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projectnut
12-23-2012, 01:13 PM
Several years ago I bought a used Phase II Spin Indexer for 5C collets. I've used it several times by just clamping it to the mill table and indicating the part in. Last week I needed to use it for a part about 6" in diameter. No problem I thought, just clamp it in the vise to get the extra hieght.

That's when the trouble started. I noticed it didn't look remotely square to the table so I got out the calipers to do a little mesuring. All was well with the front side and the bottom of the base. The left, right and rear sides however were out of square by as much as .040. I ended up facing 3 of the 4 sides to bring them into parallel and square with the front and bottom surfaces.

My question is has anyone else had a similar experience? I had just "assumed" the base was supposed to be square with the front surface. I'm sure the indexer hadn't been modified by the previous owner since all the sides that needed machining still had the original epoxy paint. It apparently came from the factory out of square.

Ohio Mike
12-23-2012, 01:22 PM
Yes, they're all that way. Well ok, not the ones from Suburban Tools, but who here can afford a $700 spindex. Do keep in mind they are designed to be a grinding fixture. There have been at least two articles in HSM and/or Machinist Workshop magazines on making these types of upgrades to the import spin indexers. I can't remember which, as I subscribe to both. By the way the Phase II is really a great indexer just wish it came with a tail stock.

Jaakko Fagerlund
12-23-2012, 04:55 PM
I would not trust any surface that has paint on it to be accurate in any dimension.

demerrill
12-23-2012, 08:32 PM
I liked this approach: http://www.chaski.org/homemachinist/viewtopic.php?f=24&t=92143

David Merrill

dp
12-23-2012, 10:26 PM
I liked this approach: http://www.chaski.org/homemachinist/viewtopic.php?f=24&t=92143

David Merrill

I didn't read the text but I also didn't see in the pictures where the poster indexed any surface to the bore??? There's at least one other spindexer article where the poster put a bar through the bore and aligned every operation around that.

outback
12-23-2012, 10:36 PM
Another, How to rebuid a 5C Spin Indexer.

http://www.chaski.org/homemachinist/viewtopic.php?f=4&t=88211&hilit=spin+indexer

Jim

Toolguy
12-23-2012, 10:41 PM
I just used the spindle itself sitting on 123 blocks with an angle plate clamped to the base and ground the sides parallel and the same height. This makes the base parallel to the spindle with the spindle centered on the base. No measuring required. I didn't worry about making it a specific width. If you want a specific width, get both sides equal then subtract half the desired amount of material from each side using the same setup.

http://i1051.photobucket.com/albums/s433/wmoore5/spin%20jigs/IMG_1201_zps3fd19d01.jpg

http://i1051.photobucket.com/albums/s433/wmoore5/spin%20jigs/IMG_1205_zps6200cd19.jpg

http://i1051.photobucket.com/albums/s433/wmoore5/spin%20jigs/IMG_1206_zpsd4aef6fe.jpg

http://i1051.photobucket.com/albums/s433/wmoore5/spin%20jigs/IMG_1202_zpse5c3720e.jpg

Highpower
12-24-2012, 06:35 AM
I slipped a ground lathe test bar into a collet and fit a bushing into the rear of the spindex spindle to indicate in both ends of the test bar. Then set it up between centers on the mill and leveled the bottom of the base. I was somewhat surprised to find that it was flat and straight to the bore within .0005". (Phase II)

The first cuts along the sides only removed paint and bondo. (More than I expected.) Once down to bare metal the sides were out by .002" - .003". I didn't bother with cutting the front/rear/top edges of the base. I normally just clamp it in the vice parallel to the table and move on.

http://img.photobucket.com/albums/v82/Highpwr/Shop%20Projects/Spindexset-up_reduced.jpg

oldtiffie
12-25-2012, 04:45 AM
Yes, they're all that way. Well ok, not the ones from Suburban Tools, but who here can afford a $700 spindex. Do keep in mind they are designed to be a grinding fixture. There have been at least two articles in HSM and/or Machinist Workshop magazines on making these types of upgrades to the import spin indexers. I can't remember which, as I subscribe to both. By the way the Phase II is really a great indexer just wish it came with a tail stock.

I think you will find that Phase 11 like Vertex and a few others - clones included - tail-stocks are all pretty well generic and alike - as it the height-adjustable tail-stock and should fit a generic "Spindexer" .

http://www.machineryhouse.com.au/R013

Ohio Mike
12-25-2012, 10:58 AM
Interesting that you mention a site in Australia. What I've noticed is the 5c spindex and tail stock set (or at least the option for a set) seems to be common "over seas" but here in the US they're almost non existent. I have less than $80 in the Phase II setup from Enco after the discounts. The last time a priced it the tail stock would cost almost that from Arc Euro once I paid to get it here. The tails stocks I've seen for the 5c indexers all look like this model.

Scroll all the way to the bottom...
http://www.arceurotrade.co.uk/Catalogue/Collets/ER-Collet-Fixtures

Toolguy
12-25-2012, 12:24 PM
You can get that set here for around $80 + shipping on Ebay. I bought 2 sets of them and made a special fixture of one set. They are plenty good enough quality for most things.

http://i1051.photobucket.com/albums/s433/wmoore5/spin%20jigs/IMG_1184_zps68bf12da.jpg

http://i1051.photobucket.com/albums/s433/wmoore5/spin%20jigs/IMG_1188_zps9eddf595.jpg

The holes in the alum. are spaced on 3/4 intervals and 1-1/2 on the spin jig parts. The 123 blocks on the ends are an easy setup to level and also keep the ends from bowing down when the tailstock is tightened. If your Z is limited, you can put this flat on the table to save space. You can make holes or a slot down the middle of the alum. for T slot bolts and alignment pins. You can shim one end to make tapers on the top side or leave it level and set it at an angle to do tapers on the side.

oldtiffie
12-25-2012, 08:26 PM
Interesting that you mention a site in Australia. What I've noticed is the 5c spindex and tail stock set (or at least the option for a set) seems to be common "over seas" but here in the US they're almost non existent. I have less than $80 in the Phase II setup from Enco after the discounts. The last time a priced it the tail stock would cost almost that from Arc Euro once I paid to get it here. The tails stocks I've seen for the 5c indexers all look like this model.

Scroll all the way to the bottom...
http://www.arceurotrade.co.uk/Catalogue/Collets/ER-Collet-Fixtures

Thanks Mike. I looked and looked for those items on the ArcEuroTrade web site and missed them.

Here are the specs from the web site for the "John Stevenson" Spindexer:

http://www.arceurotrade.co.uk/Catalogue/Collets/ER-Collet-Fixtures

Specifications:

•Spindle Centre Height: 70mm
•Min. Indexing Angle: 1°
•Indexing Accuracy: ± 4’
•Parallelism of Centre Line to Base: 0.02mm
•Radial Run-out of Spindle: 0.02mm
•Overall Dimensions: 255x128x134mm

They are the reason I bought mine (Australia) from ArcEuroTrade (UK). It was expensive but worth it and mine is within the specs (often quite a bit better) as far as I could check it.

I should have bought the tail-stock as well - I think I will.

My Spindexer is very good - I use it as my "go to" spindle for end milling cutter and the like grinding.

.RC.
12-25-2012, 08:33 PM
Interesting that you mention a site in Australia. What I've noticed is the 5c spindex and tail stock set (or at least the option for a set) seems to be common "over seas" but here in the US they're almost non existent.

They are virtually non-existent here as well....

oldtiffie
12-25-2012, 08:40 PM
A tail-stock for a "Vertex" or "Phase 11" 6" rotary tables should probably do the job - there should be no shortage on the web.