Looks like no more Makita Petrol Saws

[Khriss]

....Plus they just not ' manly enuff for me,  sorry.  K

[Paddy1000111]

2 minutes ago, Rough Hewn said:

Logosol make a 5 and 8 kw electric corded saw.
Absolutely ridiculous cutting speeds, insanely fast for a saw.

But if you want to think outside the box...
How about plasma?
Anyone seen the guy who’s made a fully working plasma lightsaber on YouTube?
Imagine a hand held portable plasma cutter lightsaber?
No kick back,
Could shorten or lengthen the flow of plasma to imitate a bar?

Imagine the health and safety on that! Go to fell a tree and circumcise a guy on the other hill ?

[Rough Hewn]

[Echo]

 

[Paddy1000111]

Whilst the tech is cool we won't see anything to replace the chainsaw unless some new tech comes in. All the plasmas or lasers etc involve heat which when we live in a world where a saw can't emit a spark we won't see any of that in this industry. Closest is water jet but we would have to carry tankers full of water ?

[Echo]

1 hour ago, Paddy1000111 said:

Whilst the tech is cool we won't see anything to replace the chainsaw unless some new tech comes in. All the plasmas or lasers etc involve heat which when we live in a world where a saw can't emit a spark we won't see any of that in this industry. Closest is water jet but we would have to carry tankers full of water ?

I can see your working on the problem, be sure to give credit to all who inspired you

when you come up with the next gen tree saw, woodpecker and beaver are my tm 's,

get your own.

[Echo]

How about an acid we paint around the tree in a ring, activate it with a dot of

hell on earth, then run, 60 seconds later down comes the tree.

[peatff]

1 hour ago, Paddy1000111 said:

All the plasmas or lasers etc involve heat

 

Plasmas only work on conductive material (metal) and need an earth connection.

[doobin]

On 05/11/2020 at 18:45, Dan Maynard said:

The problem is your 20Ah 22.2v battery has about 1.6MJ on those ratings. The 881 power of 6.4kW would need to run 290 amps at 22.2v and the battery would last about 250 seconds.

There is such a lot of energy in a tank of petrol, batteries are 10 times off the mark as against energy required by the bigger saws.

Vehicle technology has adapted by allocating a lot more of the vehicle mass to energy storage, not really going to work on a portable tool.

Consumer tech has adapted by electronics getting hundreds of times more efficient, phone batteries don't have any more energy in today than they did 10 years ago.

I remain to be convinced that big saws will go battery. The chain is essentially the same as it was 40 years ago, only advance is narrower gauge on smaller bars.

Thanks for taking the time to put

sone figures on it. This is what so many don’t understand. It’s also why the idea of battery lorries etc is laughable. 
 

we could, however, have a mains powered lorry! Linked back to the mains by the wheels. That would work. We could link many of them together and call it a goods train! 

[doobin]

8 hours ago, Paddy1000111 said:

Whilst the tech is cool we won't see anything to replace the chainsaw unless some new tech comes in. All the plasmas or lasers etc involve heat which when we live in a world where a saw can't emit a spark we won't see any of that in this industry. Closest is water jet but we would have to carry tankers full of water ?

Both of those technologies require an huge amount more energy than the biggest petrol chainsaw. 
 

There really isn’t a much more efficient way to remove green wood in a controlled manner than a chainsaw chain. And the battery technology really isn’t good enough to run them in a forest scenario. Hence my original assertion that petrol saws for forestry will not be going anywhere soon. 
 

For firewood in the yard though, a mains saw is perfect. However- they have topped out at a kw lower than required to match even something like a 362 because most domestic properties and a good amount of commercial ones do not have three phase.  Then you get into the weight- three phase saws get very heavy. I reckon a petrol engine has them beat on this front too. So they are limited really to machine mounted cross cut saws in sawmills.