Ye Olde Rocket Forum

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


Closed Thread
 
Thread Tools Search this Thread Display Modes
  #11  
Old 12-14-2022, 09:49 PM
vcp vcp is offline
Intermediate Rocketeer
 
Join Date: Mar 2011
Posts: 90
Default

What if the contestant could testify that he/she originated the CAD model that was used for the 3D print? Isn't that a modeling skill that should be considered?

And then the question of buying printed parts rather than printing them yourself. A 3D printer is a modeling tool that also requires learning a skill to be used effectively, just like a lathe.

No idea how to consider such things, just spitballing.
__________________
KE7FIZ
Nike Historical Society
Reply With Quote
  #12  
Old 12-15-2022, 06:59 AM
GuyNoir's Avatar
GuyNoir GuyNoir is offline
NAR # 19250 - Life Member
 
Join Date: Sep 2008
Location: Woodstock, IL
Posts: 493
Default

Sigh . . .
Attached Thumbnails
Click image for larger version

Name:  Dead Horse 2.jpg
Views: 32
Size:  38.2 KB  
__________________
A dark night in a city that knows how to keep its secrets. But high above the quiet streets on the 12th floor of the Acme Building, one man is still trying to find the answers to life's persistent questions. Guy Noir, Private Eye.

Fox Valley Rocketeers: http://www.foxvalleyrocketeers.org
Reply With Quote
  #13  
Old 12-15-2022, 07:09 AM
John Brohm's Avatar
John Brohm John Brohm is offline
NAR #78048 L1 - Life Member
 
Join Date: Feb 2005
Location: Mars, PA
Posts: 736
Default

Quote:
Originally Posted by Ez2cDave
That post sounded like you were talking about Sport Scale, not Precision Scale, where digital calipers used used to determine adherence to Scale ( Scale Factor )

Dave F.


Hi Dave;

Makes no difference whether it's measured or not. Plenty of accurate models have been produced over the years in Precision Scale events long before 3D printing came along. Again, it's a craftsmanship event.

If your point is that 3D printing might make it easier to produce accurate parts, then I would agree, and if that makes it easier for folks to participate in the event, I say Super! The more models the better. But the finished model still has to do well in the other judging categories to reach a top place.
__________________
John
YORF #003
SAM #004
Reply With Quote
  #14  
Old 12-15-2022, 07:20 AM
Bill's Avatar
Bill Bill is offline
I do not like Facebook
 
Join Date: Sep 2008
Location: North Tejas
Posts: 3,087
Default

Is it fair to have to compete against people using

* fin jigs
* piston launchers
* launch towers
* R/C


Bill
__________________
It is well past time to Drill, Baby, Drill!

If your June, July, August and September was like this, you might just hate summer too...

Please unload your question before you ask it unless you have a concealed harry permit.

: countdown begin cr dup . 1- ?dup 0= until cr ." Launch!" cr ;

Give a man a rocket and he will fly for a day; teach him to build and he will spend the rest of his days sanding...
Reply With Quote
  #15  
Old 12-15-2022, 07:35 AM
John Brohm's Avatar
John Brohm John Brohm is offline
NAR #78048 L1 - Life Member
 
Join Date: Feb 2005
Location: Mars, PA
Posts: 736
Default

Quote:
Originally Posted by vcp
What if the contestant could testify that he/she originated the CAD model that was used for the 3D print? Isn't that a modeling skill that should be considered?

And then the question of buying printed parts rather than printing them yourself. A 3D printer is a modeling tool that also requires learning a skill to be used effectively, just like a lathe.

No idea how to consider such things, just spitballing.


Those are all good questions, but they are not likely to make any kind of appreciable dent in the scoring. To the extent they could have an effect it would be captured in Degree of Difficulty. Right now, that category is only worth 100 points in Sport Scale judging. Finish, Colors and Markings is worth 200 points, and Craftsmanship is worth 300 points. Usually, the top models tend to be determined by the results in those latter categories.
__________________
John
YORF #003
SAM #004
Reply With Quote
  #16  
Old 12-15-2022, 08:49 AM
georgegassaway's Avatar
georgegassaway georgegassaway is offline
Contest, Sport, it's all good......
 
Join Date: Jul 2008
Location: West of Minneapolis, MN
Posts: 760
Default

I look forward to finding out whether Dave Fitch's Scale Model entry for NARAM-64 uses 3D printed parts or not.

I'll guess no 3D printed parts.

And also no parts of any kind whatsoever.

(as in talk-talk-talk-talk-talk-talk-talk-talk-talk-talk-talk-talk-talk-talk-talk-talk-talk-talk.......... and no action).


FWIW - Tom Beach's Litle Joe-II model at NARAM-63 was AWESOME. It was almost all 3D printed (Except for the riveted skins on the fins, rivet "bumps" punched into thin plastic , then an RTV mold made and the skins cast). And he even used an all 3D printed launch pad for a display stand.

He created all of the 3D files for it himself.

Everyone was blown away by his incredible model. Nobody was whining.

Here's a video of it. https://m.youtube.com/watch?v=YrLdBrP_Scg

Also, he (and I) created the Scale Data Drawings that were used for it. May/June and July-August 1992 issues of American Spacemodeling magazine (Now Sport Rocketry, which Tom has been the editor for for over 25 years).

__________________
Contest flying, Sport flying, it's all good.....
NAR# 18723 NAR.org
GeorgesRockets.com
Georges'CancerGoFundMe:
https://www.gofundme.com/f/help-geo...ay-fight-cancer

Last edited by georgegassaway : 12-15-2022 at 09:21 AM.
Reply With Quote
  #17  
Old 12-15-2022, 09:02 AM
astronwolf's Avatar
astronwolf astronwolf is offline
Lost his Drifter
 
Join Date: Mar 2013
Location: Northeast Ohio
Posts: 1,277
Default

Where has 3D printing impacted craftsmanship events to the point of their use being "unfair." Where is the evidence?

There is none.
__________________
-Wolfram v. Kiparski
NAR 28643 - TRA 15520
MTMA Section #606 President
Reply With Quote
  #18  
Old 12-15-2022, 09:11 AM
John Brohm's Avatar
John Brohm John Brohm is offline
NAR #78048 L1 - Life Member
 
Join Date: Feb 2005
Location: Mars, PA
Posts: 736
Default

I think Dave is speculating there could be unfairness. But as I've tried to explain, perhaps not that clearly, is that under the present scoring system I don't think 3D printing has that much of an impact.
__________________
John
YORF #003
SAM #004
Reply With Quote
  #19  
Old 12-15-2022, 09:23 AM
John Brohm's Avatar
John Brohm John Brohm is offline
NAR #78048 L1 - Life Member
 
Join Date: Feb 2005
Location: Mars, PA
Posts: 736
Default

Quote:
Originally Posted by georgegassaway
...

FWIW - Tom Beach's Litle Joe-II model at NARAM-63 was AWESOME. It was almost all 3D printed (Except for the riveted skins on the fins, rivet "bumps" punched into thin plastic , then an RTV mold made and the skins cast).

...

[/img]


Hi George;

I agree - Tom's model was indeed fantastic. And he scored first in Static, not because of the 3D printing, but because he had the best finish, most accurate markings, and the best craftsmanship.
__________________
John
YORF #003
SAM #004
Reply With Quote
  #20  
Old 12-15-2022, 09:26 AM
astronwolf's Avatar
astronwolf astronwolf is offline
Lost his Drifter
 
Join Date: Mar 2013
Location: Northeast Ohio
Posts: 1,277
Default

Quote:
Originally Posted by John Brohm
I think Dave is speculating there could be unfairness. But as I've tried to explain, perhaps not that clearly, is that under the present scoring system I don't think 3D printing has that much of an impact.



Speculating...

So let's all join the witch hunt to root out "unfairness."

I'd rather be rooting out the $ht posters.
__________________
-Wolfram v. Kiparski
NAR 28643 - TRA 15520
MTMA Section #606 President
Reply With Quote
Closed Thread


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 05:46 AM.


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