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Getting my tools ready #21: MURPHY'S DRILL PRESS TABLE EXTENSION JIG

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Blog entry by DocSavage45 posted 06-20-2015 12:47 AM 1582 reads 1 time favorited 13 comments Add to Favorites Watch
« Part 20: Murphy's Drill Press Table! Part 21 of Getting my tools ready series Part 22: ROUGH CUT STRAIGHTEDGE CUTTING JIG WITH KNOBS II (THE NEW AND IMPROVED VERSION!) »

MURPHY’S DRILL PRESS TABLE EXTENSION JIG

After I finished working on the drill press table and posting it on LJ’s I drilled out 30+ holes accurately for my next project. I am building a chainsaw mill bench/stand. I was pleased that I accurately drilled the holes for the carriage bolts in the supports and cross members.

My next task was to pre-drill screw holes in the support bracing that will hold the cross members and supports.

I stood there thinking “how am I going to drill these accurately,” and it came to me that I needed an accurate extension arm very similar to the kind used on crosscutting sleds. I was very fortunate to find a pristine four by three-quarter piece of clear pine which is unusual for my shop.

I sanded the pine board up to 220 grit, and coated it with two coats Of Seal Coat. I apparently did a good job or maybe it was just a really good piece of wood, but with a slight rubbing of four ought steel wool it was ready for marking. I purchased a fine and an extra fine sharpie.

I wanted to set up an accurate rule in one-inch segments that extended from the center of the drill chuck. This indeed was the most difficult part for me in that I am easily influenced by Murphy toward impatience and inaccuracy. You can see in the first picture that it was time for a coffee break. LOL!

After patiently marking the one-inch segments and accurately drilling holes at the zero, 10 inch, 20 inch, and 24 inch marks, two coats of waterborne poly were applied. After it dried. I attached the end piece that holds extended board with glue, nails and two screws.

I scribed lines from top to bottom at the zero mark, and 2 inch mark in both directions from center.

You can see from the back of the drill press the extended arm with stop. You can also see that I drew a line with the sharpie that goes through the center of the drill press table to line up to zero mark on the drill press fence and extension.

You can also see that the extended arm can also provide one-inch reference points when necessary in order to drill other types of holes.


Thanks for checking this out! As always, your comments, criticisms and witticisms are always welcome!

-- Cau Haus Designs, Thomas J. Tieffenbacher



13 comments so far

View PhilBello's profile

PhilBello

390 posts in 1435 days


#1 posted 06-20-2015 12:56 AM

Patience is a virtue Tom!!!...lol

-- If you want the rainbow, you got to put up with the rain - Steven Wright

View DocSavage45's profile

DocSavage45

7708 posts in 2310 days


#2 posted 06-20-2015 01:00 AM

Phil,

So that’s why it’s so difficult? LOL!

-- Cau Haus Designs, Thomas J. Tieffenbacher

View whitebeast88's profile

whitebeast88

4093 posts in 1658 days


#3 posted 06-20-2015 01:23 AM

Great idea.
I need to build a do table like yours.
I also have no patience which is why I don’t accomplish much!!!

-- Marty.Athens,AL

View DocSavage45's profile

DocSavage45

7708 posts in 2310 days


#4 posted 06-20-2015 01:26 AM

Marty,

As Andy the wood artist box maker says”If I can you can!” Except no art here? Just patience. Walking away, taking a coffee break helps.

Check out previous blog, lots of pictures? LOL!

-- Cau Haus Designs, Thomas J. Tieffenbacher

View Blackie_'s profile

Blackie_

4541 posts in 1980 days


#5 posted 06-20-2015 02:51 AM

Nice Tom, what size is your drill press?

Did you hand draw each segment onto the top of the fence? I belive there is adhesive backing measuring tape that maybe of worked?

By the way my bench is done to lazy to post it tonight so I’ll post it in the morning along with the addition finale on my blog

-- Randy - If I'm not on LJ's then I'm making Saw Dust. Please feel free to visit my store location at http://www.facebook.com/randy.blackstock.custom.wood.designs

View DocSavage45's profile

DocSavage45

7708 posts in 2310 days


#6 posted 06-20-2015 03:03 AM

Randy,

The tape would have worked. But this way I have numbers on top and reference lines across the table. I used a Starret tape on my Grizzly cabinet saw refurbishing. And yes I did each damn line. LOL!

It’s a 17 inch floor model Tradesman. You can see it in my earlier blog. Meant for a machine shop. The table also required many fits before getting the bolt pattern.

-- Cau Haus Designs, Thomas J. Tieffenbacher

View DocSavage45's profile

DocSavage45

7708 posts in 2310 days


#7 posted 06-20-2015 03:03 AM

Oh yeah, thanks!

-- Cau Haus Designs, Thomas J. Tieffenbacher

View doubleDD's profile (online now)

doubleDD

5252 posts in 1511 days


#8 posted 06-20-2015 04:16 AM

Tom, that’s a cool set up. I really like how it slides. I may be using your blog for a future build. Thanks.

-- Dave, Downers Grove, Il. -------- When you run out of ideas, start building your dreams.

View DocSavage45's profile

DocSavage45

7708 posts in 2310 days


#9 posted 06-20-2015 05:52 AM

Dave,

The blog before is the table.

Check out Stumpy Nubbs and Steve Ramsey the YouTube addresses are in the blog.

-- Cau Haus Designs, Thomas J. Tieffenbacher

View Blackie_'s profile

Blackie_

4541 posts in 1980 days


#10 posted 06-20-2015 10:53 AM

Ah ok, mine is 15” floor model in which that extra 3 inches you have makes a big difference when it comes to a table and fence, I don’t have the room I’d like to work with.

-- Randy - If I'm not on LJ's then I'm making Saw Dust. Please feel free to visit my store location at http://www.facebook.com/randy.blackstock.custom.wood.designs

View DocSavage45's profile

DocSavage45

7708 posts in 2310 days


#11 posted 06-22-2015 06:28 PM

My DP is actually in an addition I built. But I’m such a pack rat! I assembled it out in that room awhile ago. It is on a mobile base, but not really very mobile. LOL!

Hope you got to ride the pickle, yesterday.

-- Cau Haus Designs, Thomas J. Tieffenbacher

View andyboy's profile

andyboy

559 posts in 2741 days


#12 posted 06-22-2015 08:34 PM

Looks like your back in your happy place! Good on you.

-- Andy Halewoodworker. You can't finish if you don't finish. So finish it, because finish is everything.

View DocSavage45's profile

DocSavage45

7708 posts in 2310 days


#13 posted 06-23-2015 12:19 AM

Andy!

Where have you been? Teaching them future wood guys and girls? LOL! How was your show?

Thanks!

-- Cau Haus Designs, Thomas J. Tieffenbacher

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