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Depth Indicator

Posted: Thu May 18, 2023 8:55 am
by Seezle
Just checking here, but I assume the depth indicator on my 10er has no permanent position - it is relative to the range needed.

So you can use it to find the distance of say, an intended drilling: Setting it to 0 from a beginning drill height and then cranking the quill handle to the intended lowest point, revealing that number.

Conversely, it could be used to define the distance necessary from a specific number; setting the dial to 0 and turning the quill handle to that number depth on the dial and then align the quill depth set stop so it never goes past that point.

Please let me know if this is correct or not, or if there are some cool tricks I am missing.


Quill spring housing.jpg
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Spring and Stuff.jpg
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Re: Depth Indicator

Posted: Thu May 18, 2023 11:07 am
by bainin
I think thats right, its atleast how I use mine. I don't 100% trust that in "free to rotate" mode, it accurately represents plunge depth...so i always
determine the stop on the quill, then lock it down- whatever the number reads.

b

Re: Depth Indicator

Posted: Thu May 18, 2023 12:17 pm
by chapmanruss
Scott,

I noticed in your second picture you have the Collar turned around. It should go on first against the Spring Housing to hold it against the Headstock Casting. The Depth Indicator then goes on held in place by the Retaining Ring. You can see the correct order in the picture below. Having the Collar reversed has the Depth Indicator holding the Spring Housing against the Headstock Casting creating a friction point with the Depth Indicator which should rotate against the Spring Housing which should not rotate.

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Dial Indicator.jpg
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As its name says it is a Depth Indicator. Although it is fairly accurate, I would recommend confirming with reliable measuring for any needed accuracy. For drilling multiple holes to a more precise depth, I would use the Gauge Rod set to the desired depth. The Depth Indicators accuracy depends on it remaining in position as the Quill is extended. The Retaining Ring holds it with enough friction to keep it in place as the Pinion is rotated. If it doesn't turn with the Pinion or "slips" as the Pinion is rotated to extend the Quill than it would be useless. On those Model 10's I have restored that have the Depth Indicator I have not seen any slip on the Pinion Collar during use.

For anyone looking at Scott's pictures above and wondering why yours doesn't have this the Depth Indicator was not on the early Model 10E tools and was a change that included a change of the Spring Housing.

Re: Depth Indicator

Posted: Thu May 18, 2023 3:53 pm
by Seezle
I submit my rework for final grading. Thanks again!

Clampdown Races.jpg
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Re: Depth Indicator

Posted: Fri May 19, 2023 10:57 am
by chapmanruss
A+

The parts are cleaning up beautifully and are looking like new.

Re: Depth Indicator

Posted: Fri May 19, 2023 11:50 pm
by JPG
Do I see a wave washer there? Makes sense!

Re: Depth Indicator

Posted: Sat May 20, 2023 12:55 pm
by chapmanruss
JPG,

It appears you are correct. Scott can confirm. This must have been an addition by someone as it is not original. Out of the 18 Model 10's I have owned that have the Depth Indicator ranging from serial number 25951 to serial number 101291 none have had a wave washer there. None of the Manuals show one either. The oldest 9 Model 10E's I have owned with serial numbers from 1033 to 19541 didn't have the Depth Indicator.

Re: Depth Indicator

Posted: Sun May 21, 2023 11:42 pm
by Seezle
Thanks to all for your help and guidance.

One note: I noticed my headstock has a nib to hold the quill spring housing in place, whereas Russ' posted picture had none. My serial # is 69781. Were there different 10er headstocks that featured this appendage? Was it not necessary?


Nib.jpg
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Re: Depth Indicator

Posted: Mon May 22, 2023 11:30 am
by chapmanruss
Scott,

Good question about the Headstock. I have found 7 versions of the Headstocks for the Model 10's starting with the first being the original Model 10E. The picture I posted showing the Depth Indicator is on a Model 10E (S/N 13153) and the third version of the Headstock. Actually, this Model 10E originally did not have the Depth Indicator but it received a couple upgrades when I restored it. It also now has the Metal Extension Table with the Tailstock for it instead of its original wood Extension Table and second version Tailstock.

The seven Versions of the Headstock and their differences are listed below. The 7 versions do not include some anomalies I have seen in Headstocks.

1 - A Pin used for the Spring Housing (see Picture below), Double Wedge Locks, the Switch Hole is lower than the other Headstock Versions.

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102-48 Pin - spring housing stop.jpg
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All later Headstock versions 2 - 7 have cast on Spring Housing Stops but they vary. All later Headstock have the Switch Hole higher than the 1st version.

2 - Narrow Cast Spring Housing Stop on the top only, Double Wedge Locks.

3 - Narrow Cast Spring Housing Stop on the bottom only, Double Wedge Locks.

4 - Narrow Cast Spring Housing Stops on the top and bottom, Double Wedge Locks with a keyed Quill Lock.

5 - Wide Cast Spring Housing Stops on the top and bottom, Double Wedge Locks with a keyed Quill Lock.

6 - Wide Cast Spring Housing Stops on the top and bottom, Single Wedge Locks. The change to Single Wedge Locks occurred in April 1951.

7 - Wide Cast Spring Housing Stops on the top and bottom, Single Wedge Locks, an access hole behind the Logo/Serial Number Plate was added.

There are some anomalies in Headstocks that have occurred that I cannot explain the reason for. The Picture below is from Serial Number R51466.

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R51466 Headstock.jpg
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This is a 5th version Headstock. That serial number should be a 6th version Headstock and it has the access hole behind the Logo/Serial Number Plate like a 7th version Headstock.

More about the Model 10's can be found in the Thread titled Shopsmith Model 10's What When and Where in the community section and at the link below.

https://forum.shopsmith.com/viewtopic.php?t=23647