Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > Work Bench > 3D Printing Asylum
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 10-29-2023, 10:11 PM
Jack Hydrazine Jack Hydrazine is offline
Craftsman
 
Join Date: May 2011
Posts: 246
Default PNC-50K Nose Cone (BT-50 and BT-80 versions)

It's time for another 3D creation by Hydrazine Design!

This one is the Estes PNC-50K nose cone most famously used in the Alpha III model kit.

Estes kits that use this nose cone:

K-56 Alpha III

0650 Quasar

1256 Alpha III

1258 Alpha IV

1989 Liberty

There are two designs with one fitting BT-50 tubing and the other BT-80 tubing.

You can download them for free from Thingiverse and print them on your 3D printer.


https://www.thingiverse.com/thing:6289096
Reply With Quote
  #2  
Old 10-29-2023, 10:52 PM
BEC's Avatar
BEC BEC is online now
Master Modeler
 
Join Date: Feb 2009
Location: Auburn, Washington
Posts: 3,653
Default

Additional places this nose cone has appeared since John Brohm updated his list: Alpha VI (pink metallic), the unnamed rocket in the Rocket Science Starter Set (black, like Alpha IV). And, molded in clear, most versions, including the current one, of the Phantom. I think Mr. Brohm’s list has the clear one as a different part number….but they are physically interchangeable.

There was also a period of about three years centered around 1991 where the regular 1225 Alpha could come with either a red or — rarely — a blue one as an option to a blow-molded white nose cone in either the older shape or the current one.

Yeah, I know, minutiae.

But the red (original Alpha III) and orange (Alpha III since 1993) are the major uses of this unusual injection-molded nose cone.

Jack — does your version have the boss on the inside to used to attach the small screw eye? A quick look at the info on Thingiverse leads me to think it does not. If it doesn’t how do you suggest one attach the shock cord/‘chute to it?
__________________
Bernard Cawley
NAR 89040 L1 - Life Member
SAM 0061
AMA 42160
KG7AIE
Reply With Quote
  #3  
Old 10-30-2023, 06:55 AM
Jack Hydrazine Jack Hydrazine is offline
Craftsman
 
Join Date: May 2011
Posts: 246
Default

I didn't know they had been manufactured in so many different colors. Love that minutiae!

My nose cone does not have that spot for the screw eye.
Reply With Quote
  #4  
Old 10-30-2023, 10:34 AM
SolarYellow SolarYellow is offline
Craftsman
 
Join Date: Feb 2023
Posts: 206
Default

The images on Thingiverse make the tip look considerably more conical than the injection-molded part, which is as close as I can tell spherically blunted.
Reply With Quote
  #5  
Old 11-01-2023, 09:10 PM
Jack Hydrazine Jack Hydrazine is offline
Craftsman
 
Join Date: May 2011
Posts: 246
Default

Quote:
Originally Posted by SolarYellow
The images on Thingiverse make the tip look considerably more conical than the injection-molded part, which is as close as I can tell spherically blunted.


Yes, I screwed up a little on the shape and took the old files down and uploaded new ones that look much better.
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 07:09 PM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2024