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Reed Gray-inspired bowl depth gauge (Read 969 times)
 
Bill Rockwood
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Reed Gray-inspired bowl depth gauge
Feb 6th, 2017 at 3:32am
 
Using some shop scraps, I put together a simple gauge based on Reed's "cheater stick" method to determine the thickness in the bottom of a bowl.  Thanks Reed!

Attached is my video - thanks for watching!
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robo_hippy
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Re: Reed Gray-inspired bowl depth gauge
Reply #1 - Feb 8th, 2017 at 9:08pm
 
I left a comment on the video, but I have been new and improved...

robo hippy
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Bill Rockwood
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Re: Reed Gray-inspired bowl depth gauge
Reply #2 - Feb 8th, 2017 at 11:49pm
 
Thanks again Reed! And the inspiration from you just doesn't stop - your question about natural Edge Bowls has given me yet another idea, which would likely be the subject of my next video! Keep on doing what you do Reed - you're an inspiration.
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Bill Rockwood
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Re: Reed Gray-inspired bowl depth gauge
Reply #3 - Feb 19th, 2017 at 2:41am
 
Reed - here's my enhancement to adapt the gauge for use on natural edge bowls. Thanks again for the idea!

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« Last Edit: Feb 19th, 2017 at 2:43am by Bill Rockwood »  
 
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robo_hippy
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Re: Reed Gray-inspired bowl depth gauge
Reply #4 - Feb 19th, 2017 at 1:49pm
 
Looks good. I don't do to many NE bowls, and better than my framing square on the ways....

You probably suffer from the Engineer's Syndrome, which is "if it ain't broke, take it apart and fix it anyway..."

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Bill Rockwood
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Re: Reed Gray-inspired bowl depth gauge
Reply #5 - Feb 19th, 2017 at 8:49pm
 
Thanks Reed - I do work with engineers, nothing against them, but I hope I don't over engineer either! Honestly, I've never trusted my judgment for hollowing bowls and need something like your method to help me make sure I don't end up leaving a half an inch of thickness in the bottom.
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Bert Delisle
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Re: Reed Gray-inspired bowl depth gauge
Reply #6 - Feb 20th, 2017 at 10:28am
 
Bill Rockwood wrote on Feb 19th, 2017 at 8:49pm:
Honestly, I've never trusted my judgment for hollowing bowls and need something like your method to help me make sure I don't end up leaving a half an inch of thickness in the bottom.

Or more importantly prevent making NE funnels  Grin Grin Cheesy
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Don Stephan
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Re: Reed Gray-inspired bowl depth gauge
Reply #7 - Feb 20th, 2017 at 7:41pm
 
Like Bert said, 1/2" better than -1/16"!  A thicker bottom can help stabilize a bowl.
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Bill Perry
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Re: Reed Gray-inspired bowl depth gauge
Reply #8 - Mar 1st, 2017 at 5:44pm
 
I simplified the gauge a bit and went with the standard dimension of 5/8 for the dowel, about 1/16" too large for the ID of 1/2" pvc. I made a cut in the pvc spacer the full length, pushed it onto the 5/8 dowel, and gently heated it with a torch to get the plastic to 'relax' a bit and get a fit. Now it is a friction fit that takes a little effort to move into position on the dowel.  Doing so I also avoid the process of sanding down the dowel, and a 5/8" forstner bit makes a nice close hole for the dowel in the guide. And I don't need to find a hose clamp with a turning knob.
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Bill Rockwood
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Re: Reed Gray-inspired bowl depth gauge
Reply #9 - Mar 2nd, 2017 at 4:18pm
 
Very cool, hadn't thought of the torch/heat thing, would have saved me the sanding too! As long as the PVC stays put during the bowl turning, the fewer parts the better!
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Ralph Fahringer
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Re: Reed Gray-inspired bowl depth gauge
Reply #10 - Mar 2nd, 2017 at 5:37pm
 
I have a box full of bowl depth gauges. They all have an eraser on one end as well so they are actually multi purpose tools.

See... all you have to do is put the pencil into the bowl till it touches the bottom and then sight along the rim of the bowl, grip the pencil with thumb and fore finger where the line of the rim hits the pencil,  pull the pencil out and lay it along the side of the bowl.

THAT will tell you where the bottom of the inside of the bowl is  in reference to the outside bottom.
You can use that very same tool to make a light mark on the outside showing where you are currently as well as a mark of where you want to stop... thus showing you how much further you have till you stop digging. Smiley

If you wanted to improve on my "depth gauge" slightly, buy a 1/4" dowel and make ruler marks along it.


Why are you all trying to "engineer" something  when you don't need to?? Shocked Shocked Roll Eyes


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Glenn Roberts
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Re: Reed Gray-inspired bowl depth gauge
Reply #11 - Mar 2nd, 2017 at 9:36pm
 
I was wondering the same thing. A 1/4" dowel and an O ring lined up on the edge of the bowl works perfectly for me.
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« Last Edit: Mar 2nd, 2017 at 9:36pm by Glenn Roberts »  

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Bill Rockwood
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Re: Reed Gray-inspired bowl depth gauge
Reply #12 - Mar 2nd, 2017 at 10:14pm
 
Hey, to each their own, right?  I just wanted something a little more precise than "kentucky windage" - not that there's anything wrong with that, but I just needed something a little more easily observable to me than sighting across the edges of bowl rims.  Use whatever works best for you! Smiley
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Bert Delisle
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Re: Reed Gray-inspired bowl depth gauge
Reply #13 - Mar 3rd, 2017 at 10:36am
 
I have used the pencil/sight method to make funnels, and finally made a simple cross stick with dowel similar to the OP's but without the Robbo indicator and still made a few funnels, the Robbohippy method has been my go to method now, no more funnels unless I want to make a lampshade, Lol.
I like the adaptation for natural edge vessel measuring, I like having good reliable / repeatable jigs available, and building jigs is fun too. As I have several chucks with different jaws so I will make dowel gauge that has marks for each chuck on the slider so only one slider needed. Thanks for the posting and good discussions.
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Bert Delisle
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Re: Reed Gray-inspired bowl depth gauge
Reply #14 - Mar 7th, 2017 at 6:10pm
 
Here are a few pics, of my bowl / vessel depth gauge. It may be over kill but at least I don't lose it in the shavings. I ended up making a tube for each size chuck. They store nicely on the base.
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