Edge finder from a pin chuck.

Easy to make wobbler or edge finder from a standard pin chuck, this does not alter the pin chuck and so it is still available for its original purpose.
Mine is an Eclipse No 160 chuck but others may suit, for the pivot ball just soften a ¼ ball bearing and drill for the arm , soft solder or adhesive to a shaft with your preferred end shape, I have used a .200”dia for both styles as all my equipment is imperial. 4mm would be good also, one barrel or ball shaped for flat surfaces and one parallel for diameters.
I have used this for thirty years and it will repeat to better than .0005”.

Attachment 21148

Olderdan,

Thank you for the tip for using the Eclipse No. 160 Pin Chuck. I have always liked the old UK manufactured Eclipse brand tools and started buying these in the 1960's when these were available in the USA. My favorite was a very small tap wrench with a beautiful mottled-brown finish from the color casehardening process, and ground-finished handles. I think the name for the UK Eclipse company was taken from a famous British racehorse Eclipse from the 18th century that had the saying "Eclipse first and the rest nowhere". Very appropriate for their tools but not sure if the UK company still exists.

Regards,
Paul Jones

Thanks for the idea.
My ignorance made me do a Google search as to what is a "Pin Chuck" :headscratch:
Attachment 21203
Is a "Pin Chuck" and a "Pin Vice" the same thing?:headscratch:
So one will just not use the inserts and if you buy a cheepy you will have to cut off the "Jaws"
Attachment 21204

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Thanks olderdan! We've added your Pin Chuck Edge Finder to our Measuring and Marking category,
as well as to your builder page: olderdan's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="http://www.homemadetools.net/homemade-pin-chuck-edge-finder"> <img src="/uploads/208591/homemade-pin-chuck-edge-finder.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="http://www.homemadetools.net/homemade-pin-chuck-edge-finder">Pin Chuck Edge Finder</a> <span> by <a href="http://www.homemadetools.net/builder/olderdan">olderdan</a></span> </div> <div class="tags">tags: <a href='http://www.homemadetools.net/tag/edge-finder'>edge finder</a> </div> </div> </div> </div>
<!-- END /var/www/html/homemadetools/protected/modules/zeus/views/tool/postUpdate.php -->

My interpretation would be a pin vice as having flat jaws and a pin chuck is for holding round items, if you are to copy mine you need removable collets as in your bottom picture.

Quote:

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Originally Posted by Paul Jones

Olderdan,I think the name for the UK Eclipse company was taken from a famous British racehorse Eclipse from the 18th century that had the saying "Eclipse first and the rest nowhere". Very appropriate for their tools but not sure if the UK company still exist

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Thanks for the background to the Eclipse name, always nice to learn something new.
I think the company is now under the Spear & Jackson name and the quality has gone, I am very fond of my old tools and my favorite tap wrench is a Chatwin from 1944 and is marked with the Uk war dept arrow and is a joy to use.

Attachment 21205
Attachment 21206
If you want real quality tools at reasonable prices you have to go back in time and buy them where you can find them.
Regards
Olderdan

Quote:

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Originally Posted by olderdan

My interpretation would be a pin vice as having flat jaws and a pin chuck is for holding round items, if you are to copy mine you need removable collets as in your bottom picture.

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Pin chuck may be British terminology. Here in the USA, the term pin vise is used for handheld devices that take collets and hold cylindrical items.

As a check, I searched for "pin chuck" on the Micro-Mark (a major supplier of model maker tools) website and got nothing. Searching for "pin vise" produces lots of hits.

A handheld device with flat jaws is usually called a "hand vise" or "jeweler's vise" in USA terminology. Both of those terms return results on the Micro-Mark page.

It's another example of two countries separated by a common language.

Actually, "pin chuck" makes more sense given the use of the word "chuck" with lathes, drill presses, etc. plus the fact that small "pin chucks" are often used to hold small drills in larger chucks that can't close tightly enough to hold the drill directly.

I don't know if Amazon ships to South Africa, but they're not that expensive to buy...

https://www.amazon.com/Wiggler-Cente...ds=edge+finder

unfortunately it appears they do not ship to SA.

