I'm mounting the pitot tube just aft of the main spar. Normally I would use a hand rivet squeezer to dimple the #6 screw holes, but in this location it doesn't have the reach. My pop rivet squeezer doesn't have an attachment for #6. Any ideas how to dimple in the middle of a large sheet ?
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Dimpling question
Nev Bailey
Christchurch, NZ
BearhawkBlog.com - Safety & Maintenance Notes
YouTube - Build and flying channel
Builders Log - We build planesTags: None
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AE1022
Above is the part number for a Pop Rivet Dimple Die tool made by Avery, Sold by Aircraft Tool Supply. Its a dimple die with a hole drilled in teh center of the two mating pieces. A nail inserts through the holes and then a common pop rivet gun is used to squeeze the dimple into the sheet.Brooks Cone
Southeast Michigan
Patrol #303, Kit build
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They make a rivet set for a rivet gun that you can put a dimple die in, and drill a hole in a hunk of metal for the other side of the die as a bucking bar. I did break one of my dimple dies that way. For a #6 screw I might use the pop rivet for 1/8 rivet, and finish it with the #6 in the rivet gun.
I did break a die after only 3 or 4 dimples.
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If the mast or whatever your putting the screws into is countersunk then you could just use the screw to dimple the sheet as you tighten it. I did this on a couple of occasions, one of them was mounting the pitot mast. I first installed the countersunk nut plates then screwed in the screw which dimpled the sheet as it tightened.Scratch Built 4-place Bearhawk. Continental IO-360, 88" C203 McCauley prop.
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