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I designed and built this Quick Change Lathe Turret about a dozen years ago. I used it on an 11" Logan model 1955 right up until I sold the lathe. It is able to index in 30 degree increments and holds 4 tools simultaneously. The available tool holders are: Turning, Facing, Boring, Parting, and V-Block. It took quite a bit of time to design and build but was fun and rewarding.
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Beautiful work old_toolmakerQuote:
Originally Posted by old_toolmaker
It was very useful I'm sure and a reward to build
Doug
Hey dick, slick work, the detail is amazing
Stevohdee<
Thank you!
Now that is a rugged/nice looking QCTH!!
Do you have drawings (sketches) for construction?
I am wondering how your eccentric works to grip the dovetail.
and what are those vertical allen screws for on the "corners" ?
Nice project, I'd like to emulate.
Ralph
Ralphxyz,
Thank you for the complement!
Yes, I do have plans for this QCTP Turret. The plans are very detailed and involved with 9 pages of text and pictures plus 16 fully detailed drawings. I will have to get them to Jon for listing on this forum. The vertical allen screws on the corners actuate the locking mechanism for the dovetails. It is actually a cam system which converts vertical movement to horizontal movement. It functions very well and does the job. Thanks for asking!
Thank You Dick, I bought your small QCTP it looks real nice great detailed drawings.
Put me on your list for the larger QCTP.
Ralph
Ralphxyz,
Have you begun work on the small QCTP?
I will be putting the finishing touches on the QC Lathe turret design this coming week.
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Thanks old_toolmaker! We've added your Quick Change Lathe Turret to our Lathe Accessories category,
as well as to your builder page: old_toolmaker's Homemade Tools. Your receipt:
<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="http://www.homemadetools.net/homemade-quick-change-lathe-turret"> <img src="/uploads/217687/homemade-quick-change-lathe-turret.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-quick-change-lathe-turret">Quick Change Lathe Turret</a> <span> by <a href="http://www.homemadetools.net/builder/old_toolmaker">old_toolmaker</a></span> </div> <div class="tags">tags: <a href='http://www.homemadetools.net/tag/lathe'>lathe</a> </div> </div> </div> </div>
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DIYer,
Thanks
Old_Toolmaker, not only are these Eye Candy but the design is quite brilliant, imho. I look forward to Jon posting your plans!
I noticed in pic 3 there is a dowel or gauge pin being used as a stop...is that for using smaller tool bits with out changing the holder setting? Nice idea also if it is.
Sorry on the late show here but so glad I save that email for this!
Thanks Much!
PJ
PJs,
Thank you for the nice complement!
You are correct, the dowel pin is being used as spacer because the tool bit I chose to use is smaller than what the QC Turret was designed for.
No Dick, I have no shop time, I am fighting termite damage this summer.
Possible this winter.
I have a 7x12 mini lathe which I thought the small QCTP would work on.
I also have a 12x36 lathe which I figure your larger QCTP would work on.
Ralph
Those tool posts should work out fine. I have had the small QC tool post on my mini lathe and it works out well. What part of the country do you live? I am assuming you are somewhere in the south with the termite issues. I hope you are able to get them under control.
I am on the eastern end of Long Island NY.
Close to actually putting siding back on the sill has been replaced and framing up 2 feet.
I started by myself Memorial Day this spring.
Ralph
I wondered too, how/ what four-sided cam could be actuated and deliver equal and sufficient clamping at each side; tough! Then, a single cam is less desirable for changes by disturbing unintended holders. Your solution is far more effective and sensible. The turret feature makes this stellar! This can really generate parts, do you use a DRO? Had you ever tested the repeatability? About the Vee'd holder; the horizontal aspect is obvious, what did you expect from the vertical? That might be a holder missing from all the commercial QC sets...and an opportunity...
And the dowel. Beside solving height of a small bit, it cures my issue about QCTPs. It can shed chips collecting on the post and disturbing intended centerline adjustments.
Congratulations old_toolmaker - your Quick Change Lathe Turret is the Homemade Tool of the Week!
Big week around here! Lots of traffic (our 2nd biggest week ever), and an unusual amount of high quality homemade tools, many of which could've won on many other weeks.
