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#3486741 - 01/03/12 10:52 AM Re: Gimbal design [Re: VO101MMaister]
VO101MMaister Offline
Junior Member

Registered: 10/08/10
Posts: 86
Loc: Haugesund, Norway
I tried the stick force on my current cougar setup. It is around 2,4kg and I found it pretty strong in a long dogfight. Therefore I can live with the 3,5 kg. So I am finishing the design and begin the super boring drafting.

In the meanwhile I wanna show some cool stuff I bought for this project on E-bay.
These are high quality industrial rotary viscous dampers. They are damping the rotational movements with the help of silicone oil. They provide +/- 40deg super smooth and !adjustable! damping for both axis. The street price of these gems is 580 USD/piece, so it was a bargain for 20USD each considering that they are brand new. I quickly bought 8 pieces:)


dampers by csaba.moharos, on Flickr

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#3490254 - 01/08/12 02:37 PM Re: Gimbal design [Re: VO101MMaister]
VO101MMaister Offline
Junior Member

Registered: 10/08/10
Posts: 86
Loc: Haugesund, Norway
The design is finished. The drawings are also done. CNC and standard part quotations are coming next. I will see now, how much does it cost to dream smile


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#3490289 - 01/08/12 04:19 PM Re: Gimbal design [Re: VO101MMaister]
JAMF Offline
Frugalite & P-38 fan
Senior Member

Registered: 05/29/10
Posts: 2779
Loc: The Netherlands
500€ would be my guestimate, but that's without the sensors and might depend on the metal used. [EDIT] That'd be 3800 NOK


Edited by JAMF (01/08/12 04:20 PM)

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#3490589 - 01/09/12 06:30 AM Re: Gimbal design [Re: JAMF]
VO101MMaister Offline
Junior Member

Registered: 10/08/10
Posts: 86
Loc: Haugesund, Norway
Yep, I think your guess can be quite accurate. I hope the small, family style CNC workshop I have contact with will quote good prices.

The pedal design is coming now. I have some ideas. It is just bloody hard to stand up from the CAD program at work and sit down with the same thing at home:)

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#3490899 - 01/09/12 12:16 PM Re: Gimbal design [Re: VO101MMaister]
JAMF Offline
Frugalite & P-38 fan
Senior Member

Registered: 05/29/10
Posts: 2779
Loc: The Netherlands
Me too. I rather launch a game, than fire up ProE Wildfire or AutoCAD. Although it does make it easier if you have inspiration and want to make something happen. What's your tool of trade?

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#3491285 - 01/10/12 12:20 AM Re: Gimbal design [Re: JAMF]
VO101MMaister Offline
Junior Member

Registered: 10/08/10
Posts: 86
Loc: Haugesund, Norway
I work with Inventor. It became close to an industrial standard over here thanks to Statoil.

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#3491701 - 01/10/12 12:09 PM Re: Gimbal design [Re: VO101MMaister]
JAMF Offline
Frugalite & P-38 fan
Senior Member

Registered: 05/29/10
Posts: 2779
Loc: The Netherlands
Rgr. ProEngineer here, which wouldn't have been my choice and that's putting it mildly. biggrin But after 8 years you learn to live with the quirks. sigh WinkNGrin

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#3492145 - 01/11/12 12:31 AM Re: Gimbal design [Re: JAMF]
VO101MMaister Offline
Junior Member

Registered: 10/08/10
Posts: 86
Loc: Haugesund, Norway
I have never used ProE, but I haven`t heard about too many happy users either:)

Anyway, I think I found my CNC guy. He turned out to be a flyer as well, we used to fly from the same small airfield, and he is building his own autogiro now. So he is more than happy to help me:) He also offered some cool, aerospace grade 7075 Alu.

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#3492608 - 01/11/12 12:41 PM Re: Gimbal design [Re: VO101MMaister]
JAMF Offline
Frugalite & P-38 fan
Senior Member

Registered: 05/29/10
Posts: 2779
Loc: The Netherlands
Originally Posted By: VO101MMaister
So he is more than happy to help me:) He also offered some cool, aerospace grade 7075 Alu.


thumbsup

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#3571578 - 05/12/12 03:20 AM Re: Gimbal design [Re: VO101MMaister]
VO101MMaister Offline
Junior Member

Registered: 10/08/10
Posts: 86
Loc: Haugesund, Norway
A small update for this as well.

This design is also ready for machining, but before that I had to make some adjustments.
I decided to turn the whole gimbal system up side down. So the center of the gimbal can be as close as possible to the mounting plate, while I can use longer springs, and higher mechanism. It is important to keep the center close to the plate, otherwise I can end up with a huuuuge opening on it:)
I installed longer springs, so I can have some more pretension on them. Just like on the pedals I decided to use a simple steel mounting plate. The opening will be covered with leather boot.

Machinging is starting in June:)


Stick2


Stick1

And the two babies together:)


pdl+stick1


pdl+stick2

salute

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