Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Mon Nov 25, 2024 3:31 am


All times are UTC - 5 hours


Forum rules


Be nice, no cussin and enjoy!




Post new topic Reply to topic  [ 16 posts ] 
Author Message
PostPosted: Sat Sep 25, 2021 11:51 am 
Offline
Contributing Member
Contributing Member

Joined: Tue Dec 17, 2013 10:52 pm
Posts: 3071
First name: Don
Last Name: Parker
City: Charleston
State: West Virginia
Zip/Postal Code: 25314
Country: USA
Focus: Build
Status: Amateur
I thought I would show a recent, very handy, addition to my shop: A Wilton Pow-R-Arm, specifically a Junior Pow-R-Arm No. 343. If you get a bit frustrated with work positioning, maybe this will be of use to you. Here are a few photos of just the Pow-R-Arm:

Attachment:
Pow-R-Arm 1.JPG


Attachment:
Pow-R-Arm 2.JPG


A Wilton Pow-R-Arm is an industrial work positioning assistance aid. Think of it as a heavy duty carving vise stand. Many of you are familiar with the various models of work holders made by Panavise, the Veritas Carver’s Vise, etc. This is similar in function, but a lot heftier than most other options. Essentially, it has a mounting plate attached to a trailer hitch ball mount. A clutch mechanism grabs and (mostly) immobilizes the ball mount. Anything you attach to the mounting plate can be positioned in whatever ways the travel of the ball mount allows. It can rotate 360 degrees and tilt up to 90 degrees (depending on mounting obstacles).

I have my Pow-R-Arm mounted to a plywood base that bolts to my workbench (as do all of my vises, so that I can remove them when not in use). In order to provide a strong base for quickly switching out items that can attach to the Pow-R-Arm, I attached a ¼” x 4” x 12” steel plate to the Pow-R-Arm, with two mounting holes spaced 6” apart:

Attachment:
Transition Plate 1.JPG


Attachment:
Transition Plate 2.JPG


This allows me to mount things like a plate carving workboard, and position it however I like (within reason):

Attachment:
Workboard 1.JPG


Attachment:
Workboard 2.JPG


Attachment:
Workboard 3.JPG


Attachment:
Workboard 4.JPG


More in the next post.


You do not have the required permissions to view the files attached to this post.



These users thanked the author doncaparker for the post (total 2): Michaeldc (Sat Sep 25, 2021 11:57 am) • DanKirkland (Sat Sep 25, 2021 11:56 am)
Top
 Profile  
 
PostPosted: Sat Sep 25, 2021 11:56 am 
Offline
Contributing Member
Contributing Member

Joined: Tue Dec 17, 2013 10:52 pm
Posts: 3071
First name: Don
Last Name: Parker
City: Charleston
State: West Virginia
Zip/Postal Code: 25314
Country: USA
Focus: Build
Status: Amateur
Here are a few more workboard positioning photos:

Attachment:
Workboard 5.JPG


Attachment:
Workboard 6.JPG


I also put together a spacer bar:

Attachment:
Spacer Bar.JPG


This allows me to mount my molds to the Pow-R-Arm, like this:

Attachment:
Mold 1.JPG


Attachment:
Mold 2.JPG


Attachment:
Mold 3.JPG


Attachment:
Mold 4.JPG


The stability of the Pow-R-Arm is just right. I can really lean into it (or, to quote the great philosopher Dolemite, “put my weight on it”) and get it to move without releasing the clutch, but for normal carving or sanding pressure, the work stays put.

One weakness of the Junior model is that the mounting plate attaches to the ball mount with a single bolt, so you have to limit your rotational force to clockwise movement only, or else that bolt comes loose. But I don’t have any trouble with that one limitation.

The Pow-R-Arm has been a real blessing. As I get older, I really don’t like bending over my work; I would rather tilt the work. This lets me do that pretty easily.

I hope this is useful to some of you. Let me know if you have any questions.


You do not have the required permissions to view the files attached to this post.



