Robin,

The Tape 
King<http://www.caretec.at/Products.31.0.html?&cHash=3ebd30f8a78c0bc846e2a0770115efc5&detail=3397>
 is a talking tape measure from an Austrian company called CareTec. They also 
make, I think, talking kitchen scales and canes.
The link will take you to their website which includes a manual for the product.
As for size, the Cobalt at least is not really all that much larger than a 
large carpenters tape, I guess it is larger if you compare the length of the 
tape since a similar sized quality tape which is non-talking probably has at 
least a 25 foot tape and not only a 15 foot tape and you can get 15 foot tapes 
which are more compact, but they also have a narrower, less rigid tape.
The point is that you can’t make a tape with tactile markings which gives you 
1/16 inch accuracy, the click rule or Rotomatic is different since it’s tactile 
in a way down to the half inch or 1 cm on the metric unit, but then the 1/16 or 
1mm accuracy is achieved through the “clicks” on the click rule. These are 
achieved by a spring-loaded pin producing an audible click which you can also 
feel as you push the threaded rod in or out of the housing and the pin clicks 
in place in each thread. With the Rotomatic the same is accomplished by turning 
the stop along the threaded rod, each full, 360 degree turn is 1/16, a half 
turn is 1/32 and a quarter turn is 1/64. Each unit has a lock screw so you can 
lock the measurement you selected into place after you set it  up, they are 
very ingenious devices, extremely precise and very durable.
I typically use my click rule for doing “real” woodworking as in building 
furniture, drawers, Shaker-style doors as you often find on kitchen cabinets 
etc. Here real precision at least to the sixteenth of an inch is necessary.
If it’s more carpentry oriented like doing baseboard, door or window trim, 
framing interior walls or if it involves measurements more than 5 or 6 feet 
long I usually use the talking tape measure.
For very small measurements and machine setup like setting the table saw at a 
certain distance from the blade and if said distance is no more than 3 to 6 
inches I often use my setup blocks/bars which I described. Those are especially 
handy for cutting say 2 ½, 2 ¾ or 3 inch wide strips of hardwood for the rails 
and stiles on a panel door like a raised panel or Shaker-style cabinet door. I 
just use the 1/2/3 inch block which is 3 inches long, 2 inches wide and 1 inch 
thick, if I want 3 inches I use it as is in the proper direction, if I want 2 ½ 
inches I use it the other way and add a ½ inch block, if I want 2 ¾ inches I 
use the 2 inch side and a ¾ inch block etc. My 15-block set goes down to a very 
thin 1/32 inch block, then it has a 1/6 inch block, a 3/32 inch, an 1/8 inch 
etc. I can use a combination of blocks to make up just about anything I want.
There are also digital measuring devices such as digital calipers or angle 
blocks which are available with Bluetooth and where you can then use the iPhone 
to obtain a spoken value.
Barry Wixey from Wixey Tools<http://www.wixey.com/> offers a digital Bluetooth 
angle cube and he also has a table saw fence setup which when properly 
installed shows the distance from the fence to the blade on a display. He is 
currently working on a Bluetooth module which would then send the information 
to his app where it would be spoken.

Best regards,
Sieghard

From: viphone@googlegroups.com <viphone@googlegroups.com> On Behalf Of Robin 
Frost
Sent: Friday, September 20, 2019 8:46 PM
To: viphone@googlegroups.com
Subject: Re: accessible measuring app?

Hi,
What is a Tape King? and funny this comes up as I’d just recently been 
discussing with a friend how amazed I am that no one ever produced a 
retractable metal tape measure with tactile markings sort of like the talking 
one but without the large housing necessary for its talking component more like 
those people in trades use.
I apologize for straying off topic. I’ll be quiet now.
Take good care.
Robin


From: Sieghard Weitzel
Sent: Friday, September 20, 2019 11:42 AM
To: viphone@googlegroups.com<mailto:viphone@googlegroups.com>
Subject: RE: accessible measuring app?

