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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.... 518 Scott Creighton 06-Sep-14 10:54
Re: About Those Two Dots.... 226 Jon Ellison 06-Sep-14 12:15
Re: About Those Two Dots.... 170 Skatha 06-Sep-14 17:24
Re: About Those Two Dots.... 227 Origyptian 06-Sep-14 18:12
Re: About Those Two Dots.... 239 Jon Ellison 06-Sep-14 18:36
Re: About Those Two Dots.... 208 sfbey 06-Sep-14 22:29
Re: About Those Two Dots.... 241 Scott Creighton 06-Sep-14 23:58
Re: About Those Two Dots.... 233 Origyptian 07-Sep-14 00:12
Re: About Those Two Dots.... 220 Jon Ellison 07-Sep-14 01:22
Re: About Those Two Dots.... 278 Origyptian 07-Sep-14 03:52
Re: About Those Two Dots.... 255 Jon Ellison 07-Sep-14 01:38
Re: About Those Two Dots.... 278 Audrey 07-Sep-14 06:21
Re: About Those Two Dots.... 307 Martin Stower 10-Sep-14 00:22
Re: About Those Two Dots.... 239 Jon Ellison 07-Sep-14 08:09
Re: About Those Two Dots.... 253 Scott Creighton 07-Sep-14 10:48
Re: About Those Two Dots.... 206 Audrey 07-Sep-14 17:44
Re: About Those Two Dots.... 238 Scott Creighton 07-Sep-14 18:59
Re: About Those Two Dots.... 291 sfbey 07-Sep-14 19:02
Re: About Those Two Dots.... 261 Scott Creighton 07-Sep-14 22:35
Re: About Those Two Dots.... 251 sfbey 08-Sep-14 00:35
Re: About Those Two Dots.... 278 Scott Creighton 08-Sep-14 10:09
Re: About Those Two Dots.... 232 Audrey 08-Sep-14 00:44
Re: About Those Two Dots.... 265 eyeofhorus33 08-Sep-14 20:09
Re: About Those Two Dots.... 259 Origyptian 08-Sep-14 20:27
Re: About Those Two Dots.... 288 eyeofhorus33 08-Sep-14 20:33
Re: About Those Two Dots.... 221 Origyptian 08-Sep-14 21:12
Re: About Those Two Dots.... 208 eyeofhorus33 08-Sep-14 21:19
Re: About Those Two Dots.... 221 Origyptian 08-Sep-14 21:29
Re: About Those Two Dots.... 255 eyeofhorus33 08-Sep-14 21:41
Re: About Those Two Dots.... 226 Origyptian 08-Sep-14 21:52
Re: About Those Two Dots.... 178 eyeofhorus33 08-Sep-14 22:04
Re: About Those Two Dots.... 185 Origyptian 08-Sep-14 22:35
Re: About Those Two Dots.... 195 eyeofhorus33 08-Sep-14 22:42
Re: About Those Two Dots.... 229 Origyptian 08-Sep-14 22:56
Re: About Those Two Dots.... 218 Audrey 09-Sep-14 01:01
Re: About Those Two Dots.... 220 Jon Ellison 09-Sep-14 01:37
Re: About Those Two Dots.... 278 eyeofhorus33 09-Sep-14 17:54
Re: About Those Two Dots.... 169 Origyptian 09-Sep-14 18:23
Re: About Those Two Dots.... 190 eyeofhorus33 09-Sep-14 19:02
Re: About Those Two Dots.... 231 Origyptian 09-Sep-14 19:32
Re: About Those Two Dots.... 253 eyeofhorus33 09-Sep-14 20:43
Re: About Those Two Dots.... 227 Jon Ellison 09-Sep-14 20:55
Re: About Those Two Dots.... 253 Morten 09-Sep-14 21:59
Re: About Those Two Dots.... 252 Jon Ellison 09-Sep-14 22:12
Re: About Those Two Dots.... 258 Origyptian 09-Sep-14 22:36
Re: About Those Two Dots.... 227 Jon Ellison 09-Sep-14 22:42
Re: About Those Two Dots.... 201 Origyptian 09-Sep-14 22:29
Re: About Those Two Dots.... 241 Jon Ellison 09-Sep-14 22:35
Re: About Those Two Dots.... 207 Origyptian 09-Sep-14 22:48
Re: About Those Two Dots.... 223 Jon Ellison 09-Sep-14 23:04
Re: About Those Two Dots.... 253 Jon Ellison 10-Sep-14 08:45
Re: About Those Two Dots.... 226 DUNE 10-Sep-14 09:52
Re: About Those Two Dots.... 274 Jon Ellison 10-Sep-14 11:47
Re: About Those Two Dots.... 241 DUNE 10-Sep-14 13:17
Re: About Those Two Dots.... 240 Jon Ellison 10-Sep-14 13:36
Re: About Those Two Dots.... 232 DUNE 10-Sep-14 14:14
Re: About Those Two Dots.... 229 Jon Ellison 10-Sep-14 16:49
Re: About Those Two Dots.... 170 DUNE 10-Sep-14 17:26