These users thanked the author doncaparker for the post (total 3): Ernie Kleinman (Sun Sep 26, 2021 11:25 am) • Robbie_McD (Sat Sep 25, 2021 4:42 pm) • Michaeldc (Sat Sep 25, 2021 11:57 am)
Top
 Profile  
 
PostPosted: Sat Sep 25, 2021 12:06 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Feb 20, 2008 7:15 pm
Posts: 7380
First name: Ed
Last Name: Bond
City: Vancouver
Country: Canada
Focus: Build
Status: Professional
That looks fairly handy!


Top
 Profile  
 
PostPosted: Sat Sep 25, 2021 12:56 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Wed Oct 08, 2008 11:36 am
Posts: 7376
Location: Southeast US
City: Lenoir City
State: TN
Zip/Postal Code: 37772
Country: US
Focus: Repair
Nice. Wilton makes good tools.

_________________
Steve Smith
"Music is what feelings sound like"


Top
 Profile  
 
PostPosted: Sat Sep 25, 2021 1:14 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sun Mar 06, 2011 12:04 am
Posts: 5821
First name: Chris
Last Name: Pile
City: Wichita
State: Kansas
Country: Good old US of A
Focus: Repair
Status: Professional
Quote:
Nice. Wilton makes good tools.


Yes, indeed. Wilton is a long time respected name in fabrication and machine shops across the world for their vises and workholding solutions.

_________________
"Act your age, not your shoe size" - Prince


Last edited by Chris Pile on Sat Sep 25, 2021 2:33 pm, edited 1 time in total.

Top
 Profile  
 
PostPosted: Sat Sep 25, 2021 2:21 pm 
Offline
Contributing Member
Contributing Member

Joined: Tue Dec 17, 2013 10:52 pm
Posts: 3071
First name: Don
Last Name: Parker
City: Charleston
State: West Virginia
Zip/Postal Code: 25314
Country: USA
Focus: Build
Status: Amateur
I can also attach my neck carving jig to it, and it provides enough stability for carving and sanding. However, the longer an item you attach to the Pow-R-Arm, the more leverage you have to move the item, despite having the clutch fully engaged. So, if you get one of these, be mindful of the need to center long things on the mounting plate, and don't have unreasonable expectations about stability. If you need something to be the Rock of Gibraltar, a normal vise would provide more stability, but provide less positioning freedom.


Top
 Profile  
 
PostPosted: Sat Sep 25, 2021 4:53 pm 
Offline
Koa
Koa
User avatar

Joined: Fri Jun 22, 2007 11:14 am
Posts: 1028
Location: Newland, North Carolina
First name: Dave
Last Name: Ball
I use a "Jerry Rig" carvers vise with a vacuum chuck on it to do basically the same thing. Super handy to have around...


You do not have the required permissions to view the files attached to this post.


Top
 Profile  
 
PostPosted: Sat Sep 25, 2021 8:34 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Thu May 20, 2010 11:20 pm
Posts: 502
Location: Kurtistown, Hawaii
First name: Bob
Last Name: Gleason
City: Kurtistown
State: Hawaii
Zip/Postal Code: 96760
Country: USA
Focus: Build
Status: Amateur
Yes, the Wilton is pretty cool. I use it mainly for neck carving. I have mine mounted to a wood block that I can move around to different vises as needed. New they were crazy expensive, but old ones that might be found at tool auctions are pretty cheap I think. Most people probably don't know what they are.They are oil filled BTW.


You do not have the required permissions to view the files attached to this post.

_________________
“ The meaning of life is to find your gift and the purpose of life is to give it away” Pablo Picasso


Top
 Profile  
 
PostPosted: Sat Sep 25, 2021 9:57 pm 
Offline
Contributing Member
Contributing Member

Joined: Tue Dec 17, 2013 10:52 pm
Posts: 3071
First name: Don
Last Name: Parker
City: Charleston
State: West Virginia
Zip/Postal Code: 25314
Country: USA
Focus: Build
Status: Amateur
There are different models. Bob’s is a hydraulic model, filled with oil. Mine just has a mechanical clutch.


Top
 Profile  
 
PostPosted: Sat Sep 25, 2021 10:50 pm 
Offline
Koa
Koa
User avatar

Joined: Wed Jan 24, 2007 2:45 pm
Posts: 1336
Location: Calgary, Canada
Status: Amateur
Pretty cool. Reminds me of the vise Stew Macs carried for a while. Forget the name. I was lucky enough to get a Veritas Tucker Vise before they were discontinued which does pretty much everything I want for positioning or I would consider it.


