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  #11  
Old 03-10-2017, 03:15 PM
Gandalf Gandalf is offline
 
Join Date: Apr 2008
Location: Medford, OR
Posts: 256
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Here is an update. Although the new vacuum powered Dremel drill does vacuum up the dust, it does not have enough power to easily cut the engine cowling fiberglass. Instead, I used duct tape to attach a shop vac hose to an electric Dremel with a good result. The Dremel 543 1-1/4 cutting/shaping wheel cuts like butter and seems very durable.

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  #12  
Old 03-11-2017, 12:01 AM
hufise hufise is offline
 
Join Date: Jun 2010
Location: Uster, Zuerich, Switzerland
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Hi to all Dremel friends but...


I would recommend Fine tools there is only a little dust down on the floor

Daniel

#12383

Flying over 300 hours
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  #13  
Old 03-11-2017, 05:51 AM
bruceflys bruceflys is offline
 
Join Date: Aug 2014
Location: Ocala, FL (Leeward Air Ranch)
Posts: 64
Default Another Dremel Cutter

Dremel makes a diamond cutting wheel that creates significantly less dust than its grit wheel. https://www.amazon.com/gp/product/B0...=ATVPDKIKX0DER
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  #14  
Old 03-11-2017, 06:43 AM
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DanH DanH is offline
 
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Shop dust is a constant battle. Keep in mind that a lot of fiberglass parts rough trim very well with a big pair of tin snips.
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  #15  
Old 03-11-2017, 07:22 AM
bobnoffs bobnoffs is offline
 
Join Date: Jul 2012
Location: n. wi
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when i started on my cowl i finally bit the bullet and drilled a hole thru my shop wall into the pole barn and made my fresh air respirator a permanent fixture in my shop. and whenever i cut with any power tools i have a vac. hose in one hand. the vac must get 80-90% of the dust.
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  #16  
Old 03-11-2017, 08:59 AM
dtw_rv6 dtw_rv6 is offline
 
Join Date: May 2008
Location: Martinsville, IN
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Quote:
Originally Posted by DanH View Post
Shop dust is a constant battle. Keep in mind that a lot of fiberglass parts rough trim very well with a big pair of tin snips.
I like using tin snips for rough cuts as well. I've noticed that fiberglass can tend to delaminate when sheared like this, so I always make sure I'm sanding or fine grinding away enough that you have sound material in the final piece.

Don
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  #17  
Old 03-11-2017, 09:26 AM
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snopercod snopercod is offline
 
Join Date: Aug 2016
Location: Asheville, NC
Posts: 365
Default rotary scissors

On my Lancair kit, I had to trim probably 100 linear feet of fiberglass. The tool of choice for doing that job was an electric tool the size of a sabre saw called "rotary shears" or "rotary scissors". The tool had two 1/8" thick hardened steel wheels which played against each other like the halves of a pair of scissors. One wheel was driven by the slow-speed motor and the other was freewheeling. The discs weren't sharp like knives rather, the edges were flat. I think this tool was designed for cutting fabric. They worked great on cured fiberglass, but I don't think they're available any more. I sold my pair long ago.
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  #18  
Old 03-11-2017, 08:49 PM
Gandalf Gandalf is offline
 
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Location: Medford, OR
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Quote:
Originally Posted by bruceflys View Post
Dremel makes a diamond cutting wheel that creates significantly less dust than its grit wheel. https://www.amazon.com/gp/product/B0...=ATVPDKIKX0DER
Hardly any dust with the vacuum.

And it is hard to explain: the FACE of the cutter/shaper is a shaper. Push up against the cut line and it is like using a rotary sander. So you can cut leaving a small band or residual here and there and by slightly pushing UP into the cut line you can sand off any residual material flush to the cut line.
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  #19  
Old 03-12-2017, 03:25 AM
Tom Martin Tom Martin is offline
 
Join Date: Jan 2005
Location: Ontario, Canada
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Get yourself an oscillating cutter. They are the bomb for cutting fiberglass. Fein tools sells the Cadillac version but I saw a Dewalt on amazon for $130. Carpenters use them for fine cutting jobs. The vibration action makes dust that simply falls to the floor. They are similar to what hospitals use to cut casts off. Very,very safe and a kerf line ,cut line, about .032 or less.

https://www.amazon.ca/DEWALT-DCS355B...cillating+tool
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  #20  
Old 03-12-2017, 05:34 AM
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Piper J3 Piper J3 is online now
 
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Location: Hinckley, Ohio
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Or this, if you don't need battery operated... $32 at Home Depot
.
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