Re: About Those Two Dots.... 232 Origyptian 10-Sep-14 18:03
Re: About Those Two Dots.... 268 Scott Creighton 10-Sep-14 18:31
Re: About Those Two Dots.... 262 Jon Ellison 10-Sep-14 18:49
Re: About Those Two Dots.... 269 Scott Creighton 10-Sep-14 18:54
Re: About Those Two Dots.... 247 Jon Ellison 10-Sep-14 19:12
Re: About Those Two Dots.... 241 Origyptian 10-Sep-14 19:52
Re: About Those Two Dots.... 241 Jon Ellison 10-Sep-14 19:35
Re: About Those Two Dots.... 232 Origyptian 10-Sep-14 19:37
Re: About Those Two Dots.... 273 DUNE 10-Sep-14 19:54
Re: About Those Two Dots.... 269 Origyptian 10-Sep-14 20:06
Re: About Those Two Dots.... 288 Origyptian 10-Sep-14 19:34
Re: About Those Two Dots.... 264 Origyptian 10-Sep-14 15:57
Re: About Those Two Dots.... 239 DUNE 10-Sep-14 16:39
could be a result of overprocessing the image 235 Skatha 10-Sep-14 17:35
Re: could be a result of overprocessing the image 232 Jon Ellison 10-Sep-14 17:40
Re: About Those Two Dots.... 251 Origyptian 09-Sep-14 22:26
Re: About Those Two Dots.... 240 Morten 08-Sep-14 23:03
Re: About Those Two Dots.... 236 Origyptian 08-Sep-14 23:05
Re: About Those Two Dots.... 241 Morten 08-Sep-14 23:11
Re: About Those Two Dots.... 222 eyeofhorus33 08-Sep-14 23:15
Re: About Those Two Dots.... 366 sfbey 08-Sep-14 23:18
Re: About Those Two Dots.... 224 Origyptian 09-Sep-14 00:03
Re: About Those Two Dots.... 246 Jon Ellison 09-Sep-14 00:30
Re: About Those Two Dots.... 269 Origyptian 09-Sep-14 00:03
Re: About Those Two Dots.... 251 Origyptian 09-Sep-14 00:01
Re: About Those Two Dots.... 253 eyeofhorus33 08-Sep-14 23:13
Re: About Those Two Dots.... 210 Audrey 09-Sep-14 00:52
Re: About Those Two Dots.... 249 Origyptian 09-Sep-14 05:50
Re: About Those Two Dots.... 232 Origyptian 08-Sep-14 21:15
Re: About Those Two Dots.... 268 sfbey 08-Sep-14 21:23
Re: About Those Two Dots.... 270 eyeofhorus33 08-Sep-14 21:26
Re: About Those Two Dots.... 244 Origyptian 08-Sep-14 21:30
Re: About Those Two Dots.... 239 eyeofhorus33 08-Sep-14 21:47
Re: About Those Two Dots.... 255 Origyptian 08-Sep-14 22:06
Re: About Those Two Dots.... 242 eyeofhorus33 08-Sep-14 22:21
Re: About Those Two Dots.... 275 Origyptian 08-Sep-14 22:44
Re: About Those Two Dots.... 210 sfbey 08-Sep-14 22:04
Re: About Those Two Dots.... 227 Audrey 08-Sep-14 21:59
Re: About Those Two Dots.... 247 sfbey 08-Sep-14 22:11
Re: About Those Two Dots.... 153 eyeofhorus33 08-Sep-14 21:25
Re: About Those Two Dots.... 209 Audrey 08-Sep-14 21:24
Re: About Those Two Dots.... 232 eyeofhorus33 08-Sep-14 21:28
Re: About Those Two Dots.... 249 Audrey 08-Sep-14 22:02
Re: About Those Two Dots.... 189 eyeofhorus33 08-Sep-14 22:13
Re: About Those Two Dots.... 177 Origyptian 08-Sep-14 22:40
Re: About Those Two Dots.... 185 Thanos5150 11-Sep-14 05:11
Re: About Those Two Dots.... 201 Origyptian 11-Sep-14 13:51
Re: About Those Two Dots.... 221 Thanos5150 11-Sep-14 16:47
Re: About Those Two Dots.... 215 Origyptian 11-Sep-14 20:27
Re: About Those Two Dots.... 322 Thanos5150 11-Sep-14 21:28
Re: About Those Two Dots.... 228 Origyptian 11-Sep-14 22:46
Re: About Those Two Dots.... 246 Jon Ellison 11-Sep-14 22:55
Re: About Those Two Dots.... 200 Origyptian 11-Sep-14 23:34
Re: About Those Two Dots.... 238 Jon Ellison 11-Sep-14 23:54
Re: About Those Two Dots.... 210 Origyptian 12-Sep-14 00:07
Re: About Those Two Dots.... 218 Jon Ellison 12-Sep-14 00:17
Re: About Those Two Dots.... 243 Origyptian 12-Sep-14 00:27
Re: About Those Two Dots.... 234 Jon Ellison 12-Sep-14 00:39
