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mm size for coil waste issues  
 

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Valued Member
41 Posts
Posted 01/09/2017   2:13 pm  Show Profile Bookmark this reply Add joker to your friends list  Get a Link to this Reply
hi angore,

thank you again, yes I will definitely order this item :).

perhaps someone could just help me with my last question on this concerning not performated sides and coil waste (see last post)?
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Valued Member
United States
100 Posts
Posted 01/09/2017   6:33 pm  Show Profile Bookmark this reply Add Caper123 to your friends list  Get a Link to this Reply
angora: per Scott Specialized...
631-42 is 19 1/4 x 22 1/2
604-06 is 19 1/4 x 22 1/2
597-03 is 19 3/4 x 22 1/4
596 is 19 1/4 x 22 1/2
594-95 is 19 3/4 x 22 1/4
581-91 is 19 1/4 x 22 1/2
578-79 is 19 3/4 x 22 1/4
575-77 is 19 1/4 x 22 1/4
551-73 is 19 x 22

That should answer your general question.
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Valued Member
41 Posts
Posted 01/10/2017   04:31 am  Show Profile Bookmark this reply Add joker to your friends list  Get a Link to this Reply
hello caper and thank you very much! that helps me until I will have the Scott Specialized.

just what about the perforation thing with coil waste? I mean, coil waste here is mostly perf. 11, but what about stamps with 1 border from a stamp sheet? so all sides are perf 11 except one. Or can these sheet stamps just never be this coil waste? (Scott no. in your list)
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Valued Member
41 Posts
Posted Today  5 Hrs 16 Min ago  Show Profile Bookmark this reply Add joker to your friends list  Get a Link to this Reply
Hello again,

sorry for recalling this older topic, but my question for which I started this thread is still there and "following" me while creating my collection with Washington-Franklin these days.

First: I understood well that measuring is just one thing to consider and experts have many other. And I understood that I have to read and learn for years.

But my general question about measurement and coil waste: Are the sizes (like given here by Caper (Scott) quite fixed or is there a range? I mean if the sizes are given in steps of 0.25mm I would normally suppose that they are very fixed.

Example: In my case I have here a stamp that COULD be a 596, as it is perf 11 and has a bigger size than flat (a bit more than 19mm and a bit more than 22mm). But it's not these famous 19,25mm x 22,5mm, but perhaps 19,1mm x 22,3mm. Is there a rule of thumb from experts what you would do in my case?

option a) be sure that it's flat, so don't think about 596 because it's just not the size
option b) be unsure and consider if it could be any rotary (known or unknown)

So I just want to know if the sizes are pretty fixed or if any flat could also be larger or any rotary could also be smaller....

(by the way: I now own a Precision US Specialty Perforation MultiGauge, but the "tool" for rotary vs flat is just wrong there, the measuring box is too small, so 20mm are 19,8mm, but the ruler on the gauge is correct)
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Edited by joker - Today 5 Hrs 12 Min ago
Valued Member
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United States
420 Posts
Posted Today  4 Hrs 22 Min ago  Show Profile Bookmark this reply Add angore to your friends list  Get a Link to this Reply
Is there usb microscope that can measure to at least a tenth of mm. I realize it probably needs a platform to move the object.
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Al
Pillar Of The Community
United States
1111 Posts
Posted Today  3 Hrs 6 Min ago  Show Profile Bookmark this reply Add littleriverphil to your friends list  Get a Link to this Reply

Quote:
Is there usb microscope that can measure to at least a tenth of mm. I realize it probably needs a platform to move the object.


I use Irfanview 32 bit to edit my scans, and it will measure an original scan accurately in pixels, inch to .000, degree to .000 and mm to .000. more accurately than I can with a magnifying glass and clear metric ruler.

http://www.irfanview.com/
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Edited by littleriverphil - Today 2 Hrs 48 Min ago
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Posted Today  2 Hrs 56 Min ago  Show Profile Bookmark this reply Add 51studebaker to your friends list  Get a Link to this Reply
littelriverphil,
The accuracy of the software which manipulates your images is not as critical as the accuracy of the hardware (scanner) you are using. Even the area in the platen (scanner glass) in which you scan can effect the accuracy of any measurement which might be taken. This is because consumer scanners use a single CCD (camera) and in front of it is a lens (think fisheye). So stamps positioned away from the CCD/lens will not be as dimensionally accurate as those which are positioned directly in front of it.
Don
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Valued Member
41 Posts
Posted Today  1 Hr 27 Min ago  Show Profile Bookmark this reply Add joker to your friends list  Get a Link to this Reply
Hello,
yes I have a good measurement :) but this is not my point here. The 19.1 mm can also be 19.08 mm or 19.17 mm ... it was just an example that a stamp is just a bit larger than 19 mm but smaller then 19,25 mm, just between, but not too close to 19 and not too close to 19,25 :-). Also without microscope you can see with a loupe that the stamp lies between there. So what I hope to hear, of course, is that every stamp that is "obviously a little bit larger" than the flat size can probably rotary, like the 596 (which is an example, but I have this case here). I measured the mm size where I got this little difference - when I take my 499 flat template, it's just distinctly larger.

But as there are these very exact sizes with 0.25 mm steps, e.g. in the Scott, for the rotary coil waste, then these sizes seem to be quite fixed, I would suppose as a beginner. That's the core of my question here, if the flat size is quite fixed or the rotary or both or none (due to the fabrication technique).

(... and you can see the wrong rotary / flat box on the MultiGauge with normal eye and a ruler.)
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