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Jon Ellison wrote:

> Hi Phil
>
> What exactly do you mean by a "planar leveling mark" ?
>

Here's the 'short form' of the process:
Quote

1. You have a block of stone whose specification is that it should be 41" call with a flat planar face on top. First, it is VERY roughly cut to a planar surface to get rid of the bulk of hte excess stone. To do this, you indicate the 41" height by drawing lines around the entire perimeter of the stone to delineate the height of 41". Since the stone is only "rough cut", you might actually have different regions that are exactly 41" high while other, rougher regions are up to 41.5" or 42" high, etc. So you need a way to trim the excess height down to the perimeter marking without huge circular saws and lasers. You need to use a guide that helps you chisel off the excess stone and that lets you know when it's really perfectly flat at nominal height and not hilly or too bumpy, etc.

2. The "guide" that allows you to cut the stone at nominal height and with a flat plane surface is a thick veneer block of stone, wood, or copper that's stiff and flat enough of a plane according to engineering specs; you paint one of the guide's planar faces red and then lay that painted face on top of the rough-cut block of stone. (the veneer must be very rigid and not bend and bow).

3. Then immediately remove the veneer, and you will see paint spots on the highest peaks where the rough cut block touched the veneer. When you see a large concentration of peaks in one area, this means those peaks must be chiseled off in order to slightly lower that part of the block of stone. If the entire veneer is still too high compared to the perimeter spec line, then ALL red dots need to be chiseled off.

4. Repeat #2 and #3 until the plane of the block shows an even distribution of red dots and the veneer is down to the level of the perimeter line that demarcates the nominal height for that block.
This is exactly what those stray dots suggest on several blocks photographed by Colette Dowell in Campbell's Chamber.



