Reventon Fuel Door

[SchulzeA]

Reventon actuator rod 8Z0 862 167 £6.40 , Reventon actuator 8Z0 810 773 A £9.66 , ordering reventon parts ....nice . Reventon fuel cap £24,474.46 

A fresh mind and I'm on board now. Earlier I missed the concept of how it was supposed to function. Thanks String, I'll give it a try. 

[Texas]

Nice work Alan.

[String]

Reventon actuator rod 8Z0 862 167 £6.40 , Reventon actuator 8Z0 810 773 A £9.66 , ordering reventon parts ....nice . Reventon fuel cap £24,474.46 

[Digibeam]

the space between is equal when closed or open so the same tension that would be placed on the hinge to push it upwards to initially grab would be the same tension that would be holding it in place after it has been pulled upright.

[SchulzeA]

 I had planned to use a tension spring on the pivot point like the inner door handles utilize. The plunger is a great idea but I'm not sure that it will have enough travel to keep the handle erect lol.

[String]

If I could put an idea to you , this depends upon the hinge pin pivot position - which is difficult to make out , but a ball plunger under the handle is all that is required to initially pop the handle up when the release actuator is activated . Here I would use genuine actuator and link rod - which has a tapered end to it ( check price on these 2 parts...
Then the ball pressure would then act upon the handle in the raised position to keep it erect 
http://www.jwwinco.com/products/section10/pbp/index.html  [ example ]
Quick mod to pics to demonstrate.

[SchulzeA]

Got a mold made and pulled a part. Still have to machine the script into the handle and mold it.

[SchulzeA]

 

Thanks for sharing the info. I thought that tab was connected to the handle!

My plan of latching the door included magnets with almost the exact same idea as yours. Except for, use a torsion spring to hold the handle in the open position once it has been released from the magnet.


It would be possible to make the handle latch and unlatch remotely from inside the car but I'm concerned that someone will pull on the handle causing something to be broken...

[plans4sale]

 I will tell you a secret, guys. Actually, Alan works at Lamborghini
 
 Below is a cross-section test I did today on the 3d model, just to show how the separate pieces correspond together and what's the clearance around the pivot point of the fuel door.
http://imageshack.us/a/img191/1778/f8z0.png
 http://imageshack.us/a/img823/7199/uoit.png
 http://imageshack.us/a/img593/9314/no5u.png


 By the way, that extra 3rd piece (the tab shown in red) is meant to be made from steel, while a super magnet is bonded at the back of the fuel door. However, I'm not sure if it's safe to place magnets near the fuel opening. But this is certainly the most minimalistic way to do the locking mechanism.
http://imageshack.us/a/img407/1212/0yg4.png

 An alternative way to keep the fuel door closed is to use a spring, but it will look a bit ugly when opened. A synthetic plastic wire (not metal one to prevent damage on the part) could be used where the white line is, while the actual spring is hidden behind so that there is no way to see it from outside. But I think that the magnet option is better in case that it's not dangerous for causing fire.

 Another way is to make the red tab part of the fuel door, and make a hole in the tab so that a remore controleed pin exiting from the main cylindrical body (in the very same way that the yellow screw goes there) will go through the red tab to secure the fuel door.

[BigPines]

Very impressive!

[SchulzeA]

I've made a bit of progress. The tab that extends from the handle portion will be machined separate and attached later. One bolt is also machine and ready to be molded after a bit more polishing. Next step will be programming the Lamborghini text and machining it into the handle.

[SchulzeA]

I couldn't get my program to do the area around the fuel neck correctly without recutting a large portion of the part again. So I just called it good. A little epoxy filler and some sanding will make it perfect to pull a mold from. The drain hole will be drilled from the back side during those machine operations.
The plastic material can be sanded, but it loads up the sanding paper pretty quick. Thankfully my work place has a ton of sandpaper haha

[plans4sale]

 Wow, you sir did some respectable job on this piece of art!  Thanks for the update! Will the material allow sanding to make the part perfectly smooth?
 On a side note, is not it possible to make finish cut on the lower area with the hole where the fuel pipe goes, it there is no such long milling cutter available yet? There must be a tiny water drainage hole next to the hole, as well. 

[SchulzeA]

I was able to recut the fuel door as one piece by using a combination of different tool holders and cutter extensions. The door latch/hinge bottom corners and the floor of the part need cleaned up by hand, but over all I'm happy with the outcome. Now the rear side needs cut but it should be pretty easy.
 

[SchulzeA]

Shweeet! Now make the car blue and it will be perfect!