Thanks: 0
Likes: 0
Needs Pictures: 0
Picture(s) thanks: 0
Results 1 to 15 of 83
Thread: one for the falling experts.
-
2nd November 2010, 09:27 PM #1
one for the falling experts.
have a look at these 2 stumps. that were cut today.
stump #1 - broadleaved red iron bark - approx 600 diameter.
Attachment 151810
stump #2 - black spotty, - approx 700 diameter- had to be felled across the lean to keep the head out of a buffer zone.
Attachment 151811
witch one was cut correctly, corectly by what trainers teach and what stump auditors would look at if you were working at forestry.
if you were cutting in forestry and cut one of these stumps you would be kicked out quick smart
www.carlweiss.com.au
Mobile Sawmilling & Logging Service
8" & 10" Lucas Mills, bobcat, 4wd tractor, 12 ton dozer, stihl saws.
-
2nd November 2010 09:27 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Posts
- Many
-
2nd November 2010, 09:36 PM #2
Hey Wisey,
I don't know about forestry, but my trainer would have kicked my bum for # 2, if it didn't land where he said it should. But #1 is a bit close to centre for my liking
HazzaBLast edited by HazzaB; 2nd November 2010 at 09:38 PM. Reason: add a bit more info.
It's Hard to Kick Goals, When the Ba^$%##ds Keep moving the Goal Posts.
Check out my Website www.harrybutlerdesigns.com.au
-
2nd November 2010, 10:04 PM #3
There's no or very little holding wood left on either of them that i can see. The scarf on the first one is a bit savage though.
Mapleman
-
2nd November 2010, 10:09 PM #4SENIOR MEMBER
- Join Date
- Sep 2008
- Location
- Coffs Harbour
- Posts
- 575
Technically none of those stumps are correct, not far from being right though, I don't know about being kicked out the bush for them, but I suppose if you kept on leaving stumps like that, it might come to it.
pic #1 the scarf cut is too deep, not dangerous but what will happen is you will get splinters of timber pulling out of the log & it will leave voids which can fill up with dirt etc & make the sawmiller not very happy. cant tell if the backcut is high, low or level.
pic #2 the scarf cut looks around the 1/3 mark which is ok, the backcut is almost overcut to the scarf cut on the top side of the stump which is not leaving an even amount of hinge wood which is not a safe practice, I cant see any marks left from a wedge being used to get it to fall across a lean. Cant tell if the backcut is low, high or level. there is maybe more to see but its a bad angle pic
regards inter
-
2nd November 2010, 10:56 PM #5
the tree in teh second pic had a heavy lean to the top of the pic but had to be felled straight along the ridge way from 2 watter courses.
the first tree was standing strength.
the forestry inspectors are really cracking down lately as there was a bloke killed by a stag tree and a heap of near misses reported recently, they have been closing down whole blocks for little things, its costing a lot of blokes a lot of money.
www.carlweiss.com.au
Mobile Sawmilling & Logging Service
8" & 10" Lucas Mills, bobcat, 4wd tractor, 12 ton dozer, stihl saws.
-
2nd November 2010, 11:28 PM #6SENIOR MEMBER
- Join Date
- Sep 2008
- Location
- Coffs Harbour
- Posts
- 575
-
3rd November 2010, 01:54 PM #7Member
- Join Date
- Sep 2010
- Location
- south burnett
- Posts
- 83
yep they are cracking down more every day, stupid part about this is i have seen tree loppers leave a lot worse stumps behind than that and who audits them to the point the forestry audits us allthough that said neither stump would pass but i wouldn't call them absolutly unsafe, but in a work environment who has the time pull out the calculator and calipers for every tree they put down its bad enough they still length and girth HWD logs (why cant they weigh them just like the pine) let alone mathmaticly work out every cut for every stump just so it fits into their rules. that being said there has to be some degree of accuracy otherwise there would be more people being killed than there already has.
-
3rd November 2010, 06:58 PM #8
stump #1,
the belly cut - is way to deep it is about half when it sould be between 1/4 and 1/3 rd, in red iron bark this could cause a bad split up,
holding wood - isn't to bad but could have been kept thicker at the top edge. it should be about 1/10th of tree diameter.
stump #2,
belly cut - is within what it should be,
holding wood - is good 1/10 in the center, when pulling a tree round whatever thickness you add to the holding side should be taken from the close side, this keeps the 1/10th rule in the center.
www.carlweiss.com.au
Mobile Sawmilling & Logging Service
8" & 10" Lucas Mills, bobcat, 4wd tractor, 12 ton dozer, stihl saws.
