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Re: [GMCnet] How to measure for accurate hole drilling? [message #317440 is a reply to message #317367]

Fri, 12 May 2017 10:07

Michael Bozardt

Messages: 367
Registered: January 2007
Location: College Station, Texas

Karma: 1

Senior Member

AH-SO, I am trying dowels but takes much time to whittle down to size. Good news is if works, I can use them on lower panel as well.

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Re: [GMCnet] How to measure for accurate hole drilling? [message #317463 is a reply to message #317440]

Fri, 12 May 2017 14:42

hal kading

Messages: 642
Registered: February 2004
Location: Las Cruces NM

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Senior Member

How about these aircraft hole finders?

https://www.browntool.com/Default.aspx?tabid=344&CategoryID=77&Level=a

Hal Kading 78 Buskirk Las Cruces NM

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Re: [GMCnet] How to measure for accurate hole drilling? [message #317479 is a reply to message #317463]

Fri, 12 May 2017 19:22

sgltrac

Messages: 2797
Registered: April 2011

Karma: 1

Senior Member

That is cool Hal. Never heard of such a thing. gonna have to get a set

Sully
77 eleganza 2
seattle

On Fri, May 12, 2017 at 12:42 PM, Hal Kading wrote:

> How about these aircraft hole finders?
>
> https://www.browntool.com/Default.aspx?tabid=344&CategoryID=77&Level=a
>
> Hal Kading 78 Buskirk Las Cruces NM
>
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Sully 77 Royale basket case. Future motorhome land speed record holder(bucket list) Seattle, Wa.

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Re: [GMCnet] How to measure for accurate hole drilling? [message #317485 is a reply to message #317463]

Fri, 12 May 2017 20:33

C Boyd

Messages: 2629
Registered: April 2006

Karma: 18

Senior Member

Sir, thanks for sharing. I have one and had no idear what it was. The only person at Bean Station even coming close to N M was Manny and he said the couch was to big to carry on the plane. Still looking for it a ride.

hal kading wrote on Fri, 12 May 2017 15:42

How about these aircraft hole finders?

https://www.browntool.com/Default.aspx?tabid=344&CategoryID=77&Level=a

Hal Kading 78 Buskirk Las Cruces NM

C. Boyd
76 Crestmont
East Tennessee

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Re: [GMCnet] How to measure for accurate hole drilling? [message #317489 is a reply to message #317440]

Fri, 12 May 2017 22:58

GMC Cruse

Messages: 606
Registered: June 2009
Location: SE Michigan

Karma: 3

Senior Member

Michael Bozardt wrote on Fri, 12 May 2017 11:07

AH-SO, I am trying dowels but takes much time to whittle down to size. Good news is if works, I can use them on lower panel as well.

An easier way might be to make a template of the cover out of thin cardboard, tape it in place and tap the area of the holes lightly a number of times with a small ballpein hammer. On the backside of the cardboard will be circle marks of the holes. Most times you are even able to punch out the hole completely like a paper punch would with the hammer. Lay the template over your cover and drill the holes in the cover.

Mike K. '75 PB Southeast Michigan

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Re: [GMCnet] How to measure for accurate hole drilling? [message #317490 is a reply to message #317463]

Sat, 13 May 2017 07:59

Matt Colie

Messages: 8547
Registered: March 2007
Location: S.E. Michigan

Karma: 7

Senior Member

hal kading wrote on Fri, 12 May 2017 15:42

How about these aircraft hole finders?

https://www.browntool.com/Default.aspx?tabid=344&CategoryID=77&Level=a

Hal Kading 78 Buskirk Las Cruces NM

Those are neat and I have used them laying aluminum patches on hulls, but they really on work well on joining flat sheets. Our (or at least my) door(s) have a lip that will preclude getting the centering pin into the hole.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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Re: [GMCnet] How to measure for accurate hole drilling? [message #317493 is a reply to message #317489]

Sat, 13 May 2017 10:32

GMC Cruse

Messages: 606
Registered: June 2009
Location: SE Michigan

Karma: 3

Senior Member

This photo gives an example of how I used the cardboard and ballpein hammer method to mark existing holes on a '35 ford frame I was repairing. I marked the holes and used two from an area where the metal was not cut out and replaced to line up the template then drilled the new holes. after the picture was taken , I had tapped the cardboard some more and most of the holes ended up looking like I had used a paper punch to make them.
http://www.gmcmhphotos.com/photos/gmc-photos/p63102-marking-existing-holes.html

Mike K. '75 PB Southeast Michigan

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Re: How to measure for accurate hole drilling? [message #318139 is a reply to message #317163]

Mon, 29 May 2017 11:26

Michael Bozardt

Messages: 367
Registered: January 2007
Location: College Station, Texas

Karma: 1

Senior Member

Phase II - - I tried dowels, that did not work. Next, paint pencil around the holes, that did not work.
Finally, used the Dremel tool with a very small point on a little grinding bit. Was able to get close enough or centered in the hole to enlarge the small hole enough for the screws to fit. Top panel hung and will hang the lower panel on the door today.

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Re: [GMCnet] How to measure for accurate hole drilling? [message #318142 is a reply to message #318139]

Mon, 29 May 2017 11:54

James Hupy

Messages: 6806
Registered: May 2010

Karma: -62

Senior Member

If there are existing screw holes in the door itself, and I am using a
fabric covering, I use a needle pointed scribe and pierce the fabric and
probe the existing holes. If I am using a rigid faced panel, I use trim
screws with a washer head to secure the panel. Sometimes called by other
names, but they incorporate a stainless or Chrome plated brass washer under
the screw head. Fairly forgiving, you can use a bit larger hole and align
the panel with the edge of the door. On my own coach, I used Naugahyde to
cover the door. Sheds water very well, and scuff resistant. Not dog claw
proof however.
Jim Hupy
Salem, Or
78 GMC ROYALE 403

On May 29, 2017 9:42 AM, "Michael Bozardt" wrote:

> Phase II - - I tried dowels, that did not work. Next, paint pencil around
> the holes, that did not work.
> Finally, used the Dremel tool with a very small point on a little grinding
> bit. Was able to get close enough or centered in the hole to enlarge the
> small hole enough for the screws to fit. Top panel hung and will hang the
> lower panel on the door today.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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