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zardos

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Everything posted by zardos

  1. I also seem to remember that the dual coolant sensor switches were a three position switch with the following outputs Off output 1 on output 1 and 2 on
  2. You probably want the "fan off" position to be a 12v "buzzer on" position so that you have an annoying sound to remind you that you have turned the fans off, otherwise it is likely that turn the fans off for wading and then forget to turn them back on and then your engine overheats.
  3. Given the current weather ice filled pipe can help support the pipe as well as sand.
  4. Yes hinges on left side (if the gate bottom is nearest in the picture 😉 ) but as the diagram in my first post. Also really need a router to build to cut out the half lap joints in the middle of pieces.
  5. Picture of the gate frame as an example of the design (this is similar design to my lidget garage doors
  6. So I have some classic barn style doors on my garage as this gave the maximum height (thought mine do have a top and bottom frame pieces it is possible to have a design not with there). I strengthen them up by adding a thick ply back sheet and changed the hinges to bolt through instead of screwed on. But basically these are constructed in the same fashion as a gate I built. The barn door style does have the drawback that it needs a large space in front to open. The basic design idea is Basically for the gate I made an rectangle frame using 2 x 4 treated timber with half lap joints at the corners (screwed and glued) and the middle and diagonal braces were also half lapped in. The cover front and back with the material of your choice. Best to coach bolt hinges and materials front to back so the outside only has the flat dome head so nothing to easily undo. Security, each door can have a bolt top and bottom with padlocks and a gate hasp with padlock to connect the 2 doors.
  7. My 1950's house must be an exception then as I found out recently that I have 3 phase to the house but only currently using 1 phase. I hope that new houses now should be also cabled for 3 phase, as the drive for electric cars significantly increase the electrical demand and having 3 phase allows you to go for 11Kw or 22Kw chargers (even the base 7.5Kw takes about 32A from the usual single phase max of 80/100 Amp)
  8. This is because they need a 16A supply, while a ring main is usually 32A, taking half of that for 1 device is going to lead to you tripping the fuse quite often as all you need to do boil a kettle and run a few over devices on the same circuit and you will reach max load. Much better to have it on a separate circuit much like other high load devices (electric cooker point, immersion heater, electric shower, etc)
  9. My understanding of ODB2 Readers is that OBD2 is primarily focus on the engine management but can talk across the CAN bus to other modules, while there are standard codes for the engine, car manufacturers like to use non standard codes for a lot of stuff and they charge for access to what these non standard codes mean. Also for some of the more advanced stuff like talking the the ABS or other ECU's the reader needs to understand and send specific CAN bus messages which are again manufacturer specific and again manufacturers charge for access to this stuff. So a lot of the really cheap readers, just read and read the standard codes and just tell a code number for some of the non standard ones, which you might find a description on the Internet for but it might be for the wrong vehicle. The really cheap readers don't tend to do talking to other ECU's as well. There are DIY range ODB2 tools that are slightly more expensive but the company making these tend to have paid the manufacturers for the non standard info and can give better messages and read/send CAN bus messages. When looking in to why other Non Landrover (Hyundai) ABS light had come on I bought https://www.obd2shop.co.uk/wholesale/foxwell-nt530-scanner-free-update.html And it has paid for itself already instead of paying a local garage £30 a time for a diagnostic scan. The NT530 can have up to 5 different make diagnostics/control databases load it to it at one time, it comes with 1 database for that price for you particular make of car, other databases could be purchase for about £60 each (if you wanted more than 5 make database you can just unload one and load another you have purchased) I can do active tests on the ABS unit and even get it to run it's auto ABS bleed system (This is the type of thing a cheap ODB2 Reader won't do because these are really custom CAN bus messages) The only downside is that the Car does not support Auto VIN reading, even though the system is capable and does the query, you then have to type in the VIN number in each time you connect the device (as the device has no way to remember a previously used VIN) and not having a full keyboard it takes a bit of time to enter it.
  10. Also should have said there is also an interaction with length of cable which affects the voltage drop, etc As cable resistance is measured per meter. And these jumpstart packs tend to have very short leads (some not much more than the distance between battery terminals). Standard jump leads are usually many times longer to reach from one vehicle battery to another and thus have to be bigger.
  11. The current carrying capacity of a cable is mostly about heating effect caused by the resistance of the cable over time before the cable gets too hot for the insulation to melt and then the metal cable to melt. So this is affected by many factors, e.g. resistance of the wire, insulation type and melting point, current ambient temperature, air flow around the cable, etc, etc. But the big one in power packs is time the current is flowing for and it is expected that the current is flowing for a very short time to start a vehicle. And they also tend to have a limited current generating capability (so what it does not say is that it can kick-out 4000 Amps for 0.01 of a second) before flat. For example some electrical products have specifications like "rated at 300 amps continuous, 600 amps for 20 seconds and 2400 amps for 1 seconds. " Taken From https://www.durite.co.uk/ItemDetails/ItemDetails.aspx?ItemNumber=060533&SingleResultCriteria=&catid=75299 As you can see it can take 300Amps continuously but higher current for shorter period of times (before it would melt)
  12. So not that Model but a Skyes-Pickavant model Basically an LED with resistor Two 18Z40 which seems to be a transient voltage surge suppressors are radial leaded varistors (MOVs) and a 10uF Capacitor all across + to -
  13. You can also buy Surge protectors like https://www.weldingdirect.co.uk/12V-Battery-Surge-Protector So you don't need to disconnect anything.