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Subject Views Written By Posted
About Those Two Dots.... 460 Scott Creighton 06-Sep-14 10:54
Re: About Those Two Dots.... 178 Jon Ellison 06-Sep-14 12:15
Re: About Those Two Dots.... 122 Skatha 06-Sep-14 17:24
Re: About Those Two Dots.... 184 Origyptian 06-Sep-14 18:12
Re: About Those Two Dots.... 194 Jon Ellison 06-Sep-14 18:36
Re: About Those Two Dots.... 160 sfbey 06-Sep-14 22:29
Re: About Those Two Dots.... 199 Scott Creighton 06-Sep-14 23:58
Re: About Those Two Dots.... 189 Origyptian 07-Sep-14 00:12
Re: About Those Two Dots.... 182 Jon Ellison 07-Sep-14 01:22
Re: About Those Two Dots.... 228 Origyptian 07-Sep-14 03:52
Re: About Those Two Dots.... 194 Jon Ellison 07-Sep-14 01:38
Re: About Those Two Dots.... 215 Audrey 07-Sep-14 06:21
Re: About Those Two Dots.... 252 Martin Stower 10-Sep-14 00:22
Re: About Those Two Dots.... 179 Jon Ellison 07-Sep-14 08:09
Re: About Those Two Dots.... 202 Scott Creighton 07-Sep-14 10:48
Re: About Those Two Dots.... 153 Audrey 07-Sep-14 17:44
Re: About Those Two Dots.... 193 Scott Creighton 07-Sep-14 18:59
Re: About Those Two Dots.... 240 sfbey 07-Sep-14 19:02
Re: About Those Two Dots.... 216 Scott Creighton 07-Sep-14 22:35
Re: About Those Two Dots.... 201 sfbey 08-Sep-14 00:35
Re: About Those Two Dots.... 218 Scott Creighton 08-Sep-14 10:09
Re: About Those Two Dots.... 183 Audrey 08-Sep-14 00:44
Re: About Those Two Dots.... 212 eyeofhorus33 08-Sep-14 20:09
Re: About Those Two Dots.... 209 Origyptian 08-Sep-14 20:27
Re: About Those Two Dots.... 234 eyeofhorus33 08-Sep-14 20:33
Re: About Those Two Dots.... 172 Origyptian 08-Sep-14 21:12
Re: About Those Two Dots.... 167 eyeofhorus33 08-Sep-14 21:19
Re: About Those Two Dots.... 178 Origyptian 08-Sep-14 21:29
Re: About Those Two Dots.... 208 eyeofhorus33 08-Sep-14 21:41
Re: About Those Two Dots.... 179 Origyptian 08-Sep-14 21:52
Re: About Those Two Dots.... 140 eyeofhorus33 08-Sep-14 22:04
Re: About Those Two Dots.... 142 Origyptian 08-Sep-14 22:35
Re: About Those Two Dots.... 153 eyeofhorus33 08-Sep-14 22:42
Re: About Those Two Dots.... 192 Origyptian 08-Sep-14 22:56
Re: About Those Two Dots.... 171 Audrey 09-Sep-14 01:01
Re: About Those Two Dots.... 182 Jon Ellison 09-Sep-14 01:37
Re: About Those Two Dots.... 227 eyeofhorus33 09-Sep-14 17:54
Re: About Those Two Dots.... 128 Origyptian 09-Sep-14 18:23
Re: About Those Two Dots.... 146 eyeofhorus33 09-Sep-14 19:02
Re: About Those Two Dots.... 184 Origyptian 09-Sep-14 19:32
Re: About Those Two Dots.... 205 eyeofhorus33 09-Sep-14 20:43
Re: About Those Two Dots.... 182 Jon Ellison 09-Sep-14 20:55
Re: About Those Two Dots.... 208 Morten 09-Sep-14 21:59
Re: About Those Two Dots.... 210 Jon Ellison 09-Sep-14 22:12
Re: About Those Two Dots.... 214 Origyptian 09-Sep-14 22:36
Re: About Those Two Dots.... 185 Jon Ellison 09-Sep-14 22:42
Re: About Those Two Dots.... 165 Origyptian 09-Sep-14 22:29
Re: About Those Two Dots.... 190 Jon Ellison 09-Sep-14 22:35
Re: About Those Two Dots.... 168 Origyptian 09-Sep-14 22:48
Re: About Those Two Dots.... 184 Jon Ellison 09-Sep-14 23:04
Re: About Those Two Dots.... 191 Jon Ellison 10-Sep-14 08:45
Re: About Those Two Dots.... 187 DUNE 10-Sep-14 09:52
Re: About Those Two Dots.... 228 Jon Ellison 10-Sep-14 11:47
Re: About Those Two Dots.... 200 DUNE 10-Sep-14 13:17
Re: About Those Two Dots.... 194 Jon Ellison 10-Sep-14 13:36
Re: About Those Two Dots.... 187 DUNE 10-Sep-14 14:14
Re: About Those Two Dots.... 189 Jon Ellison 10-Sep-14 16:49
Re: About Those Two Dots.... 126 DUNE 10-Sep-14 17:26
