Woodturner's Resource
Woodturner's Resource  
  • Featured Artist    • Websites   Support Wr
Tutorials, Projects & Tips   • Event Calendar   • Tool and Book Store
  Home Page Forum HelpSearch Map TPT Resources LoginRegister
 
Page Index Toggle Pages: 1
Send Topic Print
Vacuum Chuck System... (Read 674 times)
 
John Grace
WR Supporter
*****
Offline


Everyone needs a good
wingman...

Posts: 640

Bel Air, Maryland, USA
Bel Air
Maryland
USA

Vacuum Chuck System...
Mar 24th, 2017 at 11:23am
 
So after asking many, many questions on vacuum chucking I finally broke down purchased the various parts, assembled this past weekend, and did my first vacuum reversing yesterday.

First (the system)...I chose a Frankenstein approach to the various parts choosing the pump offered by Frugal, the milled aluminum chuck offered by Oneway, and the milled aluminum hand wheel and adapter from JT Turning Tools.  Ended up paying close to $100 more than had I settled on any one system but I liked the concept of or the advantages offered by those pieces.

Second (first usage)...The system performed flawlessly and what small errors encountered were I'm sure user error.  Like so many things it's going to be a learning curve with respects to alignment and the best 'order of tasks'.

I'm turning a 11" hickory bowl with matching lid and was pleasantly surprised at how 'sturdy' the piece felt on the chuck.  I kept the tailstock in place until the final 'nub' required removing and the pump created just over 30-millibars of suction.

Thanks to all who offered suggestions and words of encouragement.
Back to top
  

“If history were taught in the form of stories, it would never be forgotten.”  Kipling
 
IP Logged
 
Ralph Fahringer
WR Patron
******
Offline


I'm the "Burly" Man!!

Posts: 713

Ellsworth, Maine, USA
Ellsworth
Maine
USA

Gender: male

PM3520b
Re: Vacuum Chuck System...
Reply #1 - Mar 24th, 2017 at 11:29am
 
So, all in all, the system sucked!! Shocked Shocked Grin Grin

Back to top
  

Originality is the art of concealing your source.
 
IP Logged
 
Ed Weber
WR Global Moderator
WR Patron
*****
Offline



Posts: 4,857

Wilton, California, USA
Wilton
California
USA

Gender: male

JET 1642
Grizzly G0584
Re: Vacuum Chuck System...
Reply #2 - Mar 24th, 2017 at 12:27pm
 
John Grace wrote on Mar 24th, 2017 at 11:23am:
the milled aluminum chuck offered by Oneway,


If you don't already havr one, I would suggest getting a spindle tap.
Quick & easy to make your own chucks of various sizes at mutch less cost.
Back to top
« Last Edit: Mar 24th, 2017 at 1:39pm by Ed Weber »  
 
IP Logged
 
Steve Arnold
Active Member
***
Offline


WR Rocks!

Posts: 135

Burbank, California, USA
Burbank
California
USA

Gender: male

Jet 1640EVS
Re: Vacuum Chuck System...
Reply #3 - Apr 2nd, 2017 at 4:00pm
 
Ed Weber wrote on Mar 24th, 2017 at 12:27pm:
Quick & easy to make your own chucks of various sizes at mutch less cost.


I've only used my spindle tap to thread the 1-¼" hole in a waste block. Is that what you mean when you say that I can make my own chucks with one?
Back to top
  
 
IP Logged
 
Guy Bratt
WR Patron
******
Offline


WR Rocks!

Posts: 939

Richmond, Michigan, USA
Richmond
Michigan
USA

Gender: male

Robust American Beauty
Rikon 70-100
Re: Vacuum Chuck System...
Reply #4 - Apr 2nd, 2017 at 10:32pm
 
Exactly Steve.  Do your waste block then...
1.  Drill a hole clear through
2.  find a PVC plumbing reducer that will fit your waste block.
3.  cut a groove in the waste block to receive the PVC fitting and epoxy it in place.
4.  gasket the business end.  I use foam material from the craft store. 
Your all set.
You can make a few chucks to hold different size bowls.
You'll see mine is made of oak.  Open grain wood like this is not the best to use because they will leak air through the pours.  This is a demonstration chuck to show that issue.
Back to top
« Last Edit: Apr 2nd, 2017 at 10:34pm by Guy Bratt »  

Old, Fat,n Ugly...I shed 100 pounds this year.  Still old.  Still ugly. But what can you do at this age?
You know? If you knew me you'd see my avatar and I really look a lot alike.
 