Top
 Profile  
 
PostPosted: Sun Sep 26, 2021 3:57 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Jul 10, 2009 4:44 am
Posts: 5493
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
Neat! Are you going to add a vacuum holder? Seems like it would be a worthwhile addition and inexpensive as a DIY add-on.

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


Top
 Profile  
 
PostPosted: Sun Sep 26, 2021 5:44 am 
Offline
Old Growth Brazilian Rosewood
Old Growth Brazilian Rosewood
User avatar

Joined: Fri Nov 02, 2007 9:49 am
Posts: 13386
Location: Ann Arbor, Michigan
First name: Hesh
Last Name: Breakstone
City: Ann Arbor
State: Michigan
Country: United States
Status: Professional
In my world these would be great for binding repairs on Martins, g*bsons and Guilds.


Top
 Profile  
 
PostPosted: Sun Sep 26, 2021 7:15 am 
Offline
Contributing Member
Contributing Member

Joined: Tue Dec 17, 2013 10:52 pm
Posts: 3071
First name: Don
Last Name: Parker
City: Charleston
State: West Virginia
Zip/Postal Code: 25314
Country: USA
Focus: Build
Status: Amateur
Colin North wrote:
Neat! Are you going to add a vacuum holder? Seems like it would be a worthwhile addition and inexpensive as a DIY add-on.


Colin—

Maybe. I don’t do any vacuum holding or clamping at the moment, but maybe in the future. I think ballbanjos has a good setup along these lines (see above). I do remember reading that some folks are not crazy about the Panavise work holders that get paired with the vacuum holders sold by one of the big luthier suppliers. If a person wanted to have the same positioning freedom with greater stability, I think this is a pretty good way to get there.

There are lots of applications! Plate carving is what led me to this solution, but cleaning up the insides of rims prior to gluing on the plates, neck carving, binding installation, etc., could all be a bit easier with something like this.


Top
 Profile  
 
PostPosted: Sun Sep 26, 2021 9:05 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Jul 10, 2009 4:44 am
Posts: 5493
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
doncaparker wrote:
Colin North wrote:
Neat! Are you going to add a vacuum holder? Seems like it would be a worthwhile addition and inexpensive as a DIY add-on.


Colin—

Maybe. I don’t do any vacuum holding or clamping at the moment, but maybe in the future. I think ballbanjos has a good setup along these lines (see above). I do remember reading that some folks are not crazy about the Panavise work holders that get paired with the vacuum holders sold by one of the big luthier suppliers. If a person wanted to have the same positioning freedom with greater stability, I think this is a pretty good way to get there.

There are lots of applications! Plate carving is what led me to this solution, but cleaning up the insides of rims prior to gluing on the plates, neck carving, binding installation, etc., could all be a bit easier with something like this.

You've got me looking at this now! Similar, but about 1/3 the price.


You do not have the required permissions to view the files attached to this post.

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


Top
 Profile  
 
PostPosted: Sun Sep 26, 2021 10:02 am 
Offline
Contributing Member
Contributing Member

Joined: Tue Dec 17, 2013 10:52 pm
Posts: 3071
First name: Don
Last Name: Parker
City: Charleston
State: West Virginia
Zip/Postal Code: 25314
Country: USA
Focus: Build
Status: Amateur
Colin—

The only suggestion I have is to do some research on whether this will have the level of stability you want. Some of these types of work holders don’t stay put as well as you would like. I hope this one does!


Top
 Profile  
 
PostPosted: Sun Sep 26, 2021 10:09 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Jul 10, 2009 4:44 am
Posts: 5493
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
doncaparker wrote:
Colin—

The only suggestion I have is to do some research on whether this will have the level of stability you want. Some of these types of work holders don’t stay put as well as you would like. I hope this one does!

21 reviews - 17 x 5 star, 4 x 4 star, no complaints about stability, even with mallet and chisels work, and money back guarantee - can't be too bad.
https://www.axminstertools.com/axminster-trade-carver-vice-102627

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 16 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 54 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com