Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > Work Bench > Projects
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 01-23-2021, 01:52 PM
mikeyd's Avatar
mikeyd mikeyd is offline
CG to close to CP
 
Join Date: Nov 2006
Location: OKC
Posts: 215
Default

A few years back, I finally finished mine, I had started building back in the 70's. But then swapped it for an unfinished kit of a friend of mine. Gave him mine, on a stand when he was diagnosed with terminal cancer, for all I know his family buried him with it, as I do not know what became of it after that. So I have been getting parts to complete his old one, but I did opt for a 3d printed escape tower assy, and the Semroc laser cut fins.
Reply With Quote
  #12  
Old 01-23-2021, 07:13 PM
dlazarus6660's Avatar
dlazarus6660 dlazarus6660 is offline
Master Modeler
 
Join Date: Oct 2009
Location: Southern N.H.
Posts: 3,880
Default

Quote:
Originally Posted by PaulK
Here's the capsule shrouds after clear coat. The yellowing is worse than the photo shows. I tried making a copy, but my Canon all-in-one didn't reproduce the detail. Despite the yellowing, the printing is very good on this, the corrugations and bolts/rivets are quite nice on the large shroud, considering it's small size. I'd be interested to know what printing process was originally used for these. Wouldn't have been enough volume for Web Offset or Gravure, and Flexo often doesn't reproduce fine detail very well.



IBM?

Back in the day, I think they were the only document printer available.

BTW, do you know the story of the IBM printer in the USSR?
__________________
If it flies, I can crash it!
Reply With Quote
  #13  
Old 01-23-2021, 08:05 PM
ghrocketman's Avatar
ghrocketman ghrocketman is online now
President, MAYHEM AGITATORS, Inc.
 
Join Date: Jul 2005
Location: Michigan
Posts: 11,337
Default

I know the story of the IBM printers in the USSR.
A buddy's father worked for IBM when that went on.
__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL
, if you have to ask what is "NORMAL" , you probably aren't
!
Reply With Quote
  #14  
Old 01-24-2021, 09:52 AM
PaulK's Avatar
PaulK PaulK is offline
BAR
 
Join Date: Nov 2005
Location: WI
Posts: 1,447
Default

Thanks for pointing out the scan here - I'm going to try to use the originals, well, because they're originals. Nice to have a backup, though.

Spent yesterday working on the tower. The tower dowel section, WD-41 sure is a weird part, I wonder how it was made? Routed? Pressed? Cutting out the dowels was easy enough with a sharp Excel #11 blade. Sanding, not so much. I sanded all 5 dowels using the twirl method show in the instructions, with 320 grit, took quite a while. Despite trying to handle the pieces very gently, most of them broke while sanding. Fortunately, it seemed like there was extra.

Once they were sanded, the thick and thin ones didn't seem a whole lot different in size, but I think I got them sorted out.
Attached Thumbnails
Click image for larger version

Name:  Redstone-K41-Build-10.jpeg
Views: 27
Size:  1.10 MB  Click image for larger version

Name:  Redstone-K41-Build-12.jpeg
Views: 19
Size:  1.15 MB  
__________________
Paul
If we weren't all crazy, we would go insane - Jimmy Buffett
NAR #87246 www.wooshrocketry.org
Reply With Quote
  #15  
Old 01-24-2021, 09:58 AM
PaulK's Avatar
PaulK PaulK is offline
BAR
 
Join Date: Nov 2005
Location: WI
Posts: 1,447
Default

First part of the tower is the base, made from 2 card stock rings, and 6 tiny dowel pieces. Sanding the bevel in the pieces was the hard part. A fine-point tweezers helped glue the pieces onto the base. Sure needed my Donegan Opti-Visor to put it together. The problem, then, is that tiny imperfections are easy to see. Well, they should be covered up by the glue joints and paint in the end.
Attached Thumbnails
Click image for larger version

Name:  Redstone-K41-Build-13.jpg
Views: 17
Size:  890.5 KB  Click image for larger version

Name:  Redstone-K41-Build-14.jpg
Views: 19
Size:  431.4 KB  
__________________
Paul
If we weren't all crazy, we would go insane - Jimmy Buffett
NAR #87246 www.wooshrocketry.org
Reply With Quote
  #16  
Old 01-24-2021, 10:07 AM
PaulK's Avatar
PaulK PaulK is offline
BAR
 
Join Date: Nov 2005
Location: WI
Posts: 1,447
Default

Next was cutting the 18 pieces for the 3 tower sides. I cut a few extra in case I dropped or broke one during assembly. Put waxed paper over the instructions, and built one side at a time, letting each one dry, then touching up the joints with a little more wood glue.

