Jump to content

Log in or register to remove this advert

New sthil reviews


Jacksontrees
 Share

Recommended Posts

Log in or register to remove this advert

Well it looks like you and your vast experiance have really shown me up then.
 
Except you still come across as someone who has yet to grasp the basics.
 
Which you have not.

I'm not trying to show you up mike,
Only interested in open shared debate about saws.
Everyone has their own subjective opinions on saws.
I.e.: husky/stihl debate
If I'm missing something basic about saws, I'm all ears.
My point is that there are many variables in wood cutting.
Just because you have a bigger engine and smaller bar it doesn't mean it will always cut faster.
That's all.
[emoji3][emoji106]
  • Like 1
Link to comment
Share on other sites


I'm not trying to show you up mike,
Only interested in open shared debate about saws.
Everyone has their own subjective opinions on saws.
I.e.: husky/stihl debate
If I'm missing something basic about saws, I'm all ears.
My point is that there are many variables in wood cutting.
Just because you have a bigger engine and smaller bar it doesn't mean it will always cut faster.
That's all.
[emoji3][emoji106]


Hang on Fellas,
I’m really no expert and equations like this one made my eyes bleed at school, but in a nutshell. Is it down to a combination of the 3?
Engine power output x sprocket size x bar/chain length
A bit like that balancing birds conundrum thing in the back of the in-laws newspaper?
Then you have to add contributing factors sharpness of chain, operator fitness/skill, balance of saw/bar combo?
  • Like 1
Link to comment
Share on other sites

Hey good folks, we're all on the same side here.

It's like a brexit debate or sumfin here sometimes :(

Anywho, it's a great deal of factors go in to performance. An 880 has a 43mm stroke and loads of displacement. It is not designed to sned or run terribly fast. And, quite frankly, you probably wouldn't want a 120cc saw running like a raped ape. What you want it to do is pull a 40-48 inch bar buried in oak rather well. Saws are like any other tool. Use the correct tool for the correct job and life is easier.

 

  • Like 5
Link to comment
Share on other sites



Hang on Fellas,
I’m really no expert and equations like this one made my eyes bleed at school, but in a nutshell. Is it down to a combination of the 3?
Engine power output x sprocket size x bar/chain length
A bit like that balancing birds conundrum thing in the back of the in-laws newspaper?
Then you have to add contributing factors sharpness of chain, operator fitness/skill, balance of saw/bar combo?

Different types of power output,
Rpm and torque:

Low throw, wider but thinner piston head for decreasing the inertia.
So higher rpm is achieveable, but torque is sacrificed.

Deep throw, wide but thicker piston head for longer power stroke,
Lower rpm more torque.


Sprockets are gearing, if you don't have the torque it'll cut slower than a smaller sprocket, as well as bogging much easier.

Bar and chain gauge pitch and type,
Top plate angle, hook, gully and side tooth as well as depth gauges set at correct depths correlating to the size, density and MC of the wood you are cutting.

As previous members have said,
It's a balancing act between all these factors, and many others.

And that's just the basics of cross cutting.
[emoji12][emoji106][emoji106][emoji106]


  • Like 2
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share


  •  

  • Featured Adverts

About

Arbtalk.co.uk is a hub for the arboriculture industry in the UK.  
If you're just starting out and you need business, equipment, tech or training support you're in the right place.  If you've done it, made it, got a van load of oily t-shirts and have decided to give something back by sharing your knowledge or wisdom,  then you're welcome too.
If you would like to contribute to making this industry more effective and safe then welcome.
Just like a living tree, it'll always be a work in progress.
Please have a look around, sign up, share and contribute the best you have.

See you inside.

The Arbtalk Team

Follow us

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.