lathe chuck face stop

5 Attachment(s)

Hi All
I thought i would post a method I use to get parts true and parallel which are normally to small a diameter or to thin to be pushed against the chuck face. The chuck back stop was used to help manufacture the spacers for my bead roller in the example below. I have also used these on the mill when using an indexing chuck or dividing head to position the work a the desired height.

The chuck back stops can be simply band sawed to shape from plate.

Attachment 31782

I have two aluminium chuck face stops that I can gang together or add spacers to achieve the desired distance from the chuck face.

Attachment 31783

Spacers fitted to one of the chuck face stops to achieve required distance from chuck face

Attachment 31784

Single stop with work piece ready to be machined. Note the stop simply fits against the chuck face and the work-piece is tapped back against the stop the chuck back stop is unable to leave the chuck while machining as it is not only trapped by the work but also the chuck jaws.

Attachment 31785

Thinner work-piece needing the stop to have spacers attached.

Attachment 31786

Both spacers ganged together. Note the spacers have been left in place but do not interfere with the tool position. In most cases these would be removed to prevent tooling clashing with the over hanging spacers.

I hope this will be of help to some and thank you for viewing
The Home Engineer

Thanks thehomeengineer! We've added your Chuck Back and Face Stops to our Lathe Accessories category,
as well as to your builder page: thehomeengineer's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/homemade-chuck-back-and-face-stops"> <img src="/uploads/227488/homemade-chuck-back-and-face-stops.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="https://www.homemadetools.net/homemade-chuck-back-and-face-stops">Chuck Back and Face Stops</a> <span> by <a href="https://www.homemadetools.net/builder/thehomeengineer">thehomeengineer</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/chuck'>chuck</a>, <a href='https://www.homemadetools.net/tag/stop'>stop</a> </div> </div> </div> </div>

Brilliant!

You just solved an engineering impasse for me.
I have occasion to need chuck stops. The collection at work is best described [not so] kindly as grisly. Horrendous fits even better. I appreciate the idea of an adjustable unit. There isn't any 'production' volume but the couple dozen this-or-thats are held to a reduced tolerance.
Following your pattern I'll tap 5mm to match space blocks, rather like screw on gauge blocks. Very handy little devils. The other arms will get a 5mm screw for height equalization, zeroed on surface plate and height gauge to the space block.
There is a commercial version of these with magnets on the 3 arms. Nothing I hate more than magnets on a locating device.

Congratulations thehomeengineer - your Chuck Back and Face Stops are the Homemade Tool of the Week!

Nice win on a busy week around here!

Some more good builds from this week:

Nut Spinning Method by rgsparber
Sanding Block by Spira Knives
Beam Clamps by Frank S
Chop Saw Stand by Tuomas
Expanding Anchor by rgsparber
Lathe Headstock Extender by Me2
Quick Action Vise by Kwandotechnic
Spreader Bar Extension by Frank S
Oscillating Spindle Sander by Mr.DK DIY
Disc Sander by sandho
Chainsaw Modifications by htavaresportugal
Welder Foot Pedal by Crusty
Sanding Bow by Michael Paley
C Clamp by Kwandotechnic
Rocket Hydraulic Press by jdurand
Sharpie Armor by Making Stuff
Offset Centering Tool by shopandmath
Crucible Tongs by SculptyWorks
Parting Off Blade Holder by xynudu
Welder Mobility Modification by Frank S
Miter Saw Laser Guide by Didpoolhall
Propane Forge by sandho
Bead Roller Dies by thehomeengineer
Kerfmaker by Christofix

thehomeengineer - you'll be receiving a $25 online gift card, in your choice of Amazon, PayPal, or bitcoin. Please PM me your current email address and gift card choice and I'll get it sent over right away.

More importantly, this is your 5th Homemade Tool of the Week win! I've just added the silver wrench-on-pedestal graphic to the awards showcase in your postbit, visible underneath your avatar.

:rocker: :clapping: :thumbsup: :bow:https://www.homemadetools.net/forum/...OfTheWeek2.png:bow: :thumbsup: :clapping: :rocker:

Great job, and you're in excellent company joining these other 5-time winners: rgsparber, rossbotics, Christophe Mineau, Brendon, mklotz, Vyacheslav.Nevolya, brianhw, LMMasterMariner, Tuomas, olderdan, tonyfoale, and Stevohdee.

Here are all of your Homemade Tool of the Week winning tools. Congrats again :thumbsup:

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That also helps when you need to just straighten the ends from many similar parts.

This is a great tool. Thanks!
It will be useful at my workplace too.

Great idea and execution.
Thanks for sharing it.

Brian

Congratulations! I don’t understand what it’s for, but congratulations!

Well Mr Davies, I think homeengineer will agree, this suits primarily lathe work in a chuck, but could help when that chuck is bolted to a mill table etc.
When duplicate parts are needed, it is common to insert a stop inside the lathe spindle, providing they [required parts] of sufficient length to touch stop and protrude from chuck jaws.
Plenty of instances occur when said stop will not reach shorter pieces. The homeengineer's tool uses face of chuck instead to register so small items contact center of spider, which can have a extension [ie a screw] to reach farther yet.
There is point shorts will not chuck reliably parallel and need aligning by other means. Generally this is when they get shorter than equivalent diameter, "under-square" so to speak.