Ed in Tampa
12-21-2007, 10:32 AM
Once again something someone said triggered me to get the infernal dial indicator out. :eek:
Oh the frustration!
I was using it to check my fence. I don't know how you guys do it but everytime I touch that indicator I get another reading, .001 is a mere addition of one finger of pressure. I actually found touching my hand at various different locations would and did effect the reading.
Finally after convincing myself my fence needed adjusting I gave up with the dial indicator and decided to try dial calibers.
I clamped them to my mitre gauge, in a way that allowed the the movable jaw to move, and using the depth pin measured my fence front and back. I found after all my work with the dial indicator I still had a slight toe in (to the left) at the back of my fence. The dial caliber immediately revealed it, plus I could see the light between pin and fence when the whole rig was moved from the back of fence to the front.
I don't know if my mind just won't work with a dial indicator or what but using the dial calibers which captured and retained any movement was by far easier to visualize and fix.
I simply adjusted the fence until the dial caliber pin remained in contact with the fence for the entire length of the fence. It was in my opinion far simpler than using the dial indicator.
After it is all said and done I think I still like the remarkably simple method SS suggests. They suggest using a dowel rod in the hole in the mitre gauge. The one thing the dial calibers taught me was to use the smallest rod (wire) I had or to sharpen the dowel rod to a point. By using a very small contact point, parallelex vision errors which can effect your reading, will allow you to see light if/when the rod moves away from the fence.
P.S. I have sworn off ever using my dial indicator again on my SS. In fact I'm about ready to sell the dial indicator at the next garage sale.
Ed
Oh the frustration!
I was using it to check my fence. I don't know how you guys do it but everytime I touch that indicator I get another reading, .001 is a mere addition of one finger of pressure. I actually found touching my hand at various different locations would and did effect the reading.
Finally after convincing myself my fence needed adjusting I gave up with the dial indicator and decided to try dial calibers.
I clamped them to my mitre gauge, in a way that allowed the the movable jaw to move, and using the depth pin measured my fence front and back. I found after all my work with the dial indicator I still had a slight toe in (to the left) at the back of my fence. The dial caliber immediately revealed it, plus I could see the light between pin and fence when the whole rig was moved from the back of fence to the front.
I don't know if my mind just won't work with a dial indicator or what but using the dial calibers which captured and retained any movement was by far easier to visualize and fix.
I simply adjusted the fence until the dial caliber pin remained in contact with the fence for the entire length of the fence. It was in my opinion far simpler than using the dial indicator.
After it is all said and done I think I still like the remarkably simple method SS suggests. They suggest using a dowel rod in the hole in the mitre gauge. The one thing the dial calibers taught me was to use the smallest rod (wire) I had or to sharpen the dowel rod to a point. By using a very small contact point, parallelex vision errors which can effect your reading, will allow you to see light if/when the rod moves away from the fence.
P.S. I have sworn off ever using my dial indicator again on my SS. In fact I'm about ready to sell the dial indicator at the next garage sale.
Ed