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  3. It's the last day of my easter "holiday" and I need to be up early tomorrow so I'll re-read your post tomorrow when my brain is working properly. All I can remember right now is that the yield models show as little as 3 years between thinnings for sitka so you're not totally out with going in so soon.
  4. Haironyourchest

    Old Time Log Drive

    Left me without words. Respect to these guys
  5. I have that experience with the dinky forwarder. It has a bed extension that I can put in, but I never do as it completely buggers the balance of the machine, and as you say, you can feel the stress on the centre joint. It's best suited to 3m lengths, but 3.7s are OK
  6. I'd like to get your opinions on a thinning approach I'd like to undertake on our next job. We've about 10 acres of spruce to thin. It's had racks in 4 years ago, and the trees adjacent to the racks are noticeably much larger than the internal trees. 1 in 7 so far. I'd suggested some further thinning as not much was taken out of the matrix at all. In in the interests of keeping it fairly simple, and in order to maximise the growth of the remaining crop, I was proposing a sort of hit and miss line thin between the racks. So, presently, there are 6 lines between each rack. Starting with line 3, you remove one tree. You then take the next tree from line 4, and then back to line 3, then back to 4 and so on. My theory is that having seen the hugely increased growth in the lines adjacent to the rack, conventional rack thinning results in improved growth and form in only two lines (those adjacent to the rack) whereas this hit and miss method results in additional space for all trees in all racks between the main racks (with extra space in lines 2, 3, 4 and 5, with additional space already present in lines 1 and 6 from the previous rack thinning). My thoughts regarding the advantages are as follows: It's very simple for the cutters to grasp. No need for them to selectively thin, as they'll have a rigid structure to work to It creates a slightly more organic feel to the thinning than putting in another rack, as the hit and miss approach means you won't see a straight rack It creates extra space and light for every tree between the existing racks It suits my winch processor setup as it's super easy for me to do but you be a complete PITA for a harvester. My justification for going in relatively soon after the last thinning is that it's a sitka stand of not especially good form or YC. The ground is generally too dry and the trees at a little over 20 years old are only averaging 40-45ft, and I reckon are around 0.17-0.2 cube per tree. In performing a 15% thin, I think we can increase the growth rate of what remains, and we're offering £6/t for it standing, which I don't think is too bad for a low impact approach on a sensitive site. My hope is that if this method proves successful on this site, it could be used on other first thinnings. I'd then propose putting racks in at 1 in 14 intervals, with hit and miss thinning inbetween. Fewer racks is something I can get away with wiht the winch processor and it leaves a less mechanised finish for the landowner. If you disagree with the approach, please say. I have a lot of time in machines to think about these things and I'm happy to be told when something is a shit idea!
  7. I did a stint on one last year , for short haul work they are handy machines. Some were lengthened at the front and were ok,..its those that were lengthened behind the bogies that caused most problems as it puts too much leverage on centre joints.Its always worth bouncing the crane around on them to check for centre joint play ,bearings aren't cheap and if the casting is damaged you are looking at machining /line boring, which soon runs away with a few grand. Sounds like yours is standard length.
  8. Forest2Furniture

    Today's milling

    Finished stacking this years milled Oaks planks today. Got 3 days on-site milling to day then I can start on the Sweet Chestnut next week
  9. Forest2Furniture

    Saw milling directory

    I think county you're in, area covered, milling capacity. That way no one has to give out their exact location or list equipment, not that I've got much left now having been visited 3 times!
  10. Really appreciate the pointers. Many thanks for that. I don't think (though I may be wrong) that it's been used for double bays, as the capacities quoted to me by the owner were 12t of 4.9s, 10t of 3.7s and 8t of 3.1s, implying to me that that is all it's been used for. It's first job is a majority cedar thinning, with some douglas and spruce. Mostly just collecting from a track from winched material, with some tricky racks too.
  11. Forest2Furniture

    Toyota Rav 4?

    Honda Crv, great little motor. Use mine for towing the mill and for pulling trailer loaded with trees out of the forest. Older shape rather then new as new is not so rugged, having said that I've got one of each and only get to drive the new one when we go on holiday as wife seems to hide the keys!
  12. Pete W

    Show us ya birds !

