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Laser winding stick?

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Forum topic by Sylvain posted 10-23-2018 11:15 AM 652 views 0 times favorited 14 replies Add to Favorites Watch
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Sylvain

748 posts in 2676 days


10-23-2018 11:15 AM

Topic tags/keywords: tip

This is an Idea prompted by SMP forum

I now have difficulties to focus simultaneously on the two winding stick at the ends of a long board.

Although one can use a tiny hole in a card (old credit card) to enhance ones “depth of field”.

So what about using a cheap laser level?

-- Sylvain, Brussels, Belgium, Europe - The more I learn, the more there is to learn


14 replies so far

View Bill_Steele's profile

Bill_Steele

435 posts in 1909 days


#1 posted 10-23-2018 05:58 PM

what about painting one white and one black—or covering the top of the back one with blue painters tape?

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John G.

19 posts in 1383 days


#2 posted 10-23-2018 07:07 PM

Contrast is important, and a lot of that depends on the lighting in your work area. Black is not always a good contrast color. Blue tape, as suggested, a “neon” color – just something not white and not black.

Cheap lasers are good, but “everything” must be leveled before that can be useful. All you’re looking for is a difference between one close surface and a farther surface, not an absolute level measurement.

-- The next brick house on the left. Montgomery AL

View lumbering_on's profile

lumbering_on

567 posts in 667 days


#3 posted 10-23-2018 09:37 PM

I have a laser level that I’ve used once or twice. It works well, but the setup time is significant. Not sure you would want to be doing it just for this.

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runswithscissors

2874 posts in 2202 days


#4 posted 10-23-2018 09:54 PM

As long as the laser is true to the end it’s sitting on, does it really matter whether it’s level? It will still show you whether the other end lines up. If I’m right, I think it’s a good idea. Certainly would be easy to try it out.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

View shipwright's profile

shipwright

8133 posts in 2975 days


#5 posted 10-24-2018 12:11 AM

I have to say I don’t really get “making” winding sticks. Any time I’ve had a need I just found any two straight sticks I had around.
Anyway my thoughts on laser use would be do you need sticks at all? Could you not just shoot the laser ( the dot, not the line) down the face of the board from the centre at one end. Turn it from side to side. If the line shows all the way down the plank, it’s straight and if it stays that way from both ends, it’s in plane.

..... but a couple of straight sticks is still easier.

-- Paul M ..............the early bird may get the worm but it’s the second mouse that gets the cheese! http://thecanadianschooloffrenchmarquetry.com/

View Sylvain's profile

Sylvain

748 posts in 2676 days


#6 posted 10-24-2018 09:49 AM

Thank you all for the comments.

I have used the word “laser level” because I had no other word to describe the device which makes a straight line of light.

Bill_Steele & John G.
this was just a quick picture to show the idea. My other stick has two white patches (Paul Sellers winding sticks). I should have used the other one.

John G. You right right we don’t need an absolute level.

Lumbering-on
the idea would be to have the laser device attached to the other stick in such a way that the setup is as easy as with a normal pair of sticks.

Runswithscissors, You are right; see answer to John G & Lumbering-on

Shipwright: I am not sure this procedure would detect twisting.
see ruled surface

Making the winding sticks was a nice little project but two battens would do if needed.

A quick search on the Web shows this small device at 17.5$

-- Sylvain, Brussels, Belgium, Europe - The more I learn, the more there is to learn

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shipwright

8133 posts in 2975 days


#7 posted 10-24-2018 03:22 PM

Sorry, my laser level will rotate back and forth in a plane. That’s what I was referring to.
If you set up with the line showing all the way down the board in the centre and then panned it right and left (in plane) it would leave a twisted board at some point, either because a twist up blocked it or because a twist down dropped below it.

It was just theory, I wouldn’t expect anyone to actually use it. :-)

In hindsight the line would work even better, no panning required.

-- Paul M ..............the early bird may get the worm but it’s the second mouse that gets the cheese! http://thecanadianschooloffrenchmarquetry.com/

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Sylvain

748 posts in 2676 days


#8 posted 10-24-2018 05:11 PM

Shipwright, sorry, it seems I did not completely understood.
You system might work in theory, but I see some practical difficulties.
E.g. :
You might need one person operating the laser and another one looking at the other end of the board.
How to move the laser just at the surface of the board and parallel to the reference end of it?

