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Making Rope

Rope rope walk

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12 replies to this topic

#1
ca.shipwright

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I built a rope walk on the MS version to see if rope making is as much fun as it seems.

The question is what size thread in a 3-strand lay will yield what size rope?

Any help will be greatfully accepted.

 

Thanks


Edited by ca.shipwright, 23 December 2016 - 05:53 PM.

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ca.shipwright

Michael Zemmel

Midlothian. VA

http://modelshipworl...ight-corel-160/

"Buy all your toys before you retire"

 


#2
druxey

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The result will depend on your thread size. You will need to make up a trial length of line and measure its diameter. This (at scale size), x 3.1416 will give you the line size.


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#3
Jaager

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This I did using a Byrnes rope walk.  I will have to play with the setup

to get the warps more acute but that should not affect these data significantly.

 

 

      rope 2.jpg

 

 

 

 

 

100/3   =   100 LEA linen yarn  spun up using 3 yarns.

 

The diameter was measured using a lacquered dowel and counting the

closely packed rotations in an inch.


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#4
ca.shipwright

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Thanks Jagger,

This is exactly the info I needed.

What does the dot 2 indicate on your linen number? I am not familiar with linen thread. Although, I can figure out that the thinner the thread the higher the number.

 

Regards


Edited by ca.shipwright, 23 December 2016 - 08:07 PM.

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ca.shipwright

Michael Zemmel

Midlothian. VA

http://modelshipworl...ight-corel-160/

"Buy all your toys before you retire"

 


#5
Jaager

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The linen supplier twists up the fibers into yarn.

This is sold as LEA - which is essentially an obsolete measurement - it has been replaced -

but I have not mentally absorbed it. Since I have obtained about as much and as wide a 

variety of linen yarn as is obtainable now, I don't need to deal with the change.

And yes,  with LEA - the larger the number - the smaller the yarn.

 

 

From our perspective  the hope would be that  70.2  LEA yarn would be 2 lines with a final size of 70,

but alas -  what it means is

Two 70 LEA yarns twisted together and sold as a loosely twisted  thread..

 

If unraveled  it would be   two 70 LEA yarns - not two 140 LEA - which would be nice for us

except -  twisting up the 62 LEA is difficult - it breaks easily - so that may be the practical limit.

 

I finally got why the old guys favored linen - the linen wrapping on Egyptian mummies is still largely intact.

It does not readily oxidize.


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#6
jbshan

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VERY roughly, three strands of x diameter will yield one line of 2x.


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#7
ca.shipwright

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Thanks everyone. I think I have found a source in Poland or Belgium.


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ca.shipwright

Michael Zemmel

Midlothian. VA

http://modelshipworl...ight-corel-160/

"Buy all your toys before you retire"

 


#8
ca.shipwright

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Back again; and thanks again for all your help.

 

Well, I layed up some rope using the Model Shipways prototype. It worked just as advertised. The yield is about 80% of the original length which is what MS advertised. You are only limited in length by how far apart you put the two ends. I used a long piece of trim material- about 80 inches and got a piece of rope 60 inches. I CA'ed the ends and cut the rope free OUTSIDE of the CA. I know what you're thinking. No, I didn't cut inside. I made about 20 feet altogether in the first run. Very well satisfied with the effort. I really want to set up on the garage floor and try to do a piece about 20 feet long.

 

Then on to the serving machine built after our moderator's design. This worked extremely well with very little talent required.

 

I only have on complaint about this whole operation - my right index finger is about to fall off. I am going to see in I can alter the setup to motorize these two systems. Somewhere I recall someone putting a Phillip's head screw in the twist end action of a rope walk and use an electric drill to power the system and do the same for the other end since this is a one, two step operation. Another solution would be a sewing machine motor with a foot pedal. The motor attached to a shaft with a u-joint or some other shaft connector, like what Dremel uses in their tools. The same motor could also power the serving machine as well. But, I think this will have to be a belt driven pulley system to allow the line being served to pass through.

 

As a former macro woodworker, you can probably guess that like all the rest of the world's woodworkers, I am jig crazy and will build anything I can that I think I will find useful.

 

I wound up using some DMC crocheting cotton thread. The resulting rope is a little oversized, but I can live with this rope for the forstays while I wait for my linen from Poland.

 

Pictures attached.

 

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ca.shipwright

Michael Zemmel

Midlothian. VA

http://modelshipworl...ight-corel-160/

"Buy all your toys before you retire"

 


#9
ca.shipwright

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More Pictures

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ca.shipwright

Michael Zemmel

Midlothian. VA

http://modelshipworl...ight-corel-160/

"Buy all your toys before you retire"

 


#10
ca.shipwright

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More Pictures- having trouble resizing

 

Happy New Year everyone!

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ca.shipwright

Michael Zemmel

Midlothian. VA

http://modelshipworl...ight-corel-160/

"Buy all your toys before you retire"

 


#11
Moxis

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#12
hornet

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When I first constructed my rope walker (see link below) I intended it to be hand powered. This proved to be impractical so I ended up using the dial/variable speed controller from my Domanoff serving machine coupled with an inexpensive motor from an electronics store. I had intended to use a sewing machine motor and control pedal but I found that once the correct speed is selected there is little need for adjustment - just switch it off when complete - therefore a foot pedal was unnecessary. I know that you can get these type of dial/variable type speed controllers from any electronic store. Maybe this would be a simpler method you could consider.

http://modelshipworl...ed-rope-walker/

Happy New Year to All :)

Steve

Edited by hornet, 01 January 2017 - 05:13 AM.

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Hornet

 

Current Build: - Caldercraft - HMAV Bounty

 

Completed Ship Builds:

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                                       On the shelf awaiting construction: - Caldercraft  - HM Bark Endeavour 


#13
ca.shipwright

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Well, I got tired of the short ropes that came out with a 8 foot board so I added some length to see what happened. I was able to get almost 90% yield out of this lash-up. The additional piece was a piece of IKEA kick board for cabinets. It has a routed groove on the back. I added a tenion to the bottom of the moving end to fit the grove. Now I don't have to run back and forth to keep it from falling off the board.

 

And, I have one more kick board!

 

Pictures attached.

 

Regards

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Edited by ca.shipwright, 17 January 2017 - 10:43 PM.

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ca.shipwright

Michael Zemmel

Midlothian. VA

http://modelshipworl...ight-corel-160/

"Buy all your toys before you retire"

 





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