    Often see (or have a heart attack as) a Woodcock erupts from in just front in front of me as I'm walking through the woods in winter. This one was feeding in the meadow this morning.
  13. eggsarascal

    Non paying customer

    Similar, my invoices for domestic work state, Payment on completion of works.
  14. Haironyourchest

    Japanese Knotweed

    Tried it - delicious! Better than rhubarb. The Japs make tea from it as well, supposably has health properties.
  15. Forest2Furniture

    Non paying customer

    All my invoices state; Payment due in full on presentation of invoice. I did have one who said they'd pay at the end of the month, to which I replied that's ok you can have your stuff at the end of the month and promptly put it back on the van, I've never seen a cheque book appear so quickly!
  16. It comes back to cost every time doesn't it? Unless a contractor is in small thinnings full time then its a case of making the best of what you have. Harvesters that will cut big will also cut small, but it doesn't work as well the other way round. Cutting two row racks in a lot of stands is the only option to facilitate machinery, but even a few degrees of side slope can bollocks things, forwarders tend to creep and standing trees get marked. 50-80 cu/m days are common in poor quality first thinnings and with a harvester/forwarder setup needing to earn £1500-1800 a day minimum its not that attractive, taking downtime into consideration. The flip side of it is that timber stands don't have to achieve the quality of past generations,...most computerised mills are looking for 45cm max butt diameter which is easily achievable as a final crop. In a perfect world perhaps things would be done differently, but since mechanised harvesting its been a case of go with it or get out, there could be ten + contractors look at harvesting sites and someone will always do it, normally highest bidder buys the wood, lowest bidder gets the harvesting. although marketing companies are specifying maximum size machinery in some areas it tends to get overlooked when theres a few quid at stake. You only need to work crops that haven't been thinned to see the losses caused by suppression, this tends to get overlooked , yet damage in a thinned crop is the first thing that gets picked up on,..rock and a hard place.
  17. difflock

    Traditional timber frame

    So many variables, and most tables will include relatively generous/stupidly generous Factors of Safety.(and I think structural timbers are mostly sized to prevent deflection or undue "springiness") Anyway, are we talking an overhead span (presumably otherwise midspan supports at ground level) Being a garden room, presumably single story? So what mid span loads will the overhead timbers be supporting, or can they be artistically fabricated as part of a truss, ergo much stiffer? Fabricate a trial beam or truss at ground level and test it for stiffness? I cannot imagine sudden failure i.e. there will a LOT of deflection to give reasonable warning prior to failure.
  18. Couple of points , 840 nice machine which I was very surprised at ( I'm used to 1510-1910 and 865) it carries well and with the right man at the helm can travel bad ground very well ! Conor, I'm guessing that wood was a private wood not state land ? I know if "we" had worked a wood like that for the three private companys we cut for we would have been looking for other work after that !!
  19. se7enthdevil

    Saw milling directory

    be great to know who is local as i've needed some recently and may do again in the future but no one seems to be near me.
  20. Dendrophile

    Tropical Canopy Access Odyssey

    Yes it was unpaid. Well I did get a small stipend at Osa. Food and lodgings were provided at both projects so it hardly cost me anything and will most likely lead to more opportunities. I guess you need to bite the bullet and get a name for yourself in conservation biology or conservation in general. This field of work needs more skilled people than graduates but lucrative its not.
  21. PeteB

    Toyota Rav 4?

    Maybe PITA running gear?
  22. Rushes

    dangerous yet? Question from the Czech Republic

    I Would check that your 3rd party insurance is up to date, that all your neighbours are aware of how dangerous this is, find yourself a translator and get this tree down. If you do this you will have protected yourself, protected your neighbours and made a few more friends. It will help you integrate with where you live showing that you care
  23. Mistynick

    Imidacloprid tree application

    To clarify, the product I have is less than 1%. It is 0.72%, not 72%.
  24. Trouble is....... What is classed as a thinning machine? In Conor's example an Ergo isn't exactly a small machine, certainly not in first thinnings. Put almost any off the shelf machine from any of the big manuracturers into first thinnings and it'll look HUGE. What the manufacturers class as thinnings machines are, in my opinion, really more suited to later thinnings. In order to do first thinnings properly you're looking as specialist small scale machinery (such as yours J) or going back to hand cutting - or a combination of both. Problem then is a lack of funds to cover the costs. Problem if you put machines that are too big in is you end up skinning trees and damaging the ground , you end up with butt rot and potentially unstable crops. The result can be seen all over the place either non-thin regime or a delayed thin, more instability followed by premature clearfell. There's still quite a bit of figuring out to be done in the thinning conundrum, small scale equipment seems to be getting better, but I thing there's still a bit to do to persuade people (owners / investors) that it's worthwhile doing properly. I should add that I'm talking really about upland spruce (sitka) forests, those who are luckier to be lower down with better soils and more diverse crops may be able to make thinnings work easier.
  25. nepia

    Tropical Canopy Access Odyssey

    Also looking forward to more; I'll be there for Christmas!
  26. Elmsdown Forestry

    Low impact forestry services in Devon and the South West

    Evening J Have a 840tx myself, very capable machine and with the right operator very good over the ground. Just watch out for the pins/bolsters in the racks not Komatsu’s finest quality metal and bend really easily. Check the welds on the bunk extension and if it’s been extended to fit more than 2 bays of 2.7-2.8 stay away as will cause centre joint issues. Beware in stuff like Corsican 2 bays of 2.7 chip can easily be upto 15 ton. Good luck with it.
  27. billpierce

    Tropical Canopy Access Odyssey

    Looking forward to the next installment. I take it it was a voluntary role there?
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