Re: About Those Two Dots.... 181 Origyptian 10-Sep-14 18:03
Re: About Those Two Dots.... 222 Scott Creighton 10-Sep-14 18:31
Re: About Those Two Dots.... 208 Jon Ellison 10-Sep-14 18:49
Re: About Those Two Dots.... 223 Scott Creighton 10-Sep-14 18:54
Re: About Those Two Dots.... 202 Jon Ellison 10-Sep-14 19:12
Re: About Those Two Dots.... 187 Origyptian 10-Sep-14 19:52
Re: About Those Two Dots.... 196 Jon Ellison 10-Sep-14 19:35
Re: About Those Two Dots.... 195 Origyptian 10-Sep-14 19:37
Re: About Those Two Dots.... 222 DUNE 10-Sep-14 19:54
Re: About Those Two Dots.... 207 Origyptian 10-Sep-14 20:06
Re: About Those Two Dots.... 239 Origyptian 10-Sep-14 19:34
Re: About Those Two Dots.... 220 Origyptian 10-Sep-14 15:57
Re: About Those Two Dots.... 191 DUNE 10-Sep-14 16:39
could be a result of overprocessing the image 193 Skatha 10-Sep-14 17:35
Re: could be a result of overprocessing the image 184 Jon Ellison 10-Sep-14 17:40
Re: About Those Two Dots.... 210 Origyptian 09-Sep-14 22:26
Re: About Those Two Dots.... 193 Morten 08-Sep-14 23:03
Re: About Those Two Dots.... 195 Origyptian 08-Sep-14 23:05
Re: About Those Two Dots.... 196 Morten 08-Sep-14 23:11
Re: About Those Two Dots.... 179 eyeofhorus33 08-Sep-14 23:15
Re: About Those Two Dots.... 249 sfbey 08-Sep-14 23:18
Re: About Those Two Dots.... 179 Origyptian 09-Sep-14 00:03
Re: About Those Two Dots.... 182 Jon Ellison 09-Sep-14 00:30
Re: About Those Two Dots.... 230 Origyptian 09-Sep-14 00:03
Re: About Those Two Dots.... 212 Origyptian 09-Sep-14 00:01
Re: About Those Two Dots.... 187 eyeofhorus33 08-Sep-14 23:13
Re: About Those Two Dots.... 170 Audrey 09-Sep-14 00:52
Re: About Those Two Dots.... 208 Origyptian 09-Sep-14 05:50
Re: About Those Two Dots.... 185 Origyptian 08-Sep-14 21:15
Re: About Those Two Dots.... 219 sfbey 08-Sep-14 21:23
Re: About Those Two Dots.... 212 eyeofhorus33 08-Sep-14 21:26
Re: About Those Two Dots.... 196 Origyptian 08-Sep-14 21:30
Re: About Those Two Dots.... 189 eyeofhorus33 08-Sep-14 21:47
Re: About Those Two Dots.... 201 Origyptian 08-Sep-14 22:06
Re: About Those Two Dots.... 191 eyeofhorus33 08-Sep-14 22:21
Re: About Those Two Dots.... 222 Origyptian 08-Sep-14 22:44
Re: About Those Two Dots.... 165 sfbey 08-Sep-14 22:04
Re: About Those Two Dots.... 183 Audrey 08-Sep-14 21:59
Re: About Those Two Dots.... 205 sfbey 08-Sep-14 22:11
Re: About Those Two Dots.... 109 eyeofhorus33 08-Sep-14 21:25
Re: About Those Two Dots.... 165 Audrey 08-Sep-14 21:24
Re: About Those Two Dots.... 194 eyeofhorus33 08-Sep-14 21:28
Re: About Those Two Dots.... 169 Audrey 08-Sep-14 22:02
Re: About Those Two Dots.... 152 eyeofhorus33 08-Sep-14 22:13
Re: About Those Two Dots.... 137 Origyptian 08-Sep-14 22:40
Re: About Those Two Dots.... 147 Thanos5150 11-Sep-14 05:11
Re: About Those Two Dots.... 159 Origyptian 11-Sep-14 13:51
Re: About Those Two Dots.... 183 Thanos5150 11-Sep-14 16:47
Re: About Those Two Dots.... 178 Origyptian 11-Sep-14 20:27
Re: About Those Two Dots.... 275 Thanos5150 11-Sep-14 21:28
Re: About Those Two Dots.... 183 Origyptian 11-Sep-14 22:46
Re: About Those Two Dots.... 191 Jon Ellison 11-Sep-14 22:55
Re: About Those Two Dots.... 158 Origyptian 11-Sep-14 23:34
Re: About Those Two Dots.... 198 Jon Ellison 11-Sep-14 23:54
Re: About Those Two Dots.... 171 Origyptian 12-Sep-14 00:07
Re: About Those Two Dots.... 179 Jon Ellison 12-Sep-14 00:17
Re: About Those Two Dots.... 180 Origyptian 12-Sep-14 00:27
Re: About Those Two Dots.... 191 Jon Ellison 12-Sep-14 00:39