Some good picks from this week:
Balanced Lathe Dog by natie123
Drill Press Grinder Attachment by Tuomas
Boilover Prevention Tool by Christophe Mineau
Angle Plates by rossbotics
Edge Finder by threesixesinarow
Stitching Clamp by Christophe Mineau
Counterbore Cutters by olderdan
Stitching Awls by Christophe Mineau
Countersink Stand by Shelly142
Stitching Extension Clamp by Christophe Mineau
Forge by celsoari
old_toolmaker - we've added your tool entry to our All Homemade Tool of the Week winners post.
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.
Most importantly - this is your 3rd Homemade Tool of the Week win! You join these other 3-Time Homemade Tool of the Week winners: rgsparber, rossbotics, mr95gst, Paul Jones, Christophe Mineau, Captainleeward, immortalx, scorch, Brendon, Frank S, mklotz, Vyacheslav.Nevolya, brianhw, LMMasterMariner, jjr2001, Tuomas, olderdan, tonyfoale, Mikhandmaker, thehomeengineer.
You'll notice the 3-Time Homemade Tool of the Week award trophy graphic in your postbit beneath your avatar.
https://www.homemadetools.net/forum/...OfTheWeek3.pnghttps://www.homemadetools.net/forum/...eWeekIcon3.png
Here are all of your winning tools:
<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/forum/axa-qc-tool-post-cross-drilling-milling-attachment-68668#post114145"> <img src="/uploads/215740/homemade-qctp-drilling-milling-attachment.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/forum/axa-qc-tool-post-cross-drilling-milling-attachment-68668#post114145">QCTP Drilling Milling Attachment</a> <span> by <a href="https://www.homemadetools.net/builder/old_toolmaker">old_toolmaker</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/qctp'>QCTP</a> </div> </div> </div> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/forum/carbide-insert-dovetail-chamfer-cutters-68873#post114782"> <img src="/uploads/216297/homemade-carbide-insert-cutters.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/forum/carbide-insert-dovetail-chamfer-cutters-68873#post114782">Carbide Insert Cutters</a> <span> by <a href="https://www.homemadetools.net/builder/old_toolmaker">old_toolmaker</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/cutter'>cutter</a> </div> </div> </div> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="https://www.homemadetools.net/forum/quick-change-lathe-turret-69486#post117079"> <img src="/uploads/217687/homemade-quick-change-lathe-turret.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/forum/quick-change-lathe-turret-69486#post117079">Quick Change Lathe Turret</a> <span> by <a href="https://www.homemadetools.net/builder/old_toolmaker">old_toolmaker</a></span> </div> <div class="tags">tags: <a href='https://www.homemadetools.net/tag/lathe'>lathe</a> </div> </div> </div> </div>
Ralphxyz,
Just an FYI.
I sent the plans to Jon. After he gets them refined they will be posted for sale.
Congratulations Dick on your third, stunning tool of the week award. Thank you also for creating the plans for these. Mighty fine work!
PJ
Toolmaker51,
Those are all good questions!
Yes, I do use a DRO. Repeat-ability is within a few tenths on each tool. About the vertical Vee:I just put that in there on the off chance it might be useful. I use a vertical milling head on my lathe so sometimes it is handy to have it there when I need to drill a vertical hole through a shaft and I need the additional clearance. Although I have not used it much.
I'll be your first customer!!
Make sure and let me know when available!
Ralph
Me too, I picked up the mini carriage lock and the tailstock offset plans the other day! Great plans Thanks!Quote:
Originally Posted by Ralphxyz
PJs,
Thanks PJs!! The plans will be available soon. HMT's is assembling them.
beautiful, my works sucks now.
That locking mechanism sounds very interesting. I was trying to figure out where the plunger or moving dovetail was in the pictures.
It is amazing to see the condition of the tool holders, the ones at work end up taking a beating. It is nice to see tools in such beautiful condition.
Quote:
Originally Posted by old_toolmaker
wizard69<
Thank you. This quick Change tool post has not seen a lot of work since it was built as I do not own a lathe large enough to suit the tool post at this time.
