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openspaceman

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Everything posted by openspaceman

  1. Could you biscuit joint them, then it could all be done with a router?
  2. So the ranger did not get the dual purpose category?
  3. If it blew the fuse my first move would be to unbolt the hydraulic pump from the electric motor and see if the electric motor would spin, without disconnecting any hydraulic pipes if possible.
  4. Too right, one of our chaps thought he was climbing an ivy covered ash, cutting the ivy as he went up, unfortunately he had notched the top of the limb he chose as an anchor and we all know how stresses act on a notch... With the poisoning I wasn't considering climbing but felling.
  5. Perceived wisdom suggests drilling and using a systemic before felling gets more translocation to the roots. I have never been allowed to try it for fear of the dying tree attracting unwanted attention.
  6. With those blurry stripes I would have said it was a comon may bug but a bit late in the season.
  7. It's not, it is specific to motors with clutch shoes held on by a bastard (left hand) thread. Stihl clutches were held on by E clips so not such a problem. Once a saw has been run and stalled in the cut a bit the chain tightens the clutch onto the crank shaft, which is why it can need a sharp tap to undo it. If it has just been tightened on and not used when the saw slows under overrun and there is no chain drag the inertia of the clutch shoes makes it want to continue spinning but the motor is much slower so it spins the clutch off.
  8. Yes for big motors; when the motor starts from stationary each voltage cycle there is a sudden rush of current, and this creates a massive torque, once it is moving the squirrel cage armature starts generating a back electro motive force which opposes the supply voltage and reduces the current. With star delta it's effectively wired as a 240V motor as it comes up to speed as otherwise the inrush current on each cycle would likely overload the supply, once it's rotating sufficiently fast for the back emf to reduce the current even at the higher voltage it is switched to act as a 440V motor. I agree that the rule of thumb is you need to supply 3 times the current to start up a motor because of this inrush. There are other ways around this by controlling the current or the frequency The Power=Volts x Amps is true but because a motor is an inductive load the current and voltage are out of phase so even when it is running at rated speed it will be drawing more amps than the power suggests, which is why the motor will be rated at 15kW but the generator supplying it will need to supply the 15kW when the voltage is out of phase with the voltage, so it will need more than 15kVA to run at rated power. Hence the windings of the generator will need to be able to withstand the supply voltage and the higher current, which is why a generator is rated in kVoltsAmps rather then kWatt.
  9. Yeah regex would only require one asterisk or the correct number of question marks ?
  10. I hope you realise I was being sarcastic.
  11. Kevin and I often agree on what's wrong, we just don't agree on what to do about it.
  12. I know nothing about american internal politics but attribute much of the problems in the world today as a result of american foreign policy. The unruly behaviour in america will fail becacuse of my last point, it is based on an uprising of the poor, just like Wat Tyler it will be quelled by executive decision to remove leaders because it has no basis in the corridors of power.¿It does indicate a groundswell of unrest in the untermensch though.
  13. I wasn't and initially wrote tumbril, then had second thoughts. Anyway the French revolution shows us a few things Those who don't learn from history will repeat the mistakes (forgot who I have paraphrased) Let the inequality swing too far and the reaction swings too far the other way The "people" do not benefit from the coup, they are just goaded into revolting by the erstwhile ruling class who get to depose the current one, i.e. there is not much difference between the current ruling class and the incomers; animal farm anyone
  14. Probably isn't but do make your mind up, we either top all the people without callused hands (aka not those with "the perpetual faint whiff of penetrating oil and diesel") or try and make something of the system we have got
  15. I wish Trouble is you miss the fundamental point about how come some people come to be dominant over others.
  16. The reason wood wasn't milled in the summer was that the outer layers of the cut surfaces dried too fast for the inner to catch up, causing slitting and surface cracks. I'm not sure if that is an issue with softwood unless it is for high class joinery.
  17. The barks being knocked off by woodpeckers after the grubs that are in the breeding galleries under the bark. The grubs only got laid there because there was something fundamentally wrong with the tree's health. If the tree were healthy it would have drowned the invaders in resin.
  18. I should have said "management plan" rather than grant scheme as I don't know what grants are available, my last involvement was compliance inspections for grants over 20 years ago. Create a woodland management plan - GOV.UK WWW.GOV.UK Find out what's involved in creating a plan, giving you a structured way to organise the management of woodland.
  19. I have my 1969 Hiat D steel screwgate, which I still use on a tow rope ?.
  20. amongst the other things: even a single tower tends to know which quadrant you are in and because the tower controls the strength of its communication with your cellphone it needs to know the approximate distance too. It then allocates the phone a timeslot out of 64 according to this distance which narrows it down further.
  21. Hi lift jacks can be lethal with land rovers, not only the risk of toppling and a smack under the chin if you let go during descent but the way the handbrake works on the transmission. You must have it in gear with the handbrake on if you lift a rear wheel on a series. It's a risk I took and my current model is a genuine hilift 48. We found the pattern ones rounded off the pins so they would not hold a log up on the Lucas mill. For occasional vehicle use this would not show up but when in use daily...

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