-
3rd November 2010, 07:06 PM #9
teh weight of hardwood varies to much to weight them. it dosent take long to girth a lot of cubes.
a faller with an advanced ticket doing directional falling is should have a 0% margin for error, althow some mobs allow up to a ridiculous 10%, on a 40m tall tree felled with a 10% margin of error allows teh head to land up to 13m either side of where its supposed to. im my opinion this is just ridiculous, as often its a matter of 2m to miss other trees. and we are not allowed more than 20% damage to teh environment.
as for tree loppers dont get me started, im amazed more houses arent destroyed .
www.carlweiss.com.au
Mobile Sawmilling & Logging Service
8" & 10" Lucas Mills, bobcat, 4wd tractor, 12 ton dozer, stihl saws.
-
3rd November 2010, 07:07 PM #10
more pics to come.
www.carlweiss.com.au
Mobile Sawmilling & Logging Service
8" & 10" Lucas Mills, bobcat, 4wd tractor, 12 ton dozer, stihl saws.
-
3rd November 2010, 11:20 PM #11SENIOR MEMBER
- Join Date
- Sep 2008
- Location
- Coffs Harbour
- Posts
- 575
Its good to see your starting to learn about what stumps should look like, bit of a change from 4 months ago. They are evidence of the fallers skill long after your gone.
As far as the strenght red ironbark slabbing up it would be a one in poopteenth odds of happening & the depth of that scarf cut would have nothing to do with it happening.
For the spotted gum there is no evidence of a wedge being used to fall it across the lean, so I'm still wondering about that one & how it happened on its own.
regards inter
-
4th November 2010, 03:37 PM #12Member
- Join Date
- Sep 2010
- Location
- south burnett
- Posts
- 83
-
4th November 2010, 06:38 PM #13
i knew exactly what stumps should look like 4 moths ago i just dont agree with people getting stuck into someone trying to help anotehr bloke out.
once you get to close to the center you get into the young wood (thts teh wood that grows when a tree is small) witch is not as strong as the outerwood, nd splits/breaks a lot easyer, teh lines that a log splits along as it drys are always there even when the tree is growing, the tree can splitup along these lines. broad leaved red ironbark has a really free running grain making it one of the worst for splitups.
teh spotty i had to lay into with a 9 lb hammer, to push it over. dont ask me why there aint no marks there but it definitely had to be wedged. it may have been becuase i was trying one of them yellow plastic wedges instead of my alloy wedges. btw there useless.
here is the log.
Attachment 152026
www.carlweiss.com.au
Mobile Sawmilling & Logging Service
8" & 10" Lucas Mills, bobcat, 4wd tractor, 12 ton dozer, stihl saws.
-
4th November 2010, 07:24 PM #14Deceased
- Join Date
- Aug 2008
- Location
- Bundaberg Queensland.
- Age
- 76
- Posts
- 372
a bit of fun ''driving a peg''.
Carl and other interested woodies, here is something my dad told me they use to do for a challenge in the crosscut and early buzzsaw days ,they would put a peg in the ground where they reckoned the trunk of the tree should fall ,he use to call it driving a peg,and if you were good at falling trees you could drive the peg into the ground with the tree trunk, he use to cut sleepers in the 50's with a mobilco buzzsaw with the swing head .i managed to drive the peg a few times when i tried .
-
4th November 2010, 07:37 PM #15
Log falling 101
Hi Carl,
full points for introducing some interesting topics but I think this one is a bit difficult. As you know there are so many factors that must be considered when falling a tree it can hardly be explained here. There is also the worry that someone might try to put these instructions into practice .
I did my refresher test the other day. They even take your photo these days. When I started falling all you had to do was buy a saw. Its good to see more stringent controls.
cheers
Steve
Similar Threads
-
A falling out
By Allan at Wallan in forum WOODIES JOKESReplies: 1Last Post: 10th November 2008, 09:30 PM -
It's like falling off a bike...
By haemish762 in forum WOODTURNING - GENERALReplies: 3Last Post: 15th November 2005, 02:12 AM -
Falling a Big Fir
By Bob Smalser in forum TIMBERReplies: 3Last Post: 12th April 2004, 11:16 AM