Computer”. The old one died a few weeks ago and my wife, the computer geek that she is thank goodness, got the new one up and running this week end. I'm still trying to find all of my backed up files but at least I can now up load and send out new photos.

I've been making great progress these last couple of weeks manly because I've been doing a little building every day ofter work which frees up the week end for major progress to be made. I decided to put the landing gear back on the shelf because it was really frustrating me. I screwed up two parts that I now need new castings of so I thought it best to but it aside for a while. I went back to work on the rear bulkhead and finally got it attached to the hull. I had to remake the door bead detail because the first one I made wasn't long enough. It wasn't a big deal to cut a lengthen the buck and vac form a new one. Getting the hole for it centered in the bulkhead proved to be a little time consuming. There was a lot of rerouting and sanding to get it right.

Joe
 

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joeb

Alphans
Once again, too many pictures for a single post.
 

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joeb

Alphans
When I finished the back I went right into the side RCS pods. These went well and surprisingly fast considering my normal pace. The hardest part proved to be getting the compound angle of the bottom section right. The only thing left to do is wrap the last piece of plastic over them and make and install the thrusters but I'm going wait on that and go back to work of the front of the hull. I have to make more molds for that area and I want to use up the last of my RTV before it goes bad.

Joe
 

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joeb

Alphans
Here are the rest along with a screen grab for comparison.
 

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I'm new here and just read through this whole thread. Fantastic work and my favorite subject matter! Looking forward to more of your progress updates, particularly how you are going to do the window frames and angled struts separating them. I'm currently working on modding the 'lowly' Mobeius/Aurora Moonbus which is about one-third studio scale, so your project is good reference material for me. I'm about to scratchbuild window inserts too since the kit's version is totally wrong. - Can you tell me your window assembly inner dimensions and angles so I can scale it down? - Anyway please post more progress photos when you can. Can't wait to see your finished Moonbus!
 

joeb

Alphans
Thanks for your comments Steve. I'm afraid that there won't be much progress any time soon however because I've put the Moon Bus on hold for a while. The whole nose section was giving me no end of trouble as well as the landing gear which did help the fact that I was generally losing interest in the model anyway. I promised my self early on in the build that I wouldn't do this but I had to stop and move on to other things. I will get back to it because I have too much invested into it not to. I don't have the angled struts for the windows figured out yet but I may be able to find the drawing for the window frames. I lost a lot of drawings in a recent computer crash but I'll check.

Joe
 

joeb

Alphans
Hi everyone, I know it's been a very long time since the last post but I'm back working on this again. The problems I encountered with the landing gear that pushed me into stopping work have been resolved and much needed progress has been made. One landing leg assembly is finished for the most part and the other two are being caught up. I am very happy with the work so far and am excited about continuing.

Joeb
 

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Captain Sci-Fi

Commander
Staff member
Hi everyone, I know it's been a very long time since the last post but I'm back working on this again. The problems I encountered with the landing gear that pushed me into stopping work have been resolved and much needed progress has been made. One landing leg assembly is finished for the most part and the other two are being caught up. I am very happy with the work so far and am excited about continuing.

Joeb

Really glad to see you back Joe.

The engineering in the model is amazing really looking forward to seeing your latest progress.
 

badsimmonds

Alphans
This is fabulous work on one of my favourite ships. The amount of work so far is staggering.
Looking forward to further updates.
 
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joeb

Alphans
Thanks a lot guys. I'm really happy to be back here with this. As you can imagine the hull took up a lot of space in my shop and was a constant reminder that I had to get back to work on it. It's a relief though to find out parts that were made so long ago are still good.

Joeb
 
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