Hi John.... Seems to me I got the idea for the inverted flex board from one of your posts, so I certainly can't claim credit for it. I haven't had much time to play with it lately, but it sits there on my bench calling my name to sink a few hours of time into it...time I should be spending on other things <GRIN>
I'll have to give the drill rod a try....first I'll have to get a collet to fit. Royce -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of John Kaufman Sent: Wednesday, March 19, 2003 1:27 PM To: [EMAIL PROTECTED] Subject: Re: ShopTalk: Straightness finder Hi Royce, I've been playing around with a spin indexer for some time and it's really a neat piece of test equipment. I just saw one in Enco's catalog for just under $29. Since standard collets only come in 64th inch steps I've run into shafts I just can't clamp. Most work however. I tired measuring run out with a dial indicator and didn't have much luck. The spring in the indicator bends the shaft a whole lot. I removed the internal spring and even the weight of the little pointer was sufficient to bend the shaft. (this is the reason I never felt the bend of the average shaft had any effect on performance). I tried measuring the bend with a laser but wasn't too successful. Now I just use a vernier height gauge placed next to the tip of the shaft and try to eyeball the movement. It probably would hurt to put a piece of drill rod in the indexer to be sure the indexer itself doesn't have any runout (how good could it be for $29?). Cheers, John K ----- Original Message ----- From: Royce Engler <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, March 19, 2003 6:43 AM Subject: RE: ShopTalk: Straightness finder > If you want to get real precise, here's another solution....get a Spin Index > from Wholesale Tools (1709-0010) and a 5C collet to fit the shaft. Chuck > the butt end and rotate the spin index, and you'll see the runout on the > tip. Mount a dial indicator at the tip to actually measure it. The catalog > says $49, but I paid about $30, plus $10 for the collet. You'll need > different collets for steel and graphite shafts.... 0.6 inches isn't nearly > as exact for shaft manufacturers as it is for machinists. > > Royce > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] > Sent: Tuesday, March 18, 2003 2:13 PM > To: [EMAIL PROTECTED] > Subject: RE: ShopTalk: Straightness finder > > > In a message dated 3/18/2003 12:00:04 PM Eastern Standard Time, "Greg > Zachmann" <[EMAIL PROTECTED]> writes: > > >Hi Tedd, > Actually it was residual bend I > >would want to measure. >> > >> > Gregg, Get two vee blocks, one for each end of the shaft and put a dial > indicator in the center. When you rotate the shaft the indicator will read > the amount of runout or bend. > Frank > >> > >-----Original Message----- > >From: [EMAIL PROTECTED] > >[mailto:[EMAIL PROTECTED] Behalf Of Childers, Tedd A > >Sent: Tuesday, March 18, 2003 11:23 AM > >To: '[EMAIL PROTECTED]' > >Subject: RE: ShopTalk: Straightness finder > > > > > >Greg, > > > >The device Corey designed finds the residual bend in steel shafts (and > >snip > > > > > > > >
