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Gallery, Projects and General => How to's => Topic started by: fourperf on January 12, 2011, 10:16:46 AM

Title: spin indexer
Post by: fourperf on January 12, 2011, 10:16:46 AM

Hi Guys, would anyone happen to know how many degrees apart the 10 holes are on the vernier plate of a spin indexer?

The outer plate has the 36 holes at 10 degrees apart.

the vernier plate has the 10 holes numbered 0 - 9.

I want to be able to index 360 degrees every degree.

I cant wrap my head around the math.

thanks

Mark

Title: Re: spin indexer
Post by: sbwhart on January 12, 2011, 11:49:51 AM

One

If you put the pin in hole 1 you indexed 1 deg 2 = 2 deg, 3 =3 deg, ------------ 9 = 9 deg back to zero and your on 10 deg.

Hope this helps

Stew

Title: Re: spin indexer
Post by: Lew_Merrick_PE on January 12, 2011, 11:56:45 AM

Mark,

Unless I have missed something critical here, my "spin indexer" has normal 10° increment indexes on the primary index ring and 1° increment indexes on the vernier index ring.  Thus, I start at the 0° position and move to the (say) 20° position -- and then place my index pin in the (say) 5° vernier hole, remove my primary index pin, and rotate the indexer until the vernier pin drops into the next hole.  I have now moved 25° from my initial position.  Your 0° vernier hole should index when the primary index pin is in any of the 10° increments.  My "spin indexer" is old enough that it has 11 holes on the vernier (0°-10° for double-checking).  It is a shop-made tool given to me by a retiring machinist back in the 1960's.  I know that I have used commercial "spin indexers," but my fingers know my own tool best.

Title: Re: spin indexer
Post by: winklmj on January 12, 2011, 01:09:58 PM

Manual here that applies to pretty much all the similar spindexers.

http://www.neme-s.org/Shaper%20Books/Odds%20and%20ends/Spin%20Indexer%20Instructions%20Phase%20II.pdf

Title: Re: spin indexer
Post by: crabsign69 on January 12, 2011, 02:23:29 PM

Quote from: winklmj on January 12, 2011, 01:09:58 PM

Manual here that applies to pretty much all the similar spindexers.

http://www.neme-s.org/Shaper%20Books/Odds%20and%20ends/Spin%20Indexer%20Instructions%20Phase%20II.pdf

I got a blank pdf

Title: Re: spin indexer
Post by: Bernd on January 12, 2011, 08:17:21 PM

Worked OK for me right now 1/112/11 8:15PM

Bernd

Title: Re: spin indexer
Post by: DeereGuy on January 12, 2011, 09:28:57 PM

Worked ok for me also.

Title: Re: spin indexer
Post by: fourperf on January 12, 2011, 10:47:23 PM

thanks guys for the replys.  The holes in the vernier do indeed have to be 1 degree apart but that would overlap them.  I got the answer on cnc zone to make them (the holes in the vernier plate) 11 degrees apart which makes sense to me.

thanks a lot.
Mark

Title: Re: spin indexer
Post by: crabsign69 on January 13, 2011, 02:42:37 PM

it worked for me today but it was not there when i checked it first time.   cool beans man will give it a good reading   thanks  :headbang: