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Drilling Jig for Two Track Cribbage Board

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Project by EWJSMITH posted 12-04-2016 10:41 PM 1702 views 6 times favorited 2 comments Add to Favorites Watch

Hi all,
First time posting here in almost a year. Shop hasn’t been shutdown – just been so busy that I haven’t really had time to sit and talk about the projects. But I wanted to share this one cause I love building jigs that will help make a job easier. Quite some time ago I posted a different type of jig for doing cribbage boards but have now built a different version/style. The idea behind this one is simple – an adjustable base and a moveable sled. The pics show how it works pretty much but here’s a brief description too:
1 Pic 1 and 2 shows the bases – one attached to the drill press table with bolts – the other one moves front and back on this attached base using two dowels to position them in pre-drilled holes in the fixed base. This allows positioning to do the inside and outside lanes. The fence on the movable base has a section with pre-drilled holes to match what I wanted on the crib board. This is the most critical part for precision. I marked the holes precisely with a center punch to make an indentation for the drill bit to follow and then used a 1/8” brad point bit to bore them. I took my time with this to get them as precise as possible. Spacing has to be bang on or any discrepancies will show in the final crib board.
2. Pic 3 shows the sled – space for a 12” board with a toggle clamp to hold the blank in place.
3. Pic 4 and 5 shows the pin at the end of the sled that is used register the sled and blank as it moves up the fence. The pin is a 1/8” wooden dowel – not glued to allow for replacement. Had to give the dowel a slight nip with pliers to have it fit with ease into the fence with no play.
4. Pic 6 shows a blank piece of oak that I used to give it a test run. Pretty darn good if I do say so! And I would say I can knock out drilling a board in less than 5 min based on this test run. I’ll spend more time building blanks. Now to crank a few out for Christmas!

Thanks for looking. And as usual any questions or comments, please let me know.

Cheers!





2 comments so far

View helluvawreck's profile

helluvawreck

28227 posts in 2649 days


#1 posted 12-05-2016 02:16 PM

This is a nice jig. Congratulations.

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

View CameronL's profile

CameronL

9 posts in 519 days


#2 posted 12-05-2016 02:59 PM

Brilliant! I look forward to adapting this for my own use.

-- -Cameron

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