IP Logged
 
Ed Weber
WR Global Moderator
WR Patron
*****
Offline



Posts: 4,857

Wilton, California, USA
Wilton
California
USA

Gender: male

JET 1642
Grizzly G0584
Re: Vacuum Chuck System...
Reply #5 - Apr 3rd, 2017 at 8:33am
 
Just as in Guy's photo, I've made similar chucks using MDF.
I glue up a blank (maybe 3 layers of 3/4") MDF . I turn to basic size, drill and tap the blank and then flood the threaded area with CA glue. This soaks in and hardens the composite for a long lasting thread. More than one application may be necessary, basically until it won't absorb any more.
Back to top
  
 
IP Logged
 
Bert Delisle
WR Devotee
*****
Offline



Posts: 1,424

Calgary, Alberta, Canada
Calgary
Alberta
Canada

Gender: male

Vicmarc 300
Re: Vacuum Chuck System...
Reply #6 - Apr 3rd, 2017 at 9:43am
 
+1 what Guy states. I too initially went with Oneway vac chucks, don't regret it, but with the tap I now make several specific size vac chucks, like for eggs, or balls, or... or,,,?
I also use a 3/4" to spindle thread adaptor to mount a chuck to use the tail stock to line up a bowl or platter before applying vacuum. Works great and saves time too. Have fun with your new best friend! Thumbs Up
Back to top
  
 
IP Logged
 
Ed Weber
WR Global Moderator
WR Patron
*****
Offline



Posts: 4,857

Wilton, California, USA
Wilton
California
USA

Gender: male

JET 1642
Grizzly G0584
Re: Vacuum Chuck System...
Reply #7 - Apr 3rd, 2017 at 10:01am
 
Bert Delisle wrote on Apr 3rd, 2017 at 9:43am:
+1 what Guy states.


Wish I would have thought of that  Roll Eyes
Oh wait, I did  Undecided
Ed Weber wrote on Mar 24th, 2017 at 12:27pm:
If you don't already havr one, I would suggest getting a spindle tap.
Quick & easy to make your own chucks of various sizes at mutch less cost.

Back to top
  
 
IP Logged
 
Tom Coghill
WR Addict
*****
Offline


Turning, when I am done
with my chores.

Posts: 1,055

Anchorage, Alaska, USA
Anchorage
Alaska
USA

Gender: male

Oneway 2436, 3 HP 220V
Re: Vacuum Chuck System...
Reply #8 - Apr 3rd, 2017 at 3:29pm
 
+1 of what Bert and others have said.  In fact, I was making myself another vacuum chuck last night.  I will be demo'ing vacuum chucking to our local AAW chapter next month.  I plan to promote this type of chuck EVEN IF people don't have a vacuum system.  A LOT of finish work can be done with a padded chuck and a soft touch center.... dang, no photos of that ... yet   Cheesy
Back to top
  
 
IP Logged
 
Dwight Rutherford
Senior Member
****
Offline


WR Rocks!

Posts: 358

Roseville, California, USA
Roseville
California
USA

Gender: male

Jet 1642
Rose Engine
Re: Vacuum Chuck System...
Reply #9 - Apr 3rd, 2017 at 4:58pm
 
A number of the hollow forms I do don't lend themselves to using my vacuum system however like Tom I find I can use the chucks for soft jam chucking when I go to finish the bottoms.
Back to top
  
 
IP Logged
 
Don Stephan
WR Addict
*****
Offline


WR Rocks!

Posts: 1,509

Cincinnati, Ohio, Ohio, USA
Cincinnati, Ohio
Ohio
USA

Gender: male
Re: Vacuum Chuck System...
Reply #10 - Apr 3rd, 2017 at 7:36pm
 
Member of our woodturning group showed me jam chucks he made using high density 2" blue or pink foam from big box store.  I mounted a piece of 1 1/4" thick poplar on the lathe and turned a tenon to fit one or my sets of jaws, then glued a disk of the high density foam to it with Titebond.  The next day I shaped the foam using a spindle gouge and high shear cut.  The foam is soft so it won't mark the inside of a finished bowl, but doesn't seem to slip at all either.  Now I have 5 or 6 with different diameters.  Sorry, don't have any pictures.
Back to top
  
WWW  
IP Logged
 
Steve nix
WR Champion
*****
Offline


WR Rocks!

Posts: 221

Iota, Louisiana, USA
Iota
Louisiana
USA

Gender: male

Grizzly mini, 1642 Jet, s750 Stubby
Re: Vacuum Chuck System...
Reply #11 - Apr 3rd, 2017 at 8:41pm
 
I make mine too.. bought a few 1 1/4 8 TPI nuts, inset them in the block I turned and exopy the in.  Great in expense  vacuum chuck
Back to top
  
 
IP Logged
 
Tom Coghill
WR Addict
*****
Offline


Turning, when I am done
with my chores.

Posts: 1,055

Anchorage, Alaska, USA
Anchorage
Alaska
USA

Gender: male

Oneway 2436, 3 HP 220V
Re: Vacuum Chuck System...
Reply #12 - Apr 6th, 2017 at 3:44pm
 
Follow up on the soft touch I talked about before and threading chucks and the soft touch for the tailstock.  I hope these pictures are worth 1,000 words... because I really don't feel like typing that much  Cheesy

write back with any questions ...
Back to top
  
 
IP Logged
 
Tom Coghill
WR Addict
*****
Offline


Turning, when I am done
with my chores.

Posts: 1,055

Anchorage, Alaska, USA
Anchorage
Alaska
USA

Gender: male

Oneway 2436, 3 HP 220V
Re: Vacuum Chuck System...
Reply #13 - Apr 6th, 2017 at 3:46pm
 
one more ... of a flat plate vacuum chuck I made shown in place.
Back to top
  
 
IP Logged
 
Page Index Toggle Pages: 1
Send Topic Print