Chainsaw Survey

[Freestylemxr]

I'm a senior in high school in central New Hampshire and am doing a project for an engineering class and was wondering if you guys could help me out with some survey questions. For the class we have to create and design a product that is unique and useful to us. I do logging on the weekend and love being outdoors and so decided to try and improve something on the chainsaw. We are trying to think of a product that can be integrated into the chainsaw that would help free it when it gets pinched, other than cutting it out with another saw. The survey link is http://www.zoomerang.com/survey.zgi?p=WEB22688TCP4QD

Thank you very much for your time and your results are appreciated

[Jeff]

Welcome to the Forestry Forum Freestylemxr. I'll see if I can drum up some extra help for your survey from the chainsaw board guys.

[beenthere]

Got r dun

[moosehunter]

me 2

[metalspinner]

me 3

[Mr Mom]

     Me 4


     Thanks Alot Mr Mom

[sharp edge]

Welcome a board
Bolt a John Deer 350 to the saw, that what I use. Its not bolted on. I thought 30 years ago that the chainsaw couldn't be improved, but was wrong.
SE

[Jeff]

Freestylemxr, be sure to come back and let us know how things are working out for you on this project.

[Woodcarver]

Survey completed. Good luck with your project, Freestylemxr.

[Norm]

Glad to help out.

[crtreedude]

Survey complete - the power of FF - you just got data from Costa Rica - honest, I didn't use Spanish!

[breederman]

Done.

[thurlow]

Aw-rite-den, ah-huh.............

[rebocardo]

Okay, I completed the survey and have a few things to ask.

If a tree leans back on a saw and you free it, what happens to the tree? It leaned back on the saw for a reason.

What do you use to hold open the kerf once the saw is removed and to move the tree back towards the notch so it falls over properly? Only thing I can think of is a wedge.

imo, Leaving the saw there to make sure the kerf does not close all the way while driving in wedges for safety is the way to go.

>  to try and improve something on the chainsaw.

I actually have a safety feature to add that I have not seen in the Federal Register, OSHA, SAE, etc. I have not been able to trudge entirely through the patent office stuff because you can't download everything at once to use off-line in keyword seaches.

Using quick searches I am pretty sure it has never been implemented or patented. The only reason I have not submitted it yet is the $5000 for the attorney. OEM cost would be $1 or less each unit.

Another one I can talk about on a public board might be easier to implement and I do not think it is unique enough for a patent.

Instead of using the sight marks on the saw case to drop a tree, which is a good guesstimate, have a laser built into the case to put a red dot on a reflective target placed where you want it to go. (easy part)

Then have another laser hit the target when the saw is placed in the correct 45 degree angle for the top of the notch. (hard part since the laser body has to be short)

The other thing I considered is the placing of a sensor near the tree trunk. Beeps/flashes when the hor. cut depth is reached, then once the 45 degree is lined up so it intersects, so the cut is not too deep or shallow, it beeps or flashes again. Sensor on the ground is placed at 25% of diameter.



I don't think it would be practical in real life, though it would be a good exercise for a short term project.

[Engineer]

Same here, finished.

[jokers]

Okay, I completed the survey and have a few things to ask.

If a tree leans back on a saw and you free it, what happens to the tree? It leaned back on the saw for a reason.

What do you use to hold open the kerf once the saw is removed and to move the tree back towards the notch so it falls over properly? Only thing I can think of is a wedge.

imo, Leaving the saw there to make sure the kerf does not close all the way while driving in wedges for safety is the way to go.

Good points rebocardo, when you`ve had a tree sit back on the bar is a poor time to have some mechanical device which is small and light enough to be conveniently and routinely carried fail. I`ll stick to wedges for now.

Another one I can talk about on a public board might be easier to implement and I do not think it is unique enough for a patent.

Instead of using the sight marks on the saw case to drop a tree, which is a good guesstimate, have a laser built into the case to put a red dot on a reflective target placed where you want it to go. (easy part)..........................................................................................................................
I don't think it would be practical in real life, though it would be a good exercise for a short term project.

Why not a cheap "visible beam" laser? Saves having to place a target which of course you must have in the first place, and if you have it you have to maintain it in inventory for when you need another, or you must retrieve it after the fall, assuming that it didn`t get obliterated.

It`s my opinion that an onboard device which provides feedback for level and plumb when felling might be only marginally beneficial since so many trees are not plumb, but maybe I`m the only one who feels this way. I just like the KISS principal when it comes to something that gets knocked around like a saw. Gunning or sighting sticks help tremendously in visualizing where a stem will fall and every tree usually has a bunch of them. ;)

[woody1]

Survey done....Hey Rebocardo, I had some neat inventions I worked on patenting, but too expensive here too. If someone starts a thread about inventions, I'll chime in.

[dancan]

done ... some canadian input for your survey

[Corley5]

Glad to help  8)

[blaze83]

finished!! and welcome to the forum

[thecfarm]

Please let us all know the results.I'm a strong believing in wedges.Doesn't do any good in your back pocket.I almost always put one in,even if it leans,in the wedge goes.I've had to take the motor off because I did not dare leave it.Came back next day and tree had fell the way I wanted it to.Live and learn.

[Ivey]

 Done, glad to help..

[Tim L]

I'm done, glad to see a local boy on the forum. (Boscawen NH myself )

[Sprucegum]

Got'er done and once again I am amazed and delighted by the internet and the things it brings to my table.

8)  8)  8)

[Furby]

Yup, I'm in.

[onionman]

it,s done

[LedlieLogs]

I'm in.

[Greenedive]

Zoomeranged!!! ;D

[semologger]

welcome. got er done

[Bill]

another two cents added . . .

[D Martin]

 survey says       :D        Tim L , I am originally from Boscawen also, my parents still do. How long ya been there?  I was in the class of 84 although I moved to the seacoast area before highschool. Good to see NH members here.

[TexasTimbers]

That wasn't so bad. The postal survey they keep sending me will never get filled out though. ;D

[Stephen Alford]

Fill yur boots ! ;D    Files lighter than cc's

[Dale Hatfield]

I have a box full of lasers.  Either shook to bad. Couldnt be seen. or Cost too much to have as a feature on a saw.

Dale