I'd like to make a homemade log marker for chainsawing firewood.?

There are products on the market that are basically a wheel attached to a spray paint can.  As you roll he wheel over a log, it marks the log every X inches.  You need to buy different wheels for different marking lengths.
Basically, the plan is to have a log marked every X inches so we know where to cut it for perfect firewood length logs. 

Alternate tools available are measuring sticks that attach to your saw, but they are awkward and limit your saw to only making firewood (you can't use it to cut down or limb up the trees with the attachment).
I normally use the saw length (on my 18" saw), or the body length (on my 32" saw) for a guide, but a spraypaint thingy would be much simpler.

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How about a can of lane marking paint on a stick, put a pin on the end of the stick.

Stick pin on stick in trunk, whacking valve on can - spot made.
Pick stick up and move pin into spot.
Whack next spot.

I reckon you could get a fair turn of speed up with that
Essentially the same as my solution, just made into a single tool.... Not sure whether it would be easier to use or not, but it would certainly seem to be workable.

Of course string, pulled taut, would work too.
I wasn't claiming originality, I was just riffing on the theme ;-)
radycal4 years ago
The ONLY thing I've ever found that worked, saved time and where the attachment didn't break or get in your way is the Chainsaws Rule firewood marking device. Check it out in action with there youtube video at ChainsawsRule.com It's great!
Copy and paste the link below into your browser to see how this simple device can save you time and space.

I never cut firewood without this handy tool..

http://www.youtube.com/watch?v=IPbtf3hTwls

This amazing little device called the Original Woodcutter's Helper allows you to mark and saw at the same time! If the link does not work, just do a search for the Woodcutter's Helper.

It can be found on eBay and at

http://www.ebay.com/itm/Woodcutters-Helper-chainsaw-Measuring-device-/140530405078
Or here: http://woodcuttershelper.blogspot.com/
aeray6 years ago
I usually just use a 100' tape and a crayon.
Vyger6 years ago
I use the span between my thumb and little finger. I know what that measurement is and have a ready made built in measure anytime I need it.

I have never seen the need to be that exact cutting wood and I go through a lot of it. Also after a while you actually develop an eye for the length you are going for and can usually hit it to withing an inch just by looking at it. The bigger challenge is cutting them lengthwise into parallel slabs.

https://www.instructables.com/id/Make-a-Hardwood-Floor-that-looks-3D-from-your-OWN-/step2/Cutting-slabs/
orksecurity6 years ago
Sounds like a wheel driving an eccentric cam or linkage which presses the can's nozzle, with some gearing so it takes N revolutions of the wheel to rotate the cam or linkage once. The hardest part would be designing it to press the nozzle only briefly, when it reaches the right point.

Personally, I'd just grab a measuring stick of the right length in one hand, the spray can in the other, and walk the former down the trunk applying the latter as appropriate. Cheap, fast, effective, nothing to malfunction, nothing to clean up except perhaps the ends of the measuring stick.

The commercial product MIGHT be a bit faster. But I suspect its complexity is more due to the fact that if they used a simple reference stick they'd have nothing to sell you.