Re: About Those Two Dots.... 238 Origyptian 12-Sep-14 01:12
Re: About Those Two Dots.... 211 Jon Ellison 12-Sep-14 06:26
Re: About Those Two Dots.... 218 Origyptian 12-Sep-14 15:49
Re: About Those Two Dots.... 240 Jon Ellison 12-Sep-14 07:22
Re: About Those Two Dots.... 194 Origyptian 12-Sep-14 15:58
Re: About Those Two Dots.... 172 DUNE 12-Sep-14 16:07
Re: About Those Two Dots.... 218 Jon Ellison 12-Sep-14 16:13
Re: About Those Two Dots.... 214 Jon Ellison 12-Sep-14 16:19
Re: About Those Two Dots.... 132 Origyptian 12-Sep-14 16:48
Re: About Those Two Dots.... 245 DUNE 12-Sep-14 17:07
Re: About Those Two Dots.... 235 DUNE 12-Sep-14 17:45
Re: About Those Two Dots.... 233 Origyptian 12-Sep-14 18:01
Re: About Those Two Dots.... 209 DUNE 12-Sep-14 18:16
Re: About Those Two Dots.... 230 Jon Ellison 12-Sep-14 18:25
Re: About Those Two Dots.... 229 Origyptian 12-Sep-14 18:53
Re: About Those Two Dots.... 285 Jon Ellison 12-Sep-14 19:15
Re: About Those Two Dots.... 226 Origyptian 12-Sep-14 19:58
Re: About Those Two Dots.... 204 Jon Ellison 12-Sep-14 20:27
Re: About Those Two Dots.... 250 Origyptian 12-Sep-14 20:58
Re: About Those Two Dots.... 228 Origyptian 12-Sep-14 16:35
Re: About Those Two Dots.... 225 Jon Ellison 12-Sep-14 18:05
Re: About Those Two Dots.... 248 Thanos5150 11-Sep-14 23:59
Re: About Those Two Dots.... 211 Origyptian 12-Sep-14 00:16
Re: About Those Two Dots.... 205 Thanos5150 12-Sep-14 00:27
Re: About Those Two Dots.... 202 Origyptian 12-Sep-14 00:31
Re: About Those Two Dots.... 253 Audrey 09-Sep-14 02:04
Re: About Those Two Dots.... 215 Jon Ellison 09-Sep-14 10:56
Re: About Those Two Dots.... 213 Origyptian 08-Sep-14 22:13
Re: About Those Two Dots.... 250 Jon Ellison 07-Sep-14 11:53
Re: About Those Two Dots.... 209 Origyptian 07-Sep-14 17:21
Re: About Those Two Dots.... 269 Jon Ellison 07-Sep-14 18:15
Re: About Those Two Dots.... 191 Origyptian 07-Sep-14 18:24
Re: About Those Two Dots.... 227 Jon Ellison 07-Sep-14 18:27
Re: About Those Two Dots.... 253 Jon Ellison 07-Sep-14 18:52
Re: About Those Two Dots.... 230 Origyptian 07-Sep-14 19:08
Re: About Those Two Dots.... 188 Jon Ellison 07-Sep-14 19:12
Re: About Those Two Dots.... 224 DScribr 07-Sep-14 22:10
Re: About Those Two Dots.... 240 Origyptian 07-Sep-14 22:53
Could you link to some? 234 Skatha 08-Sep-14 06:17
Re: About Those Two Dots.... 228 DScribr 08-Sep-14 08:41
Re: About Those Two Dots.... 246 Jon Ellison 08-Sep-14 09:26
Re: About Those Two Dots.... 188 Origyptian 08-Sep-14 15:00
Re: About Those Two Dots.... 221 DScribr 08-Sep-14 15:13
Re: About Those Two Dots.... 280 Jon Ellison 08-Sep-14 15:45
Re: About Those Two Dots.... 206 DScribr 08-Sep-14 15:58
Re: About Those Two Dots.... 177 Jon Ellison 08-Sep-14 16:11
Re: About Those Two Dots.... 118 Origyptian 08-Sep-14 16:19
Re: About Those Two Dots.... 211 Audrey 08-Sep-14 21:15
Re: About Those Two Dots.... 219 Martin Stower 10-Sep-14 00:27
Re: About Those Two Dots.... 236 Scott Creighton 10-Sep-14 10:19
...Vyse is showing THREE dots... 227 Skatha 10-Sep-14 15:31
Re: ...Vyse is showing THREE dots... 206 Origyptian 10-Sep-14 15:39
Re: ...Vyse is showing THREE dots... 292 Scott Creighton 10-Sep-14 15:55
Re: ...Vyse is showing THREE dots... 210 Skatha 10-Sep-14 17:33
Re: ...Vyse is showing THREE dots... 222 Scott Creighton 10-Sep-14 18:09
Re: ...Vyse is showing THREE dots... 190 Skatha 10-Sep-14 23:54
Re: ...Vyse is showing THREE dots... 236 Scott Creighton 11-Sep-14 08:49
Re: ...Vyse is showing THREE dots... 206 Skatha 11-Sep-14 15:06


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