I will have a search on AliExpress, they have no problem shipping to SA it only takes about 60 day. :angry:

Looking at the tool again perhaps I can just make the back part and use my small "T" tapping wrench front part and save some time in making the whole tool. :headscratch:

Marv
In the part of the us I live in we always called it a pin chuck

Quote:

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Originally Posted by garage nut

unfortunately it appears they do not ship to SA.

I will have a search on AliExpress, they have no problem shipping to SA it only takes about 60 day. :angry:

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We have the same shipping from the US to Australia problem with Amazon but often if you contact the vendor on their own site they will happily ship to you by 4th class air mail. You should try that option first.

If an item is sent US Post and there is track and trace on the package it will get to Aus within two or three days then most parcels to me recently have taken around 12 days from Sydney to me - a transport speed of less than 100 miles per day. :angry::angry:

Track and trace items from the UK disappear from the system the moment they pass into AusPost's hands and about 30% never arrive. :angry::angry::angry:

AusPosts answer every time is contact the shipper. !@#$%:angry::angry::angry::angry:

And I will not use Fedex. Because we live 400km from the state capital they hand the parcel over to AusPost for untracked delivery but show the item as delivered on their own web site. And they refuse to reply to where is my package emails.

Dear Olderdan,
Seeing this chuck taken apart brings to question the dismantling of these small chucks - do you have any advise on the dismantling of a Yankee Screwdriver Chuck for servicing? Any information on taking these small chucks apart would be most appreciated?
Thank you

I do not have any knowledge of the type of chuck you describe.

Quote:

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Originally Posted by Kressey

Dear Olderman,
Seeing this chuck taken apart brings to question the dismantling of these small chucks - do you have any advise on the dismantling of a Yankee Screwdriver Chuck for servicing? Any information on taking these small chucks apart would be most appreciated?
Thank you

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Your Google-fu is weak. I Googled

yankee screwdriver chuck repair

and got all sorts of info including videos.

Dismantling of a Yankee Screwdriver Chuck
Thank you for suggestions submitted with regard to Google Search.
Have previously searched all links offered in your comment without success of finding any related info on the CHUCK - Info is very informative in dismantling and servicing the Yankee Screwdriver but nothing about dismantling of the chuck ie. Taking the CHUCK apart?
If I have missed something your enlightenment will come as as most appreciated.
Thank you.
Kind Regards,
Kressey
Attachment 23760

Jacobs makes a pin chuck I have one in my tool box. If you need to disassemble a chuck open the 1/2 way and press the outer sleeve off. So if the clamping range of the chuck is from 0- 1/2" open the chuck 1/2 way I usually use a rod the proper dia. and clamp it lightly so you can remove it. Don't beat on with a hammer be gentle

Hello G.Paul,
Thank you for your descriptive explanation.
The chuck is spring loaded and very difficult to hold open.
If this is not too an inconvenience - do you by any chance have any diagrams or pictures for me to see in detail what section is clamped to work it apart?
Thank you for your kind support.

Dismantling of a Yankee Screwdriver Chuck
These chucks are not meant to be user serviceable but having a closer look at the one I have I noticed a small pin fixing the front collar to the chuck body which stops the collar from sliding forwards, this appears to be a blind pin so would need drilling out and replacing with a new one and I am guessing not the easiest thing to re-assemble.
Attachment 23832
I know the urge to repair can border on obsession sometimes (I speak from experience) but these screw drivers are so cheap on Ebay is it worth it?, power tools( namely impact drivers) have made them an unwanted item to most but I still use mine for those stubborn screws.

Quote:

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Originally Posted by Kressey

Hello G.Paul,
Thank you for your descriptive explanation.
The chuck is spring loaded and very difficult to hold open.
If this is not too an inconvenience - do you by any chance have any diagrams or pictures for me to see in detail what section is clamped to work it apart?
Thank you for your kind support.

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I never had one of these chucks apart. I do have one I will look at it and see with what I come up with. The explanation I gave was for Jaycob's or chuck that are copy's of Jaycob's chucks. Jaycob's offers replacement jaws, I have repaired many of them

Dear Oderdan, maybe better to replace - Thank you for considering these dismantling possibilities

Hello G.Paul - will be interesting to hear anything you find out about these chucks - Thank you for your reply.

They are available in South Africa. Try rs-online, takealot.com or The Cape Watch Company online.

Thank you for info.