When I went to put the 3 sides together this morning, they didn't quite fit, so had to break & re-glue a couple bottom pieces. Couldn't figure out a good way to glue all 3 sides together, so I glued 2 together and held them between my fingers for 15 minutes to let the glue set enough. Fortunately had a hot cup of coffee from fresh ground dark roast to drink while holding. Once the glue was set, I layed it flat on wax paper, and glued the 3rd side.

It's not perfectly symmetrical, once dry it may need some adjusting to fit onto the base.
Attached Thumbnails
Click image for larger version

Name:  Redstone-K41-Build-15.jpg
Views: 37
Size:  904.9 KB  
__________________
Paul
If we weren't all crazy, we would go insane - Jimmy Buffett
NAR #87246 www.wooshrocketry.org
Reply With Quote
  #17  
Old 01-25-2021, 07:17 AM
PaulK's Avatar
PaulK PaulK is offline
BAR
 
Join Date: Nov 2005
Location: WI
Posts: 1,447
Default

Quote:
Originally Posted by mikeyd
A few years back, I finally finished mine, I had started building back in the 70's. But then swapped it for an unfinished kit of a friend of mine. Gave him mine, on a stand when he was diagnosed with terminal cancer, for all I know his family buried him with it, as I do not know what became of it after that. So I have been getting parts to complete his old one, but I did opt for a 3d printed escape tower assy, and the Semroc laser cut fins.
Skipping the dowel escape tower build misses half the fun

BTW, I found this page on Chris Michielssen's blog: http://modelrocketbuilding.blogspot...ver-part-a.html, his opinion is WD-41 was heat pressed from mahogany. Seems plausible, the stuff isn't as hard as the part name would suggest. Pretty cool in any case, Mahogany wood in a model rocket!

Was the K-41 the only Skill Level 5 kit released in a bag during the Skill Level packaging years? That would make it the only red "Skill-Level hang-tag" kit ever.
__________________
Paul
If we weren't all crazy, we would go insane - Jimmy Buffett
NAR #87246 www.wooshrocketry.org
Reply With Quote
  #18  
Old 01-25-2021, 08:28 AM
ghrocketman's Avatar
ghrocketman ghrocketman is online now
President, MAYHEM AGITATORS, Inc.
 
Join Date: Jul 2005
Location: Michigan
Posts: 11,337
Default

The K-41 Mercury Redstone is the only red skill level 5 packaged kit.
The Mars Lander was originally bagged, but never in skill level packaging.
__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL
, if you have to ask what is "NORMAL" , you probably aren't
!
Reply With Quote
  #19  
Old 01-25-2021, 03:54 PM
mikeyd's Avatar
mikeyd mikeyd is offline
CG to close to CP
 
Join Date: Nov 2006
Location: OKC
Posts: 215
Default

Quote:
Originally Posted by PaulK
Skipping the dowel escape tower build misses half the fun

I built it on the one I completed before, just opted not to on the second build.
Reply With Quote
  #20  
Old 01-25-2021, 05:10 PM
ghrocketman's Avatar
ghrocketman ghrocketman is online now
President, MAYHEM AGITATORS, Inc.
 
Join Date: Jul 2005
Location: Michigan
Posts: 11,337
Default

The one I built in my youth I did those tedious dowels and hand cut fins.
Not on ANY in future. I got Semroc laser-cut fins for both of my kits and will either make towers out of Plastruct rod or buy the 3d printed ones.
__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL
, if you have to ask what is "NORMAL" , you probably aren't
!
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 04:55 PM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe 1998-2021