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openspaceman

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Everything posted by openspaceman

  1. No and though I know it is useful I generally managed, it was just turning into and out of racks where I had problems 1974 County 1164 with rotating seat and FMV290 grapple loader, I never felt it needed more power but then I never transported timber on the road (trailer has no brakes).
  2. My 9 tonne moheda with greedy pins can just carry 2 bays of 2.4m (8ft). About 5 tonnes of softwood and up to 7.5 tonnes of a heavy hardwood in thinnings. Without a reversing seat it would be a pain in thinnings if you want to move 50 or 60m3 in a normal working day. I wouldn't dream of having to get out and operate crane from the trailer, both from convenience and safety. When I was cutting and extracting and only doing 10 tonne a day not having a reversing seat was just about acceptable for a young man but a real pain in the neck now. Nowadays I would want to use a reverse drive tractor or small forwarder but definitely a 40kph box if returning to base each day. In the day I left machines on site, suffered a fair amount of vandalism as a result, so wouldn't feel keen to do it nowadays. Common knowledge (2 joystick with buttons) controls are de rigueur nowadays though I remain more adept with six levers.
  3. It's a shame I don't get down to Black Dog any more and I've been blown out of felling some ash for my brother's widow in Cheriton Fitzpaine in favour of a local other wise I'd bring it down for you to try first.
  4. I've wondered about stellite tipping them but again they would need grinding back to the cylinder. It can be done with stellite cored wire in a mig welder.
  5. Yes a good case for considering reducing to monolith if the owls are likely to use it again
  6. I didn't seem able to find much detail, it seemed to be a well intentioned vertically integrated system making use of all the components of the waste, the volatile solids element ( that bit which heats up heaps of mulched greenery) producing methane and then all the residue being dried and compressed into pellets/pucks/briquettes for combustion. I suspect, like our charcoal, heat and power project, the capital cost escalates to make commercialisation non viable. We have seen in field devices for making straw pucks fail after initial field trials because even though the straw is dry the forces are too great for a mobile machine. Not to mention trying to harvest on a steep rocky hillside. All that energy creamed off in the biogas process would still be available as heat if the whole biomass were burned and less problems dewatering and drying the residue. They seem to be hooked on the holy grail of generating electricity from biomass (as we were indirectly). I'm all for utilising waste heat from such a process for buildings but with a simpler pyrolysis and co producing the char as a saleable product for soil amelioration.
  7. Probably when turkey oak were first introduced within 50 miles of english oak
  8. What more is there to say except me too
  9. IMO the fungus was already in the sapwood before you cut the boards and the white you see is mycelium out foraging for some fresh wood to devour. Only solution is the sticker the boards and dry them fast under cover.
  10. When it comes down post us a picture of the cut stump please
  11. The chap I help is getting a lot more work and it's domestic arb work but that's because we're a service industry and in my area work for the extremely wealthy. Many businesses have done well during the crisis, Tesco and Amazon profits have soared so the senior management have also done better. It's the people near the bottom that live hand to mouth that are suffering.
  12. Yes I guess you would call it maple, Scotlands national tree, it's a sycamore to sassenachs. IMO if it fell on a brick built house it probably wouldn't penetrate more than the roof but the single storey bit.... I still pass a house that, with the help of a crane, I lifted a similar 3m3 stem and associated crown sycamore 33 years ago, you can just make out the outline of the now faded new tiles in the line of fall. I would like to see the junction of those two stems.
  13. Which suggests there is a flow divider or priority valve in the circuit. A very real concern, it normally bursts a hose before damaging the pump. The diverter would have to make the new circuit before breaking the old one, else a pressure relied across the pump.
  14. I think @Woodworks has a similar machine, perhaps he knows the circuit. In the absence of the circuit diagram all I can think is to have a solenoid controlled diverter that was only enabled when the processor operator allowed. This would stop the conveyor.
  15. Does the conveyor run constantly or slow at all when the saw or splitter are in use? What you want to do is catered for by having a spool valve with a high pressure carry over to a downstream spool but it's hard to see how to make that work without a new set of spool valves.
  16. That is nice, I'd be keen to see a picture taken in a year's time.
  17. Way to go, saves a lot of faffing about and what we used to do with a Cat 951 but Health and Safety wasn't such an issue then. I suppose the biggest risk is being hit by the machine
  18. Yes we used a loading shovel with a tip-on-the-lip grain bucket, 17 lifts to 24 tonne, the JCB 535 also did it easily but 54 lifts to the load with standard bucket.
  19. Yes and yes. I look on it as similarly to the way gas turbines are used to generate most of our electricity, at first they were only used for peak lopping as they sent their exhaust away at over 800C, then someone realised that steam plants operate at no more than 700C steam so they used the exhaust to raise steam and the overall thermal efficiency went up above 50%, in theory the 50C water from the condenser could supply some heating but it is too low a temperature to distribute. Same with the kiln, it cannot be worth condensing the vapour from the kiln exhaust and then feeding it back because the mass flow of the air change is not big enough to transfer the low grade heat from the condensate but if the condensate can run above, say, 30C it could run underfloor heating close by. As you rightly point out it is the extra capital cost of the equipment all the while heat is cheap that militates against it.
  20. Yes I just take my old ones to a local stockist(Steerforth or PPK in Aldershot for me) who measures everything up and orders a kit for me, picture is just showing the piston seals, you should get the gland seal as well. About 25 quid per cylinder for the 4 slew rams I did in July 19.
  21. Yes in general an oven does not have air changes (and those mine does bleed is to keep the fan motor and bearing cool) any unnecessary air mass flow is wasted heat. Yes but that warm air actually cools as it absorbs the liquid water and turns it into a vapour and takes it away, so the heat in the air needs constantly to be replenished as it supplies heat to the wood. I think you mean it need not be and most are not but the hotter you supply the air up to the point it starts changing the wood, the faster it will dry. The decision on temperature is mostly to be to do with cost and heat loss, the heat loss at the higher temperature has to be balanced with the lower heat loss but over a longer time with the low temperature. The higher temperature driers offer the opportunity to reuse some of the heat in the exhausted gases or vapours.
  22. The bit in this that fascinates me is; whilst the face covering is supposed to stop aerosols containing virus getting into other peoples breathing space and social distancing coupled with sanitising hands to cut the risk of contagion from fomites or infecting from the air then it should apply to all diseases transmitted this way. Are we seeing a reduction in colds, flu, measles and especially STIs? The other thing is has the medical science advanced sufficiently that an overweight 74 year old will have little risk of dying or is it that poor people just don't get good treatment. I say this because Peru seemed to have a severe lockdown but a high death rate.
  23. I know the small tip on a carving bar is to reduce kickback but is it solid because a sprocket tip cannot be made this small?

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