cooling fins for mars snooper 2 clone?

[tdriver]

Well, I am going to try and build up a mars snooper 2 clone, so I can relive my childhood (heheheh).

I have found most of the stuff to do this, but still need a couple items which lead me to these 3 (initial) questions:

-What thickness of "card stock"/paper do I use for the "coolling fins" and leg rings?

-Any special tips on hand turning the BNC-5BA "ramjet" cones for pods? ( I will probably turn them from 1" balsa cubes, mounted on wooden dowl, spun using my drill or my dremmel.) I have read a few threads and have a rough idea of how to do it. The shape is unique though.

-Wooden dowels to be 1/8" diameter?

BTW, I am very impressed with this group of people on this forum. Everybody seems very cool & helpful, with very little attitude. Pat yourselves on your backs!


I am just getting back into this hobby , and getting my daughter and son involved.

See attached pic of our latest 3: my upscale star snoop from fatboy kit, and thier star dart, and wizard.

thanks
Tim

 

[sandman]

I got a package of Hammermill 110# card stock. I use it for darn near everything.

If you're really cheap just steal a manilla folder from work...good enough.

As for the cones...let me introduce myself...I'm sandman and I make cones.

I think this is what you are looking for.

 

[sandman]

tdriver,

I forgot....WELCOME to our forum.

Here is an important tip.

When you have a question about a build...use the search function first.

It saves us repeating oursevles...actually we don't mind repeating ourselves...we usually forget we said it anyway.

These are my Snoopers and an Excalibur thrown in.

https://www.rocketryforum.com/showt...&perpage=20&highlight=Snooper II&pagenumber=1

 

[tdriver]

Yep, I remember chatting with you many months ago. Your work is well renouned (sp?). YOur many posts are quite helpfull too, by the way.

Those indeed do look to be correct. I probably will try to make some myself, but if I fail miserably, perhaps I could purchase some from you as a backup plan? How much would 3 cones cost including shipping?

Yep, after I posted I found many references to the snooper II. Guess I got ahead of myself.


thanks
Tim

 

[sandman]

Tim,

Try making them yourself first...hey, you may learn something!

If you can't PM me and I'll give you a quote.

The ram jet cones are really hard to do consistantly identical. It's not like yer gonna waste a LOT of wood if you do it wrong.

Tip* For the intake tips of the ramjet cones use a 1/2 dremmel sanding drum held on a 1/2" wood dowel...the shape is pretty close and it allows some consistancy. You do have to make 3 identical cones!

 

[tdriver]

thanks, will do.

 

[tdriver]

Sandman, btw, thanks for the pics of the bnc-5ba cones. I imported them into autocad to try and get some dimensions off of them. See attached if interested.

I thought I might be able to machine some sort of sanding guide from these dimensions to make these things consistantly.

thanks again.
Tim

 

[sandman]

That looks close enough!

 

[tdriver]

not sure I understood what this meant;

"Tip* For the intake tips of the ramjet cones use a 1/2 dremmel sanding drum held on a 1/2" wood dowel...the shape is pretty close and it allows some consistancy. You do have to make 3 identical cones!"

I cant seem to visualize what a 1/2 dremmel sanding drum looks like.. ...

(I'm not retarded, just slow)

thanks
Tim

 

[sandman]

Here's what I use.

They come 6 to a pack.

I also use them mounted on the wood dowel for interior sanding on the lathe.

 

[tdriver]

thanks, nice pic

 

[gpoehlein]

Just out of curiosity, Sandman, what would you charge for the BNC-5BA cones? I have a Snooper 2 that I picked up at a local auction - one of the 5BA cones is gone (as is the entire outside of that fin) and a second is damaged. I would really like to restore this bird to flying condition!

Greg

 

[sandman]

Greg,

The shipping would cost more than the nose cone!

Just a couple of bucks each. They are actually harder to make than you think.

You have to hold your tounge just right when you make them.

I have my original to compare it with.