Re: About Those Two Dots.... 193 Origyptian 12-Sep-14 01:12
Re: About Those Two Dots.... 163 Jon Ellison 12-Sep-14 06:26
Re: About Those Two Dots.... 179 Origyptian 12-Sep-14 15:49
Re: About Those Two Dots.... 173 Jon Ellison 12-Sep-14 07:22
Re: About Those Two Dots.... 153 Origyptian 12-Sep-14 15:58
Re: About Those Two Dots.... 133 DUNE 12-Sep-14 16:07
Re: About Those Two Dots.... 174 Jon Ellison 12-Sep-14 16:13
Re: About Those Two Dots.... 177 Jon Ellison 12-Sep-14 16:19
Re: About Those Two Dots.... 97 Origyptian 12-Sep-14 16:48
Re: About Those Two Dots.... 206 DUNE 12-Sep-14 17:07
Re: About Those Two Dots.... 196 DUNE 12-Sep-14 17:45
Re: About Those Two Dots.... 193 Origyptian 12-Sep-14 18:01
Re: About Those Two Dots.... 169 DUNE 12-Sep-14 18:16
Re: About Those Two Dots.... 188 Jon Ellison 12-Sep-14 18:25
Re: About Those Two Dots.... 190 Origyptian 12-Sep-14 18:53
Re: About Those Two Dots.... 241 Jon Ellison 12-Sep-14 19:15
Re: About Those Two Dots.... 182 Origyptian 12-Sep-14 19:58
Re: About Those Two Dots.... 167 Jon Ellison 12-Sep-14 20:27
Re: About Those Two Dots.... 198 Origyptian 12-Sep-14 20:58
Re: About Those Two Dots.... 192 Origyptian 12-Sep-14 16:35
Re: About Those Two Dots.... 187 Jon Ellison 12-Sep-14 18:05
Re: About Those Two Dots.... 202 Thanos5150 11-Sep-14 23:59
Re: About Those Two Dots.... 172 Origyptian 12-Sep-14 00:16
Re: About Those Two Dots.... 163 Thanos5150 12-Sep-14 00:27
Re: About Those Two Dots.... 164 Origyptian 12-Sep-14 00:31
Re: About Those Two Dots.... 211 Audrey 09-Sep-14 02:04
Re: About Those Two Dots.... 170 Jon Ellison 09-Sep-14 10:56
Re: About Those Two Dots.... 171 Origyptian 08-Sep-14 22:13
Re: About Those Two Dots.... 199 Jon Ellison 07-Sep-14 11:53
Re: About Those Two Dots.... 169 Origyptian 07-Sep-14 17:21
Re: About Those Two Dots.... 198 Jon Ellison 07-Sep-14 18:15
Re: About Those Two Dots.... 154 Origyptian 07-Sep-14 18:24
Re: About Those Two Dots.... 181 Jon Ellison 07-Sep-14 18:27
Re: About Those Two Dots.... 206 Jon Ellison 07-Sep-14 18:52
Re: About Those Two Dots.... 184 Origyptian 07-Sep-14 19:08
Re: About Those Two Dots.... 151 Jon Ellison 07-Sep-14 19:12
Re: About Those Two Dots.... 181 DScribr 07-Sep-14 22:10
Re: About Those Two Dots.... 192 Origyptian 07-Sep-14 22:53
Could you link to some? 196 Skatha 08-Sep-14 06:17
Re: About Those Two Dots.... 183 DScribr 08-Sep-14 08:41
Re: About Those Two Dots.... 207 Jon Ellison 08-Sep-14 09:26
Re: About Those Two Dots.... 153 Origyptian 08-Sep-14 15:00
Re: About Those Two Dots.... 178 DScribr 08-Sep-14 15:13
Re: About Those Two Dots.... 239 Jon Ellison 08-Sep-14 15:45
Re: About Those Two Dots.... 149 DScribr 08-Sep-14 15:58
Re: About Those Two Dots.... 139 Jon Ellison 08-Sep-14 16:11
Re: About Those Two Dots.... 79 Origyptian 08-Sep-14 16:19
Re: About Those Two Dots.... 173 Audrey 08-Sep-14 21:15
Re: About Those Two Dots.... 183 Martin Stower 10-Sep-14 00:27
Re: About Those Two Dots.... 190 Scott Creighton 10-Sep-14 10:19
...Vyse is showing THREE dots... 185 Skatha 10-Sep-14 15:31
Re: ...Vyse is showing THREE dots... 165 Origyptian 10-Sep-14 15:39
Re: ...Vyse is showing THREE dots... 233 Scott Creighton 10-Sep-14 15:55
Re: ...Vyse is showing THREE dots... 166 Skatha 10-Sep-14 17:33
Re: ...Vyse is showing THREE dots... 182 Scott Creighton 10-Sep-14 18:09
Re: ...Vyse is showing THREE dots... 155 Skatha 10-Sep-14 23:54
Re: ...Vyse is showing THREE dots... 197 Scott Creighton 11-Sep-14 08:49
Re: ...Vyse is showing THREE dots... 164 Skatha 11-Sep-14 15:06


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