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Blog entry by NH_Hermit posted 11-15-2014 05:31 PM 1120 reads 0 times favorited 11 comments Add to Favorites Watch

I need some help.

I made my wife a frame for her embroidery that she can use while sitting on the couch. Right now, I have it designed so she can position the working frame in any direction her pea pickin’ heart desires. The only problem she has is the position of the arms will not hold when she puts some weight on the frame, no matter how much she tightens the bolts.

I think I know the solution, but don’t know what to call it or where to find it. I think I want something like an unthreaded “T” nut (or washer) that has a grooved flange that I can embed into each opposing arm. Does this question make any sense?

I’ve added a couple of photos as further explanation.

Thanks in advance, John

-- John from Hampstead



11 comments so far

View Rob's profile

Rob

704 posts in 2539 days


#1 posted 11-15-2014 05:58 PM

How about roughing up the mating surfaces of the joints? Just inserting a roughed up metal washer or rubber washer between the two pieces of wood in a joint might do the trick. Or modify the joints so they have interlocking positive stops every few degrees of rotation. You could also replace the knobs with cam levers so they’re easy to get really tight.

-- Ask an expert or be the expert - http://woodworking.stackexchange.com

View Grumpymike's profile

Grumpymike

1919 posts in 1783 days


#2 posted 11-15-2014 06:02 PM

Yep, I think you have answered your own question … I had a “swing arm lamp” that wouldn’t stay put … found some washer looking things that had grooves on one side … epoxied them to each arm with the grooves out and inserted a longer screw … they “lock” together and stay.
Now for the $64000 question, ... what are they called??? in the 60’s they would have been ‘Groovy washers’.
I got them years ago at Tacoma Screw Products … Mc Feely’s carries lots of fasteners & stuff, 1-8oo 443-7937
Good luck and let us know how your search went.

-- Grumpy old guy, and lookin' good Doin' it. ... Surprise Az.

View JoeinGa's profile

JoeinGa

7489 posts in 1475 days


#3 posted 11-15-2014 06:03 PM

rubber washers between any (or all) of the sliding surfaces might make them stick better.

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View Grumpymike's profile

Grumpymike

1919 posts in 1783 days


#4 posted 11-15-2014 06:07 PM

Go to Tacoma Screw Products on line and look up Nord-Lock washers … Page 4 in the washer section

-- Grumpy old guy, and lookin' good Doin' it. ... Surprise Az.

View TheDane's profile

TheDane

4997 posts in 3131 days


#5 posted 11-15-2014 06:57 PM

Nord-Lock washers are also available from Fastenal and Grainger

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View NH_Hermit's profile

NH_Hermit

394 posts in 2564 days


#6 posted 11-15-2014 08:08 PM

Great!!! Nord-Lock looks like the answer – but I wish they were called “Groovy washers”

Thanks a bunch.

Rubber washers might also work and be a bit cheaper.

-- John from Hampstead

View NormG's profile

NormG

5510 posts in 2472 days


#7 posted 11-15-2014 10:04 PM

Grooved washes would be best

-- Norman - I never never make a mistake, I just change the design.

View stefang's profile

stefang

15512 posts in 2802 days


#8 posted 11-15-2014 10:05 PM

Hi John. I was thinking that you could just hold the arms up for her while she works. I’m sure she would appreciate that. Otherwise the locking washers sounds like the best solution as your wife could tight them securely without using undue force.

-- Mike, an American living in Norway.

View Tim Dahn's profile

Tim Dahn

1511 posts in 3033 days


#9 posted 11-15-2014 10:40 PM

A leather washer may work also

-- Good judgement comes from experience and experience comes from poor judgement.

View NH_Hermit's profile

NH_Hermit

394 posts in 2564 days


#10 posted 11-16-2014 12:44 PM

Mike, I told my wife about your suggestion. She liked it a lot – a tad more than I did. I’m trying the Nord-lock washers. But I do like the beard. Getting ready for the Norwegian winter?

Tim. Leather washers are an idea I had not thought of.

-- John from Hampstead

View stefang's profile

stefang

15512 posts in 2802 days


#11 posted 11-16-2014 06:58 PM

Originally I thought it would hide my ugly face, but it just made me more ugly! A lot of my projects work out that way.

-- Mike, an American living in Norway.

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