Stevenson Indexer

[sbwhart]

Hi Gordy

The C spanner that came with mine is on the small size also I think it must be for a smaller ER system, I'd already got a ER32 spanner so I was OK.

I'll post a few pics over the weekend on how to use the vernier.

Cheers
Stew

[sbwhart]

Hi Gordy

Her's a pic of ER32 spanners:- the one on the left came with the Indexer its a bit on the small size and hardly fit the nut, the one on the right came with some other ER32 kit I bought and work a lot better you can get a bit of beef on it. May be worth giving Arc a call and query the spanner you've got.



OK this is how I think the vernier works

This pic shows the indexer set up at 35 deg:- peg in five hole, arrow between 3 and 4.



This pic show the indexer set up at 40 deg:- peg in zero hole, arrow on 4.



Hope this helps

Stew

[HENNEGANOL]

Stewart,

I have an indexer similar to yours however I can't remember where I bought it.  Reading thro' back issues of Model Engineer's Workshop plus reading the posts on here,  prompted me to have closer look at it.  I haven't actually used it to date, it was bought originally to enable me to index brake shafts for Fordson Major tractors, which were required by a friend of mine who has since had them made by a local engineering firm.

Comparing it to the photos you have posted the first thing that struck me is that the numerals are clockwise whilst yours are anti clockwise and are much clearer.  The other anomaly is that on mine in order for the main graduations to align with the datum the pin has to be inserted in the 7 degree hole!  So the original datum needs to be ground out and a new datum added.

I must confess that up until reading your post and the link to "Bogstandards" post I had assumed that the indexer was fit for purpose.  Thankyou for opening my eyes, I will now examine it very closely to establish exactly how accurate it is and modify it accordingly to enabl me to use it with confidence.

Gerald

[GordTopps]

Hi Stew
This is the "C" spanner that came with the Stevenson Indexer, the size is marked 28-32 and the collar dia is 53.8mm.



This is the 'C' Spanner that came with my ER32 collet set it is marked 45-52 and the collar dia is 50.0mm.



This is a pic with the ER32 wrench that I ordered at the same time as I ordered the Collet set.



Really glad I ordered this one!

Have contacted Ian at Arc and am awaiting reply.

Gordy

[sbwhart]

When I bought the indexer Arc didn't have the tail stock in store, they got them in a few weeks ago so I got one.



I unpacked it the other day and checked it out and this is what I found.



It was a good 8 mill under the centre line of the indexer, so gave Arc a ring and they were very apologetic and ask me to return it and they would refund me, there was no argument from them. So I went to pack it up and then I remembered, I'd added this to the bottom of the indexer.



  and double 

With great embaresment I rang them back and explained my mistake.

Everything lined up fine on the mill.

So decided to fix an alignment bar and to drill some clamp holes to the tail stop.

First job mark up the centre line I used the same method as i used on the indexer.



Then set it up on the mill and clocked it up so the bore was square.



And skimmed a datum edge.



Then with a clamp bar through the bore clocked the datum edge up square. Ran a clock over the flat face and it was fairly level good enough for function.

Then using the scribed centre lines drill and tapped M6 for the register bar, and drilled 10mm for clamp bolts.



I made the register bar again a nice fit in the T slots, but ran out of shed time, so I'll finish it off tomorrow.

Have fun

Stew

[bogstandard]

 

You're losing it lately Stew, maybe you should get your old job back, rather than retirement. 


John

[Darren]

I unpacked it the other day and checked it out and this is what I found.



It was a good 8 mill under the centre line of the indexer, so gave Arc a ring and they were very apologetic and ask me to return it and they would refund me, there was no argument from them. So I went to pack it up and then I remembered, I'd added this to the bottom of the indexer.



  and double 

With great embaresment I rang them back and explained my mistake.

Everything lined up fine on the mill.

Be careful Stew, any more of this and they'll be taking your toys away  


Nice work, you are making me want to run out and buy one now ....  

[sbwhart]

Finished the tail stop off and tried it out for alignment.



Spot on 

Was going to take some more pics but the battery went flat. 

Have fun

Stew

[John Stevenson]

Was going to take some more pics but the battery went flat. 

Have fun

Stew

What shape should it be ?

John S.

[sbwhart]

Was going to take some more pics but the battery went flat. 

Have fun

Stew

What shape should it be ?

John S.

Ho you are a wit

 

Nice one john 

Stew