DanCampbell Posted August 20, 2009 Report Share Posted August 20, 2009 Hello, I am working with 7/8" X 7/8"X 2.5" wood blocks and am having trouble putting a centerline on the block to mark for eye holes. When I drill my eye hold they are always a little off. I am using a drill press and clamps so I think the problem is me. Part of this is due to my eye problems and part of it is me being green with woodworking. Does anyone have any tricks or tips on getting a centerline down the length of the block? When I finally do get one close to perfect I would like to make a jig or template out of Plexi-glass (or something) to repeat the locations. Thanks in advance. Dan Quote Link to comment Share on other sites More sharing options...
redg8r Posted August 20, 2009 Report Share Posted August 20, 2009 Heres a link to a classic centering jig, this jig is for marking center down the length of the stock: (click the image) there are other teks and jigs for marking center on the face/endgrain. Good luck. Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted August 20, 2009 Report Share Posted August 20, 2009 This is not an original idea, in fact, I am sure it has been documented on TU in the past. Make a base plate with a pointed pin. I use 18mm ply wood and a sharpened 3mm dia brass rod for the pin. Make the plate size so that it can be comfortably clamped to the drill press plate/shelf, mine is about 8 Quote Link to comment Share on other sites More sharing options...
mark poulson Posted August 20, 2009 Report Share Posted August 20, 2009 You can use carpenter's scribes, or a drafting compass. Set the width close to half way, pass it down one side, and then reverse the blank and do the other. If it's not dead center, the space between the two lines will be. Quote Link to comment Share on other sites More sharing options...
hazmail Posted August 20, 2009 Report Share Posted August 20, 2009 Dan - Here's a few more, "Home brew Tools" is a good source for this stuff. pete http://www.tackleunderground.com/forum/homebrew-tools/15072-finding-centre-blank.html Quote Link to comment Share on other sites More sharing options...
DanCampbell Posted August 21, 2009 Author Report Share Posted August 21, 2009 Hey guys, Great info, thanks for the help. Dan Quote Link to comment Share on other sites More sharing options...
.dsaavedra. Posted August 21, 2009 Report Share Posted August 21, 2009 bisecting a line segment, middle school geometry just draw a line across the width of your blank, and then follow this video to find the center of the blank. Quote Link to comment Share on other sites More sharing options...
