On Thursday 29 October 2015 16:14:56 Bruce Layne wrote:

> Gene:  The point I may have understated in my previous post is that I
> think getting a few more ER20 TTS compatible collet holders will be
> your biggest bang for the buck.  When you only have one, you are
> missing the two big advantages of the TTS system - quick tool changes
> and repeatable Z heights.  If you need to disassemble the ER20 collet
> holder, pull out the collet, change the tool and reassemble, you have
> very slow tool changes and you need to reset the Z height each time. 
> When that's the case (what a hassle!), it matters little whether you
> loosen the drawbar with a wrench, an impact wrench or a pneumatically
> actuated power drawbar.  Compared to mucking around with a single ER20
> collet holder, the drawbar is by far the easiest part of that overall
> problem.  ER20 TTS collet holders are like divorces - they cost a
> lot... because they're worth it!
>
The only divorce I ever got sure was worth it, even if it did cost me 
about $40k.  Turns out she had been playing games with the IRS, she 
didn't have that sort of money, so I was garnisheed for about 2 years.

As has been said, that was the screwing I got for the screwing I got. :(

Still trying to conjure up an automatic tool catcher since I don't have 
the magic spell (or a vitamin supplement) that will grow at least 1 more 
arm.  Them are as scarce as round tuits in these here parts. :(

But I do have repeatable Z heights now, I have stop collars on the tools 
in use ATM.  That has simplicated things a WHOLE bunch.

  
> On 10/29/2015 11:42 AM, andy pugh wrote:
> > If you make your own cylinder it actually all gets a bit simpler.
> > http://www.cnczone.com/forums/vertical-mill-lathe-project-log/109301
> >-cnc.html (There is a link at the bottom to a video of it in action)
>
> Considering that I spend 99% of my time online, reading about CNC
> conversions and watching machining videos, and only about 1% of my
> time in the shop, it's a true tragedy that I didn't encounter your
> solution to my power drawbar problem sooner.  I'm a do-it-myself kinda
> guy, usually to a self destructive degree, so I naturally thought
> about making a custom air cylinder.  Sanity prevailed and I figured
> SMC has forgotten a hundred times more than I'll ever know about
> making an air cylinder, but I didn't take the concept far enough.  The
> project makes a lot of sense when the air cylinder part of the overall
> integrated drawbar mechanism.  Very nicely done, sir!  I'll try to
> keep that concept in my old brain in case I ever need to do this type
> of project again.
>
> I saw where 3D printers can now print a flexible rubbery material. I
> need to 3D print a rubber bracelet with an embossed "WWAPD?" (What
> Would Andy Pugh Do?) as a reminder to check first before I start any
> shop project.
>
> On 10/29/2015 01:18 PM, Jonathan Blissett wrote:
> > You can ask the seller to put the groove in the toolholders - I did
> > and it was still cheap. I've used them to convert an X3 mill. Some
> > pictures and a video here:
> >
> > http://www.mycncuk.com/threads/7656-X3-mill-with-rails-ATC-new-motor
>
> That's a very impressive X3 conversion.  A 16 position ATC?!?  Wow! I
> think you'll know you've finished that CNC conversion when you realize
> there is not a single piece of the X3 remaining!
>
> Your signature line:
>    Old router build log here
> <https://www.google.com/url?q=http://www.mycncuk.com/forums/router-bui
>ld-logs/2288-1-7*0-74*0-4m-mill-router-building.html&sa=U&ei=IgiJUruTAq
>Op0QWP8IHYBA&ved=0CAcQFjAA&client=internal-uds-cse&usg=AFQjCNHzK2eBjyDN
>kvNNpkDkbrSId58P1w>. New router build log here
> <http://www.mycncuk.com/forums/router-build-logs/6484-sufficiently-str
>ong-machine.html>. Lathe build log here
> <https://www.google.com/url?q=http://www.mycncuk.com/forums/lathe-buil
>d-logs/4497-micro-lathe-zero-backlash*-conversion.html&sa=U&ei=hgiJUuS9
>N9TwhQfK0YCIDg&ved=0CAcQFjAA&client=internal-uds-cse&usg=AFQjCNHAN7QLXF
>2OU7rMv2VFcEqpE3Ccnw>. Electric motorbike project here
> <https://www.facebook.com/UoNElectricMotorbike>.
>
> You may be my long lost twin.  I built a 2'X4' CNC router but have a
> 2'X2' CNC router to build.  It's a big pile of parts in my shop.  I
> also have a CNC mill conversion and a CNC lathe conversion (even
> though I already build a CNC mini lathe from a little Sherline lathe
> that's surprisingly capable for the small stuff).  I haven't touched
> my CNC projects all summer but I'm about to get back to them.  I just
> spent the last couple of days imagineering an electric bike, but mine
> is a 2WD 2KW electric bicycle, unlike your fabulous 50KW electric
> motorcycle.
>
>
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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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