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HelicopterCAD - Engineering - Technical › Anyone making CF vert fins?
11-09-2005 05:09 PM  12 years agoPost 1
darkfa8

rrElite Veteran

Brick, NJ - USA

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I'm looking to get a custom CF tail stinger made for my Tiger 50. I have a template that was made out of .090" aluminum. Mounting hole center-to-center is 30mm.

Can anyone do this?

- Dan Goldstein
Team Revolectrix

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11-10-2005 03:00 AM  12 years agoPost 2
Saint728

rrProfessor

Honolulu, Hawaii

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Just make one yourself. Buy a piece of scrap carbon, then clamp the aluminum fin you have onto the carbon. Then cut it out using a fine saw or a Dremel tool with a cut off wheel, then file it down so the edge is nice. Remember to wear a mask.

Take Care,
Cheers, Patrick

Check the hotties in my Gallery
http://rc.runryder.com/helicopter/gallery/9019/?all=photo

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11-14-2005 11:18 PM  12 years agoPost 3
sbalder

rrApprentice

Brighton, Michigan

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If it is like what you have pictured in your gallery I have a CNC mill and can easily route it. If you can draw it up in a CAD dxf file it would be easiest. Otherwise I'd need a fairly good picture with the critical dimensions called out.

I typically make fins of this size out of 1.5 mm CF plate.

-Steven Balder

-Steven Balder

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11-15-2005 12:04 AM  12 years agoPost 4
darkfa8

rrElite Veteran

Brick, NJ - USA

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Steven,

I found out through Quick UK that the vertical fins for the JR Venture helis will fit. It'll cost me ~$18-$20-something dollars shipped to the USA.

I do like the tail stinger that I made out of .090" alu., but a CF one would be nice. I can just send you the alu. one since I'm not competant enough to create a rendition in CAD and I don't actually own a decent CAD program.

Let me know what you'd charger to make one of these. Thanks,

- Dan Goldstein
Team Revolectrix

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11-16-2005 01:18 AM  12 years agoPost 5
sbalder

rrApprentice

Brighton, Michigan

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The real "cost" in making something like this is in the design work. For example, to go from a good CAD file to finished part is only about an hour with setup and finishing. To design it adds another 3 hours or so. If you figure my hobby time is worth $10/hr. (fortunately my employer pays me more ), plus $10 for material and shipping, I'd charge you $50 for a completed part, or $60 for 2 completed fins.

-Steven Balder

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11-17-2005 04:27 AM  12 years agoPost 6
Paul_Barsamian

rrVeteran

Glenview (North Suburban Chicago)

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Hey guys I second the motion, I have two CNC machines and do a lot of carbon and aluminum. If you have a drawing, they can be done pretty cheap, drawing the parts to dimensions is the longest and most expensive part of the process. I use 2mm for nitro models because I have had trouble with the 1.5m carbon buzzing/flapping.

In most cases you can make them cheaply yourself from carbon stock and a good dremel, and some creative sanding. But USE A RESPIRATOR, cf is highly carcinogenic (causes lung cancer and many other fun problems). Recommend doing dremeling in the garage NOT basement, (trust me )

Son, before you can soar with the eagles you have to learn to sh** with the chickens

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11-17-2005 04:29 AM  12 years agoPost 7
darkfa8

rrElite Veteran

Brick, NJ - USA

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where can I get the proper weave 2.0mm thick CF sheet?

- Dan Goldstein
Team Revolectrix

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11-17-2005 04:39 AM  12 years agoPost 8
S76 Mech

rrElite Veteran

Hatboro, Pa.

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Dan,

Try this guy, he's out of West Milford, New Jersey. Under the products link theres a sublink named scraps. It's 4x4 but if you shoot him an email, he might be able to do something larger.

http://www.mjpcarbon.com/home

Gaui Greatness X7, X5, NX4, X3

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11-17-2005 04:45 AM  12 years agoPost 9
darkfa8

rrElite Veteran

Brick, NJ - USA

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ok, well.. emailed my friend Brady at ibild.com to see if he has any scraps floating around, otherwise I'll pick up that scrap from MJP

thanks Rick

- Dan Goldstein
Team Revolectrix

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11-28-2005 05:25 AM  12 years agoPost 10
tauscnc

rrKey Veteran

Joliet IL

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here are a few places,

http://www.cstsales.com/ (still don't have pictures up after emailing them 2 or 3 times suggesting it well over a year ago!...come on people!). Anyway you want the Accent Panel.

http://www.machv.com/cafiplsh.html

http://www.goodwindskites.com/

http://www.robotcombat.com/marketplace_carbonfiber.html

For cutting them you want a fishtail router

http://www.drilltechnology.com/router/diamondfc.html

here is a page of the raptor fins I cut
http://cuttingedgecnc.com/raptor.htm

If you need any more info let me know. The fishtail router makes short work of the CF...just make sure you have ways to keep the dust down. Don't breath that stuff in.

taus
http://www.cuttingedgecnc.com

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