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Horizontal Boring

3/17/18       
gary

My question is for those of you who use dowels in the construction of your doors. If you use a double spindle boring machine can you set it up like a single spindle machine with a fence index mark between the two spindles and a pencil line on the material that lines up with the mark on the fence? Old school. Idiot (ME) proof.

3/18/18       #2: Horizontal Boring ...
bobjh Member

I set up a mirror on my horizontal boring machine, so I could see the pencil lines drawn on the stiles. Bob

3/19/18       #3: Horizontal Boring ...
ML

Bob, can you post a photo of how your mirror is set up? Sounds interesting!

3/19/18       #4: Horizontal Boring ...
Kevin Jenness

That is how I set up my manual slot mortiser, which I occasionally use for dowelling. I typically use a wooden fence the same height as the workpiece so I can line up the index marks in the same plane from above, but if you have to operate the machine from behind a taller fence you may want to set up a mirror as Bob suggests.

3/19/18       #5: Horizontal Boring ...
Geoff

In my opinion a more accurate and faster method is to add flip stops to your fence. I have a seven feet of track and four flip stops from Kreg Company. Easy and not much money invested.

3/19/18       #6: Horizontal Boring ...
bobjh Member

Website: http://hardinsindustries.com

Sorry Gary I am not in the door business anymore, so I have taken everything apart. I can't take a photo. But I'm sure you can figure it out, it is just common sense. Bob

3/19/18       #7: Horizontal Boring ...
gary

I was hoping that someone could answer my original question. Should I re-phrase it?

3/20/18       #8: Horizontal Boring ...
ML

Gary, there is no reason why you couldn't use a centerline between your 2 bores, I used to do that myself with my Ritter Horizontal boring machine. I stopped once I built the custom 'pin detent' set you see in the attached photos. I purchased the spring loaded detents from McMaster Carr and tapped them into the steel plates. I laminated the tables with Color core Wilson Art HPL.

This is my setup for entry and passage doors with up to 6" head rails, 8" lock rails and 10" foot rails. Works like a charm - rails are always dead balls on! I do have the extension tables hinged so they can be dropped down (after removing the front wooden plate) for tighter storing. It only takes about 3 minutes to break it down or set it up due to all tapped steel inserts with locating pins for ease of alignment.

I bore with a 17/32" drill bit and use 1/2" x 4-1/2 spiral + grooved dowels.


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View higher quality, full size image (4032 X 3024)

3/20/18       #9: Horizontal Boring ...
ML

Here's some more views of the above mentioned Ritter boring machine setup I built. It is so much more accurate than trying to align center marks drawn with a pencil.

That's why I was intrigued with the mirror setup (but not for my doors, just other boring projects using the same machine). mike


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3/20/18       #10: Horizontal Boring ...
ML

I should note that those spring loaded pins are also able to be retracted back when not needed. You just pull back on the knurled knob and give it a quarter turn twist to lock it back. You can also adjust the spring tension by dialing in the knurled knob - that comes in handy when leaving all the pins protruding out. There is absolutely no side play in the pins at all.

mike


View higher quality, full size image (4032 X 3024)

3/20/18       #11: Horizontal Boring ...
ML

I do use a 1" deep stub tenon on this type door, so I always bore my dowel holes before running my stick & cope.

I can't tell you how great it is to have this setup! A recent job with 37 rustic oak passage doors precipitated me to fabricate this setup and I haven't looked back since!

mike


View higher quality, full size image (3600 X 2025)


View higher quality, full size image (3600 X 2025)


View higher quality, full size image (3600 X 2025)

3/30/18       #13: Horizontal Boring ...
Gerry

Mike, Can you tell us where you are getting your dowels. I have been looking for some 3" 12mm dowels and have not had much luck.

Thanks,
Gerry

4/7/18       #14: Horizontal Boring ...
Jarin Smoker [Architectural Woodworking Forum] -- [206.192.83.118]  Member

Gerry,

I get 12mm and 16mm dowels from Rangate. The dowels are a rot resistant wood from Europe. I have been pleased with the service from Rangate.

4/7/18       #15: Horizontal Boring ...
Gerry

Thanks Jarin I did not know they sold dowels. I just bought a shaper cutter from them last week. I will give them a call.

Gerry


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