This time, a 39.95 US$ cheap instrument kicks a 199.99 US$ high sophisticated 3D alignment indicator. It's not only a price contest... the cheap one is at least 10 times more accurate! What about the 6.00 US$ edge finder? well, if I knew the colleague how designed it, I'd probably ask him to stick it you know where. After all it's just 1/2 thick so...

This tutorial will show you how to build a compensator for your milling machine using a quill dro. The machine used here is a NON-Bridgeport type, however you can use the same procedure on a Bridgeport milling machine.

It is not a secret that milling machines are not as precise as a newbey could think. There are lots of little deviation on there many components. This is compleatly normal but every small imperfection will add up giving the assembled machine a very large inacurracy. This is not because you bought a cheap machine or because yours is brocken. It is a normal fact of the machinist's life. But don't worry, there are a few tricks you can apply to correct these errors your machine has. A device that corrects a machine inherent error is sometimes refered to as a compensator as it compenses the error.

  In this review of drill chucks vs ER collets you will find out:

What the manufacturer of your laser printer don't want you to find out! The does and doesn't of refilling your toner cartages, all the money you can safe with a very easy procedure. Is the OEM  better than generic? Find it all out in these short but revealing interview with the HP Q2612A, a mature star of the toner scene.