  14. Gates of this size tend to be slide gates not hinged because the amount of force caused by the weight and leverage will need a very substantial point to fix to and probably multiple fixings to stop them pulling out. I've seen some gates with a taller hinge side with a diagonal down bar to help support the weight. The other option for hinged is to have a wheel/caster on the un-hinged end to help support the weight (then your un-hinged side diagonal is the right direction otherwise as @Anderzander say both should run down to the hinged side)
  15. Ah sorry that was £2.26 over budget 😁 Found it at Wickes in 100mm and cheaper and in budget https://www.wickes.co.uk/Manrose-Aluminium-Duct---100mm-x-3m/p/167627 I measured mine and it was 100mm The website of original link also has a stronger version and can handle a higher temp but at a much higher prices (but not as high a price as their rubber exhaust tubing).
  16. I used semi flexible aluminium duct when running my build in the garage, this seem to work well, I seem to remember I picked up a 2m length in B&Q but can only find shorter versions there. Just stuck it out the door and crushed the end a bit to get a better seal. So here is a link to a longer version https://www.ducting-express.co.uk/product/flexible-ducting/semiflex/semi-flex-3m-length-80mm-diameter Though you have to be careful it does crush easily and not good for sharp bends.
  17. A bit late, but M6 rivnut 9.1mm hole with 0.25mm to 3mm expansion should have worked in your 9.9mm hole https://www.orbitalfasteners.co.uk/products/m6-rivet-nut-thin-sheet-steel-grip-range-0-25-3-00mm-hole-size-9-1mm or even bigger grip range https://www.orbitalfasteners.co.uk/products/m6-rivet-nut-flanged-steel-grip-range-3-50-5-5mm-hole-size-9-1mm
  18. This might be big enough https://www.ebay.co.uk/itm/Bliss-HS2500-H-52-48-Hydraulic-Straight-Side-Power-Press-2500-Tonne-Ton-Rhodes/254389041448 😁
  19. For Drawing I have used Libre Draw (part of the free Libre Office suite https://www.libreoffice.org/download/download/) with circuit symbols extension (https://extensions.libreoffice.org/extensions/libresymbols) If it does not have the symbol you want you can draw it yourself and then re-use In the past I have used Visio with similar symbols addons, but moved away from paying for an office suite to a free one that is just as good. For Simulation I've used Qucs http://qucs.sourceforge.net/ But it can also draw The main thing is once you have connected line (wires) to symbols when you move the symbols the lines stay connected (this is what happens in Libre Draw/Visio) and then you have to know how to draw electrical diagrams (e.g. lines crossing don't mean they join, you insert a circular node for wire junctions, etc )
  20. You could charge it when mains is not available to charge it with a second 24v Alternator. Gigglepin to a dropper box where you could change a single alternator to 24v and drop it to 24v for things that needed it. I also thought they had a battery switch over system that would allow 2 batteries to be charged in parallel at 12v each and then switched to be in series to power a 24v item (a 24v winch in this case). The other simpler option is to just run a lower output ups (most 825VA/450w) which tend to use a single 12v battery and thus can be charge/run from a normal vehicle setup. If you want more power capabilities for more devises then run multiple 12V units
  21. Luckily for us the coach was all 24v so we could also use the engine alternator to run/charge it via a VSR
  22. Yes, you can use a UPS as a pure sign wave inverter, we used one on a coach motor home we had, it worked brilliantly. We picked up a UPS that was for sale because the battery was dead for £16 (inc p&p) With a few little mods it worked as what is usually called a "Shore power" device. The mods was to take it apart and find the the on battery power warning buzzer and clip the connecting leg (you could also de-solder it or for some you might be able to configure it off with software) We also extended the battery leads to an anderson connector to allow easy connection to a much larger than normal battery bank (about 300Amp Hours of capacity) We also connected up the mains input to waterproof caravan style external connector to allow powering from mains and battery charging. We kept it in the original case just with a hole for external battery leads. The downside of using an old UPS is that as the power output of the devices goes up so does the voltage of the batteries. Our UPS was about 700w output but needed 24v power supply, which was fine for the coach, higher output models used 36v or 48v and lower output models used 12v. So you need to carefully research what batteries are need.
  23. Sounds fine, except for isolator for winch and winch power and earth. Winch motors can draw more than 175Amp for extended periods of time. Depending on the winch this can be up to 500A, so anything related to the winch should be in 70mm2 really.
  24. Mine is in a similar position as "De Ranged" but slightly further back and quite tightly packed but even with a Rover V8 and twin oil to water coolers, the second fan of the twin staged fan setup never came on and the first fan came on rarely. It was piped with long lengths of flexible rubber hose down the gearbox tunnel. I think that the greatly increased water volume from the rear rad and the fact that it was not blocked with mud and the engine block itself had access to very unrestricted cold air which could escape out the side easily made it much cooler than my other v8 with a normal front setup.
  25. The 50mm cleats are designed to handle cable that is 7.8kg per meter
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