With a first winding stick incorporating the laser line device laid at one end and a second stick laid at the other end, you could see the result without further manipulation.
And for those of us who could not focus on the end of the board, it is possible to make a few steps to have a look at the line on the second stick. (One must go and laid the second stick anyway).
As the light ray is above the surface, it would work even if the board is slightly bowed.
It would also work with a rough sawn board if one just planed the two extremities for twist testing before further planing.
Simple and easy to use, even with a not perfect vision.
It seems easy and cheap to build: a hole in the middle of one of the winding stick to insert the device, with a screw to prevent unwanted rotation, a (recycled) support for two AAA batteries and a little switch.
Of couse one would first need to calibrate the system e.g. with two level surfaces (one for each stick.)

-- Sylvain, Brussels, Belgium, Europe - The more I learn, the more there is to learn

View SMP's profile

SMP

82 posts in 83 days


#9 posted 10-24-2018 05:58 PM

FYI, I took apart a cheap laser level I had, so now need to figure out a way to mount it to a board and then index it. Maybe rest on some MDF to level the laser. The main problem is size of the module and battery pack etc. But I suppose interesting for a first trial. If it works I won’t need to hunch down and close one eye.

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Sylvain

748 posts in 2676 days


#10 posted 10-24-2018 08:02 PM

SMP, I would be happy if this idea makes life easier for some of us.
I am curious to see the first realisation.

For usage as winding sticks, the tested board doesn’t need to be level.
But for calibration, put the stick with the laser on an horizontal surface and the second stick also on horizontal surface and than adjust the laser to have an horizontal line on the second stick. The two winding stick should be parallel as far as possible.

-- Sylvain, Brussels, Belgium, Europe - The more I learn, the more there is to learn

View Aj2's profile

Aj2

1806 posts in 1975 days


#11 posted 10-24-2018 09:05 PM

Your over thinking.The simple beauty of winding stick just cannot be improved I’m in the boat as shipwright two pieces of wood with parallel edges is all I needed.
It been awhile since I’ve actually need to use winding sticks I think it was for my assembly table that I set up and take down.
Not everything can be improved with technology. That what I’m thinking :”

-- Aj

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shipwright

8133 posts in 2975 days


#12 posted 10-24-2018 11:05 PM

Sorry Sylvain, i was just letting my mind wander.
It was a good exercise but I agree, not very practical.

-- Paul M ..............the early bird may get the worm but it’s the second mouse that gets the cheese! http://thecanadianschooloffrenchmarquetry.com/

View jbay's profile (online now)

jbay

2767 posts in 1076 days


#13 posted 10-24-2018 11:13 PM

Just for conversation,
For the opposite winding stick, it may be better to have a flat board sticking up with a line across it to match the laser line to. That would make it easier to read the line “Line on Line”

-- “Hanging onto resentment, is letting someone you despise live rent-free in your head.” (Ann Landers)......

View Sylvain's profile

Sylvain

748 posts in 2676 days


#14 posted 10-25-2018 08:09 AM

AJ2
I agree with you that If you have good eyes, proper lighting and background, this is not at all necessary.
This idea was prompted by SMP expressed need.

I will avoid using anything running on battery where possible.
Many things are now made unnecessary complicated (e.g. beard trimmer with digital indication of depth of cut).

A techno geek would use a digital clinometer to find the twisting in tenth of a degree.

JBay You right.
I have no doubt those who want to make one will improve the design.
I will not produce those laser winding sticks.

The line-laser vendor (link above) has other laser models (cheaper ones and more expensive ones). He also has models which can be focused (might be better) and with various light colors.
There certainly are other vendors; I didn’t spent more time to search on the web..
I have no connection with any laser manufacturer/vendor.

Anybody using laser should take precautions (as per the manufacturer notice) to prevent eyes damages.

I din’t really make one; I just made a picture to illustrate the concept.
I would be happy to see realizations, if any.

-- Sylvain, Brussels, Belgium, Europe - The more I learn, the more there is to learn

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