<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=iso-8859-1"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
@font-face
{font-family:"Brush Script MT";
panose-1:3 6 8 2 4 4 6 7 3 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
color:black;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0in;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
color:black;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:"Consolas",serif;
color:black;}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Arial",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:1442993922;
mso-list-type:hybrid;
mso-list-template-ids:397810048 67698689 67698691 67698693 67698689 67698691 67698693 67698689 67698691 67698693;}
@list l0:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l0:level2
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l0:level3
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l0:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l0:level5
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l0:level6
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l0:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Symbol;}
@list l0:level8
{mso-level-number-format:bullet;
mso-level-text:o;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:"Courier New";}
@list l0:level9
{mso-level-number-format:bullet;
mso-level-text:\F0A7;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;
font-family:Wingdings;}
@list l1
{mso-list-id:2029670758;
mso-list-template-ids:322632732;}
@list l1:level1
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level2
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level3
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:1.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level4
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level5
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:2.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level6
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level7
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:3.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level8
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.0in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
@list l1:level9
{mso-level-number-format:bullet;
mso-level-text:\F0B7;
mso-level-tab-stop:4.5in;
mso-level-number-position:left;
text-indent:-.25in;
mso-ansi-font-size:10.0pt;
font-family:Symbol;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif;color:windowtext'>Jason,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif;color:windowtext'> For cutting on the bandsaw, I was thinking about something like you described. I was thinking I would cut a smidge less than ½ of a 1” hole in 2 boards. I would have to sneak up on the size because I would want the boards to be almost able to close with the sphere in it. Then, I thought I would glue and clamp the boards closed on the sphere to use that carrier to cut the sphere. But, can you do it with a WW bandsaw? Maybe by hand is the way to go in which case I wouldn’t need a carrier.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif;color:windowtext'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:18.0pt;font-family:"Brush Script MT",serif;color:windowtext'>Chuck<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Arial",sans-serif;color:windowtext'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='color:windowtext'>From:</span></b><span style='color:windowtext'> Woodworkers <woodworkers-bounces@lists.sawdusters.org> <b>On Behalf Of </b>Jason Beam via Woodworkers<br><b>Sent:</b> Tuesday, March 30, 2021 4:22 PM<br><b>To:</b> woodworkers@sawdusters.org<br><b>Cc:</b> Jason Beam <beamer@beamerweb.com><br><b>Subject:</b> Re: [Woodworkers] Copper metal working<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>This sounds like a fun challenge!<br><br>Reducing the diameter of the sphere might be doable with care but it's possible to end up with a lopsided thing pretty easy if you're doing it completely by hand. It can be done if you're persnickety and "sneak up" on the shape with fine files. Then you'll need to restore the polish after that.<br><br>As for drilling - copper is really grabby material so you'd want to be sure you have the sphere clamped very securely to the drill press table. Also, because it's so grabby, especially with drilling, you'll want to take a lot of care when presenting the drill to the work. Being prepared for it to dive into the work can help but if you have a quill lock on your DP, cinch that down just enough to give you a fair bit of added friction. This will help your reaction time if it does grab. I'd spin the drill slowly, too.<br><br>As for cutting - You can cut many nonferous metals with woodworking cutters. Since copper is so grabby, I'd be a little more cautious on the bandsaw. I'd want to clamp the thing into some kind of captured arrangement (like two pieces of sacrificial wood with a divot in them to really clamp down on the part. Think tongs made of wood with a screw that pulls the jaws together to really clamp down on it. Alternatively, it's soft so cutting with a hacksaw would be a lot lower impact and less risky.<br><br><br><o:p></o:p></p><div><p class=MsoNormal>Jason Beam<br><b><a href="https://beamerweb.com">Beamer's Brands</a></b><o:p></o:p></p></div><div><p class=MsoNormal>On 3/30/2021 2:01 PM, chuck.steger--- via Woodworkers wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Hope everyone is safe and healthy!</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> I need some advice on working solid copper. I’ll give you some context on what I’m doing.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> I designing and building a Heritage Box for someone. Everything that goes into the design and construction will have some elements from their cultural background. Their mother and grandparents lived and worked in a copper mining town in Chile and copper was a big part of their lives. To bring copper into the design, I will attach the legs to the box using copper rods. Since the legs taper, I will use 1/8”, 3/16”, and ¼” rods and leave a ¼” gap between the legs and box. But this is subtle and I wanted to add something else. So I want to add a copper sphere at the top of the box. I drew up the design full scale and the sphere looks good at ¾”. So, I started researching copper spheres and what I found are jewelry spheres ½” and less or solid spheres 1” and greater. I ordered the 1” spheres which are actually used for plating copper.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> So here are some of my issues/questions/concerns:</span><o:p></o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo3'><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Is there any way possible to reduce the diameter? I thought about some kind of holding contraption on a lathe and then using files but that just sounds like a bad idea.</span><o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo3'><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>The sphere weights in at 3 oz. Now that may seem light but it’s a little heftier that I wanted because I don’t want it to tip the box over when hinged open. The box footprint will be 8”x12” so it may be OK. I will build a prototype as I always do so I’ll find out. Also with a prototype it will be easy to see if 1” is too big. A ¾” hollow sphere would be perfect but I can’t find that.</span><o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo3'><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Will solid copper drill OK? I would like to drill a hole for a rod to anchor the sphere to the box. I will epoxy the sphere to a cradle but a rod would be so much more secure IMO. And, given the weight, I would feel better.</span><o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo3'><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Here’s another take …. Is there a way to cut the sphere in ½” I only have WW bandsaws so even with a metal blade, WW bandsaws run too fast, don’t they? The thought process here is maybe I take the two half spheres and attach them to the side of the box as an adornment. The design will be mostly Asian so spheres might look good. </span><o:p></o:p></li></ul><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> So you can see the design is in total flux. I’ve started building the prototype out of pine.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:18.0pt;font-family:"Brush Script MT",serif'>Chuck</span><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal><br><br><o:p></o:p></p><pre>_______________________________________________<o:p></o:p></pre><pre>I want to be one of my friends for a day so I can see how cool it is to hang out with me.<o:p></o:p></pre><pre><a href="mailto:Woodworkers@lists.sawdusters.org">Woodworkers@lists.sawdusters.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>To unsubscribe from this list -<o:p></o:p></pre><pre><a href="http://lists.sawdusters.org/listinfo.cgi/woodworkers-sawdusters.org">http://lists.sawdusters.org/listinfo.cgi/woodworkers-sawdusters.org</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Address to contact the list ADMIN staff -<o:p></o:p></pre><pre><a href="mailto:woodworkers-owner@lists.sawdusters.org">woodworkers-owner@lists.sawdusters.org</a><o:p></o:p></pre></blockquote><p class=MsoNormal><o:p> </o:p></p></div></body></html>