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View hkinkade's profile

Custom Indexer, Suggestions

by hkinkade
posted 08-15-2016 12:45 PM


4 replies so far

View Wildwood's profile

Wildwood

2656 posts in 2528 days


#1 posted 08-16-2016 12:49 PM

Using an index wheel all about degrees between holes depending upon what you want to achieve. Here is just one sample of homemade index wheel but at the end show some pretting outstanding photos on how to do things with more than an index wheel.

http://ocwoodworkers.com/upload/uploads/Indexing%20wheel.pdf

Other nice info:

Index – 20 different Even Combinationsby degrees.
(Even more options by skipping holes.)
2 hole pattern = 180° between holes
3 hole pattern = 120° between holes
4 hole pattern = 90° between holes
5 hole pattern = 72° between holes
6 hole pattern = 60° between holes
7 hole pattern = 51.4° between holes
8 hole pattern = 45° between holes
9 hole pattern = 40° between holes
10 hole pattern = 36° between holes
12 hole pattern = 30° between holes
14 hole pattern = 25.7° between holes
15 hole pattern = 24° between holes
16 hole pattern = 22.5° between holes
18 hole pattern = 20° between holes
20 hole pattern = 18° between holes
24 hole pattern = 15° between holes
30 hole pattern = 12° between holes
36 hole pattern = 10° between holes
48 hole pattern = 7.5° between holes
60 hole pattern = 6° between holes

-- Bill

View Woodknack's profile

Woodknack

12810 posts in 2773 days


#2 posted 08-16-2016 05:11 PM

I believe my Delta has a 60 and 24. In the instructions it tells how to use both for all kinds of combinations but I’ve never used them. My Nova has a 12 point index. Can’t remember if my Craftsman had an index or not.

-- Rick M, http://thewoodknack.blogspot.com/

View MrUnix's profile

MrUnix

7388 posts in 2592 days


#3 posted 08-16-2016 06:52 PM

I guess I never really looked, but I’m surprised the PM90 doesn’t already have indexing capability. The PM45 has an indexing wheel built into the headstock, and offers 60 positions. My little Delta has indexing holes built into the drive pulley and offers 60 positions on the outside row (6 degrees apart), and 8 positions on the inside (45 degrees apart).

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View hkinkade's profile

hkinkade

3 posts in 1043 days


#4 posted 08-17-2016 02:52 AM

Mr UNIX, nope no indexer fro the PM 90.

I’m now leaning towards a single row of indexing holes. I can put two rows in, but it’s going to be some tight machining to do this. So my preference is a 60 hole option. If I need something else for a specific project I’ll have to rig a add on feature. 60 hole seems to give a good selection of patterns:

1,2,3,4,5,6, ,10, 12, 15, 20, 30, 60

I’m a little concerned that 7,8,9 segments would be useful for many applications, but my crystal ball is good enough to tell me otherwise with certainty ;-)

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