Like Howard I am a CET and in the day when I was learning, the programs
actively discouraged people with problems like colour blindness.
Almost all the courses were technical or math related and no thought was
given to human factors or access for people with impairments.
I would hope that things are a bit better now.
I know that you can get the ring back on by feel having done the same
kind of thing many times working on objects that are not visible while
being worked on.
Products like locktite or Krazy glue will require a reasonable level of
eye-hand co-ordination and may be beyond what your vision will allow.
In essence what you are trying to do is stop the ring from spinning off.
This can be done by inserting something into the threads while the parts
are being assembled or by applying some glue like substance that will
bind the ring to the surrounding surface.
The problem with the various solutions to this point are that they
require knowing how much product you get on the parts and being able to
assemble them while touching almost nothing of the parts being assembled.
If you go to a local hardware store or Home Depot I am sure the staff
would be willing to glue the part in place for no charge if you buy the
product.
This is a fix that should only take seconds to a few minutes and is not
technically demanding.
Of course this would require you to drag your scanner out to the local
hardware store or Home Depot.
On 2021-04-21 12:17 a.m., Karen Lewellen via talk wrote:
Okay Howard.
Explain how you would tell these apart if blind?
What does your engineering background, since you reference here, teach
you about working via touch alone?
That is my situation here. I must be able to safely apply this,
without seeing its shade onto an extremely small space.
Or, I can take this scanner and this ring to a business and pay
someone to replace the ring.
if so, where?
Karen
On Tue, 20 Apr 2021, Howard Gibson via talk wrote:
Karen,
I am a mechanical designer and drafter. I am an engineering
technologist, certified by OACETT (http://oacett.org).
Ask about threadlockers in the hardware store. The really popular
one is Loctite 242, which is a lubricating, medium strength
threadlocker which is blue in colour. This is very nice stuff for
mechanical assembly. The lubrication gives you better control over
tightening torque, which is really cool if you are using a torque
wrench. :) Alternate threadlockers can be sealing or wicking.
Wicking might be very nice for you, but you probably won't find this
stuff in a regular store. Most threadlockers are based on Military
Standard MIL-S-46163A, and several manufacturers make equivalent,
compliant stuff. The colours are part of the standard. Purple is
low strength, blue is medium, and red is high strength. The blue,
medium strength is good. The red, high strength is difficult to
remove without damaging things.
The regular Loctite threadlockers can be very nasty around plastic
electronics like connectors and PCB components. Be very, very
careful to apply it only to metal components. I have had some nasty
experiences with this.
Consider usng Krazy glue, and wicking it into the thread. If you
don't glue your fingers together, you should be fine. Look for a thin
cyanoacrylate glue. The thick, goopy stuff won't wick.
On Tue, 20 Apr 2021 23:30:21 -0400 (EDT)
Karen Lewellen via talk <[email protected]> wrote:
i feel better that i can place some of the locktite on the ring,
then put
it into position.
Will seek it at walmart or Home depot.
On Tue, 20 Apr 2021, James Knott via talk wrote:
On 2021-04-20 10:31 p.m., Karen Lewellen via talk wrote:
I have the ring.
I even have more than one.
so you put this liquid on the ring and it sticks in place?
Where do I get this product?
Typically hardware stores, etc.. Walmart has it.
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