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To be fair, my V8,5ltr Ford Focus is cheap with flux, but Disco 4 was dear! Don't bother with a tipper, a worthless cost of money at that size! NFU is a good shout.
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No. Both called Bob and both drive Delicas but I suspect aspenbob is less good in bed. Do ask if you run into maintenance problems. My Bob has had his for ages and has done head gaskets on the side of French motorways etc.
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I reckon the 2kg would be enough to tension the wire on a capstan. With an 8mm diameter semicircular thread machined in the capstan and a fairlead to keep the wire in the groove. Drop the tail to the ground and then launch off on the active part of the rope. Once on the deck unclip and the next person clips on.
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I dont know what bullshittery is required under EU rules for testing, rating and bringing a rigging product to market, but I see it as a fixed cost whether its a solid basic bollard or a fancy winch combo thing, and there are much, far cheaper bollards of higher capacity. The lowering functionality is a plain bollard with a ratchet strap to the tree. The winching is a rotating bollard with a ratchet wheel and bearing. Its a very simple steel fabricated device. Steel is not great for your rope. Could be improved by welding on a fairlead for the rope to exit when its in use as a winch, so that theres no need to tie it off and reset it every few feet. If the rotating drum had a gear reduction, hidden in the base, you could have a massive mechanical advantage for a drill powered winch. Neither suggestion would add much to the price.
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Is that Bob of this parish, AspenArb? I've no idea, i think mines probably the short wheelbase or whatever is standard. Many parallels with the Shogun in terms of running gear and suspension. A few things that will need someone familiar with jap imports.
- Today
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Fire escape I reckon. Why the 8 wraps and 2kgs though OSM?
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The downrigger appears to be a moving cam that is applied by the load, but its still rope based friction to slow the load. Predictable friction yes, it needs to be adjustable for heavier and lighter loads. Or the adjustment could be built in and automatic, theres a few ways to do that but I'd suggest its a step too far. Adjustable, like adding a extra wrap on the bollard, is what arbs are used to.
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I was talking with my mate Bob in Bournemouth yesterday about his Delica. His is a long wheelbase, apparently rare. Is yours short and same as the Pajero/Shogun?
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Cubed is it? My mistake. You've lost me with your high rise living. Are you needing to bring hay up?
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I wonder if it was an eddy current device, a large copper disc spinning between two static discs embedded with permanent magnets. I would expect it would need gearing up. The whirly bird type speed regulator ( basically a centrifugal fan in free air) absorbs power with the cube of RPM. If I ever had to live in a high rise flat I would have an eddy current device above the window with an 8mm wire rope wrapped round the capstan 8 times and a 2kg weight on both tail and active end
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Had to google but broadly yes.
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There are sheaved pillows that can act as line breaks I.e. rock exotica’s downroper Irrespective you need to apply predictable friction to work a rigging system with any degree of finesse
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Joe Newton started following New kit! what have you bought?
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bought myself a little 4x4 van/ people carrier. Ideal training vehicle/ camper for weekends down to the coast. She's a thirsty bitch.
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Bit like a Holtzman shield in Dune.
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Well went and felled 15 spruce and cedar trees other day, 2 of use on site and little digger with fixed grab, all went very well after a late start at 10.30am but got all 15 down processed and stacked ready fir collection and all brash pushed in to a big burn pit, site was nice n dry and hardly made a mark on the ground, then today I went to pick first load of log up and what a difference the ground was after the rain we have had,, last photo was this aft parked up and all dry abd as soon as I got on my seat behind crane the heaven opened hence puss wet through in no time and wagon stood in 6" of water 😦😦
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There was a firm at the 2016 or 2018 APF who made automatic fall protection style lowering devices like you get at indoor rock climbing walls. They were pitching them for tree rigging. Don't recall technical details. I might have not asked. They might have not told me. Parafans are paddles spinning in open air. These things were encased. Perhaps oil and Tesla pump plates. Air resistance (and presumably that of other fluids) acts on the square of velocity. Presumably these devices deal with variable loads on that principle.
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HARRYTV joined the community
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Just to be clear, are you saying that EUR1300 for the DaWinchi (red thing with the turny bit) is expensive?
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Can't think of any. Rope moving along carries heat away, anything mechanical is a complication and potential failure point, need for maintenance etc. How would you control a mechanical brake? I think rope friction just wins on simple and effective. Only real problem is potential for riding turns but that can be managed.
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I do hope we don't end up in a VHS / Betamax situation.
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You heard him, kram. Get to the drafting table.
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You can't keep us in suspense any longer, Mick.
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Tis the season to see Fungi, fa la la la la....
ABtrees replied to David Humphries's topic in Fungi Pictures
Thanks Mick - that looks to be bang on.