NT9K Key #7 - Solid Surface Sideswiper - Ruby Stairsteps

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Postby NT9K » Thu Mar 26, 2009 11:21 am

Thanks Curt, yes a sideswiper works side to side with you controlling the length of the dits and dahs manually. A dit can be made on either side. Mostly I use the same motion and character formation as a bug user does with dits made with a right to left motion using my index finger. I mostly use my thumb and a left to right motion for the dahs. I like the index finger making my dits, because I can make faster dits with my index finger than any other.

Using a sideswiper will let you go longer without tiring or glass arm setting in. I have very poor muscle tone and have pain in my hands. Sometimes the sideswiper will let me get on when I couldn't any other way.

Yes, both posts on the sideswipers are shorted together. I generally run one wire from the lever to one binding post and then one wire shorts both adjuster posts and runs to the other binding post.

Try it sometime, you can make a simple sideswiper at home out of a steak knife or a hacksaw blade. If you would like to see more photos of sideswipers look on the SSN website. That is sideswiper net.
http://sideswipernet.googlepages.com/home
73, Bill - NT9K
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Postby ku8l » Thu Mar 26, 2009 2:20 pm

Thanks Bill..

I think I'll give it a try using my Vibroplex keyer paddle.

I'm gonna make a two finger one also since I can go pretty good that way already.

Tried out my old Hi Mound plastic top bug before the sprint and it sounds so bad, i went back to the straight key.

Thanks for the great pix and beautiful craftsmanship. I have a pretty complete machine shop capability here so will have some fun..

Curt
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Postby NT9K » Thu Mar 26, 2009 2:30 pm

Thanks Curt, I don't have much of a machine shop. I'm converting a spare bedroom into a workshop, but don't have any benches built yet and not too many tools. I have a cheap drill press and a table saw, scroll saw, but do most of my work with the dremel tool.

Those sideswiper pictures came from this website:
http://nt9k.radiotelegraphy.net/index.htm
I'm starting on a long lever pump key made out of that same red material. The photos are at the bottom of the straight key page. If you like, I have some hand made drawings of the amplidan on my own website. The page is slow to load but the link is:
http://www.skccgroup.com/sprint/wes/results/nt9k/
The drawings are at the bottom of the page.

If you need parts sources, I can help with that too.
73, Bill - NT9K
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http://www.nt9k.com
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Postby kb4qqj » Sun Mar 29, 2009 3:23 am

Fantastic work Bill.
I agree it should be a QST article.
Couple questions.
Have you ever tried tapping/threading the Corian®?
If so, did you use oil or water for lubricant/cooling?
Where the lever goes into the block, is it sandwiched or recessed slightly to prevent up and down movement?
It looks like the two screws would do it without having to recess/route the block.

Randy _ KB4QQJ
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Postby NT9K » Sun Mar 29, 2009 11:45 am

Thanks Randy, I don't use any cutting oil or lubricant to tap threads in solid surface. They tap real easy, like a hard wood. No, the lever is not recessed. It is sandwiched together and has 2 screws running through it to prevent any up and down movement. This key does have some tapped screw holes for the sandwich block. There are 2 screws that run up through the base from the bottom, that hold the sandwich blocks to the base.

Of course I did use cutting oil on the brass adjusters, but the corian or avonite won't need it.
73, Bill - NT9K
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http://www.nt9k.com
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How to make an exquisite amplidan

Postby N0SSS » Mon Aug 10, 2009 8:31 am

Wow!

I would really like to learn how to make an amplidan using techniques like this! Please show us how you do it. I could really appreciate using a big key made with my own hands. And to think it might actually be so beautiful.

Adam NØSSS
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Postby NT9K » Tue Aug 11, 2009 11:10 am

Thanks Adam, give it a try, you can do it. You don't need a fancy workshop either. Simple hand tools will work fine. I have started such a page here:
http://nt9k.radiotelegraphy.net/straight_keys.htm
Scroll down.

Email me if I can help you or if you need sources for parts.
73, Bill - NT9K
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http://www.nt9k.com
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Postby G0KZZ » Tue Aug 18, 2009 9:15 pm

Arghhhh!

You make it look soooo easy Bill...

And I thought that my micro-switch with a coat button glued on was a masterpiece! :?


Best 73, Mark.
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