I have been doing woodworking for 20 years and I absolutely agree that a Click 
Rule or talking tape measure are absolutely essential if you want to do stuff 
with any degree of accuracy.
There is also the Rotomatic (not sure if I spell this correctly), it is 
somewhat the same concept as a Click Rule, but I believe instead of pulling out 
a threaded rod which then makes a click every sixteenth of an inch the 
Rotomatic works by the user turning a stop along a threaded rod and it can give 
you accuracy down to a 1/64 of an inch whereas the imperial click rule is 
accurate to 1/16 of an inch and the metric click rule is accurate to 1mm which 
is better than a sixteenth, but not quite as good a 1/32.
Having said this, 1/16 is adequate in a lot of situations and 1mm is of course 
even better.
The Cobalt talking tape measure if set to imperial is also accurate to 1/16 and 
if set to metric it is 1mm. I like the fact that you can include the length of 
the housing in your measurement if, for example, you want to measure the inside 
of a cabinet or drawer, you can also measure something and push a button to add 
that measurement to memory, then measure the next item and add it and so on and 
in the end push a button to get a total. This can be handy if you do things 
like baseboard trim, they usually come in 16 foot length so I could go and 
measure several walls and add up each measurement until I get close to 16 feet 
and this way I can minimize waste. The Cobalt can also be set to read out in 
inches, feet and inches, e.g. 25 inches or 2 feet 1 inches, on the metric side 
you can do metres, centimetres or millimeters, e.g. 1 metre and 10 centimetres 
can also be read as 110 centimetres or 1,010 millimetres. I assume that Tape 
King can maybe do the same, but I don’t know. Max, could you contact me 
off-list as I’d love to learn more about Tape King.
I have both a couple of Cobalt tape measures, I have I think 4 imperial click 
rules and 1 metric because when I am really working on a larger project I often 
will use 2 or 3 at the same time, e.g. if I want to measure how far away from 
the edge of a sheet of plywood the rail of my track saw is especially if I am 
cutting along the 8 foot length of the plywood, it is much better to have a 
click rule on each end than to run around with a single one.
There is absolutely no way an app is going to be accurate enough for any sort 
of good woodworking and I highly doubt you would see a single professional and 
sighted woodworker use an app like the Measure app over a tape measure even 
though they could probably use it with much better precision in terms of lining 
up start and end point. The fact is that if you want to do any sort of 
woodworking it will be an expensive hobby.
Lastly, don’t forget the usefulness of setup blocks/bars like these:
15 piece setup bar set<https://www.chipsfly.com/product/12-235.html>
This 15-piece set is one of the most complete and best I have found, I also 
have a couple of smaller 5 or 6 piece ones which you can get in metric or 
imperial and if I know I want to rip a 2 inch strip off something on my table 
saw or I want to set the height on my router bit to half an inch than using the 
appropriate setup bar is way easier than trying to set the table saw fence with 
the click rule.

Regards,
Sieghard

From: viphone@googlegroups.com<mailto:viphone@googlegroups.com> 
<viphone@googlegroups.com<mailto:viphone@googlegroups.com>> On Behalf Of Robert 
Wright
Sent: Friday, September 20, 2019 12:39 AM
To: viphone@googlegroups.com<mailto:viphone@googlegroups.com>
Subject: RE: accessible measuring app?

Unfortunately, this address is no longer valid.

******If we can't look at ourselves, and ask, why?  then where does the 
learning start?***

From: 'RobH.' via VIPhone
Sent: Friday, September 20, 2019 1:16 AM
To: viphone@googlegroups.com<mailto:viphone@googlegroups.com>
Subject: Re: accessible measuring app?

Fascinating, hate to think of the possible price.

robH.
----- Original Message -----
From: "Richard Turner" 
<richardturne...@outlook.com<mailto:richardturne...@outlook.com>>
To: <viphone@googlegroups.com<mailto:viphone@googlegroups.com>>
Sent: Friday, September 20, 2019 1:44 AM
Subject: Re: accessible measuring app?


The below came from the Vision Aware site of AFB.
The Click Rule

The Click Rule is a metal tubular device slightly longer than 7 1/2 inches. A 
7-inch threaded rod is inserted into the tube. A
knurled locking knob is screwed into the top of the threaded rod through a long 
slot that has been machined into the tube.

[closeup of someone using the Click Rule to measure a board]

The Click Rule

As the threaded rod is extended into and out of the tube, a clicking sound can 
be heard at 1/16-inch intervals. The threaded rod has
raised threads every 1/2 inch.

The metal tube has two flat rectangular stops or fences mounted on it. One stop 
or fence is located precisely at the open end of the
tube and the raised thread rod protrudes through it. The other stop or fence is 
positioned exactly six inches along the tube from
the stop at the open end of the tube.

The Click Rule comes with three 12-inch extension rods that screw into the end 
of the Click Rule raised thread rod and into each
other, enabling accurate measurements at 1/16-inch intervals, from zero to four 
feet. Additional extension rods can enable
measurements beyond four feet.

[The Click Rule with a one-foot extension rod in place]

Click Rule with a one-foot extension rod

The Click Rule can be purchased from the National Federation of the Blind Online
Store<http://secure.nfb.org/ecommerce/asp/default.asp> and from Community 
Advocates Inc., P.O. Box 83304, Lincoln, NE 68501-3304;
402-486-3091<tel:402-486-3091>.



Richard

Always look out for #1, and be careful not to step in #2.


On Sep 19, 2019, at 4:57 PM, David Andrews 
<dandrews...@comcast.net<mailto:dandrews...@comcast.net>> wrote:

The NFB used to sell them -- don't know if they still do.

Dave

At 06:25 PM 9/19/2019, you wrote:
Max,

I haven't been able to find anywhere I can purchase a click ruler.
I have a 25ft "braille" steel tape, but it only has markings every 6
inches which is not really accurate enough for my work, and I haven't
found any sources for something more accurate.

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