Best Way To Cut F/G Cowl  
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All Forums >> RC Airplanes >> Composites Fabrication And Repair >> Best Way To Cut F/G Cowl
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Best Way To Cut F/G Cowl - 1/11/2008 6:48:28 PM   
Harvest Fields


 

Posts: 87
Joined: 5/3/2007
From: Dyfed, UNITED KINGDOM
Status: offline 		i have a cessna 182 and i need to cut the cowl for my 4 stroke engine. whats the best way to replicate the cowl? papier mache? f/g ? etc. im new to this fabrication thing so bear with me
       Post #: 1

RE: Best Way To Cut F/G Cowl - 1/11/2008 7:26:25 PM   
Ed Smith


 

Posts: 2834
Joined: 12/29/2001
From: Brantford, ON, CANADA
Status: offline 		I take it you want to replicate the cowl in case you screw up the original one while cutting and fitting. Any copying method will require some work.

If that is the case then this is the cheapest and easiest and the most accurate. Assuming (Again) the back of the cowl has a straight profile. Tack glue it down to a flat base. build a box around it about 1" deeper than the cowl and with 1" clearance all around it. Mix up some plaster of paris and pour it into the box. Shake it around a bit to get any air bubbles to rise to the top. After a week dismantle the box and pop out the cowl. You will then have an exact replica of the original cowl. This works only if there are no reverse angles on the cowl that will lock the cowl in the mould.

If you will then use the plaster mould to make another cowl the inside will have to be treated. That is another process.

I have used this method many times for quick dispensible moulds

Ed S

(in reply to Harvest Fields)
       Post #: 2

RE: Best Way To Cut F/G Cowl - 1/11/2008 7:44:15 PM   
Harvest Fields


 

Posts: 87
Joined: 5/3/2007
From: Dyfed, UNITED KINGDOM
Status: offline 		yea thats what i need to do lol. dont wanna screw it up. cheers for the tip

(in reply to Ed Smith)
       Post #: 3

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All Forums >> RC Airplanes >> Composites Fabrication And Repair >> Best Way To Cut F/G Cowl
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