Paul Wightman Posted October 1, 2006 Author Share Posted October 1, 2006 Something on your mind Paul....?? You never had problems dissipating your teats? Frogfreezer, Winch motors can get very hot, like melting internal soldered joints and destroying insulation materials, a good indication of heat is if you can't keep your hand on the motor its hot! Quote Link to comment Share on other sites More sharing options...
rtbarton Posted October 1, 2006 Share Posted October 1, 2006 The copper tube is central heating micro-bore 8mm dia. This is wound onto a former on the lathe whilst being pulled through a pair of rollers mounted onto the tool post to flatten the tube to 5mm and to provide tension while forming the coil. The lathe saddle is driven in reverse screw cutting at 2 ½ tpi which tracks the tube onto the former for 10 revolutions and hey-presto a coil! Thanks Paul, thought it might be something like that Quote Link to comment Share on other sites More sharing options...
MogLite Posted October 1, 2006 Share Posted October 1, 2006 Good work Paul - and glad to see you back to your old tricks Nice work on the copper pipe - you'll be able to make your own by-pass if you ever need it Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted October 1, 2006 Share Posted October 1, 2006 The copper tube is central heating micro-bore 8mm dia. This is wound onto a former on the lathe whilst being pulled through a pair of rollers mounted onto the tool post to flatten the tube to 5mm and to provide tension while forming the coil. The lathe saddle is driven in reverse screw cutting at 2 ½ tpi which tracks the tube onto the former for 10 revolutions and hey-presto a coil! Good god Paul, with the pornographic pics of copper pipe and the word-porn with it, some Copper Pipe fetishers will have no knleenex left. Nice work BTW..have you considered plumbing your washer bottle / winch cooler into a Piggy-Kettle for on board tea to save brew up times Nige Quote Link to comment Share on other sites More sharing options...
Paul Wightman Posted October 1, 2006 Author Share Posted October 1, 2006 Nice work BTW..have you considered plumbing your washer bottle / winch cooler into a Piggy-Kettle for on board tea to save brew up times Nige No but I do feel there is some mileage in a copper pipe round the exhaust manifold for the production of a caffe latte whilst on the move! Quote Link to comment Share on other sites More sharing options...
tobes Posted October 1, 2006 Share Posted October 1, 2006 Hi, a bit off topic, but paul do you have any photos of your fiat panda 4x4. i remember seeing it at slindon and have just bought an mot'ed one for £100 Thanks. Back on topic....... Very nice work, i have long been an admirer of piggy, looking forward to seeing you back at slindon, and the new truck sounds intriuging already! Not in the slightest bit jealous!! Toby Quote Link to comment Share on other sites More sharing options...
BogMonster Posted October 1, 2006 Share Posted October 1, 2006 There are (were) some photos of Piglet on David Bowyer's website under the Dyneema section, his site is down at the moment though, I just checked it. Quote Link to comment Share on other sites More sharing options...
dollythelw Posted October 1, 2006 Share Posted October 1, 2006 lovely bit of Fab Paul ZF74 pump would give the steering a kick speed and powerwise, physically a little smaller than a Rover so its a piece of cake to fit - VW breakers are a good source Quote Link to comment Share on other sites More sharing options...
Paul Wightman Posted October 1, 2006 Author Share Posted October 1, 2006 lovely bit of Fab Paul ZF74 pump would give the steering a kick speed and powerwise, physically a little smaller than a Rover so its a piece of cake to fit - VW breakers are a good source Thamks for the info, I'll see how it performs this weekend. Quote Link to comment Share on other sites More sharing options...
dollythelw Posted October 1, 2006 Share Posted October 1, 2006 No worries, ZF74 - 12ltr/min at 800rpm, 120bar PRV Rover - 7ltr/min 70bar if you tweak it is it one of Steerforths? Quote Link to comment Share on other sites More sharing options...
will_warne Posted October 1, 2006 Share Posted October 1, 2006 A couple of very nice mods Paul. Twin XP running 24V was something I was thinking about earlier this year which is why Nige insisted I needed the Super Heavy Duty Kitty Gripper! I think the cooling's a great idea; its not something I had thought of. As you say, heat dissipation is the big issue running this sort of setup although the fact that there are a pair of motors sharing the work helps. Have you resoldered the joints with silver solder? Its a mod the Aussies do to make XPs last longer on 24V. Hydro assist is annother great mod. I'm still trying to weight up whether to go full hydro or just hydro assist. Either way the results are superb off road. I'm glad you're felling a little too Quote Link to comment Share on other sites More sharing options...
Paul Wightman Posted October 1, 2006 Author Share Posted October 1, 2006 Will, the XP motors are welded joints and full hydraulic steering is not street legal. Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted October 1, 2006 Share Posted October 1, 2006 <cough>I have to be honest in the past I found some of the "you don't want to do it like that" or "I know a bloke who does that but better" somewhat off putting so I don't want to get into heavy discussion thanks <cough> Hmmmmmmmmmm or is it me just thinking the above ? Nige Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted October 1, 2006 Share Posted October 1, 2006 Full hydraulic steering is not street legal. Don't tell Jez Quote Link to comment Share on other sites More sharing options...
dollythelw Posted October 1, 2006 Share Posted October 1, 2006 ask Jez if he cares, it passes an MOT Quote Link to comment Share on other sites More sharing options...
Paul Wightman Posted October 2, 2006 Author Share Posted October 2, 2006 MOT by post? Quote Link to comment Share on other sites More sharing options...
dollythelw Posted October 2, 2006 Share Posted October 2, 2006 MOT by post? I take it you're joking? why would I do that? I find its easier to read the MOT regs and build cars within them, any queries ask Fridge, he came along to the test. Quote Link to comment Share on other sites More sharing options...
02GF74 Posted October 2, 2006 Share Posted October 2, 2006 The coils are held on with stainless steel straps with folded ends to keep the coils together and a couple of jubilee clips. Excellent work - I thoroughly approve. Just a couple of comments - did you consider using plumber solder in between the coils? Serves two pruposes - keep them togethers so you can ditch the stainless strap and the axtra metal helps heat transfer between them , not that it is needed. and paint the coils matt black for optimum heat radiation. Quote Link to comment Share on other sites More sharing options...
Michele Posted October 2, 2006 Share Posted October 2, 2006 First the winch.Two 12v 6hp XP motors running on 24v water cooled. YKES! Paul...amazing...I think it's the right word. And you make it look oh-so-easy! Glad to know you're back and kicking. I hope to see you and Piggy again at the next winch challenge. Quote Link to comment Share on other sites More sharing options...
SteveG Posted October 2, 2006 Share Posted October 2, 2006 and paint the coils matt black for optimum heat radiation. I might be thick, but how does this work????? Quote Link to comment Share on other sites More sharing options...
Paul Wightman Posted October 2, 2006 Author Share Posted October 2, 2006 "I take it you're joking? why would I do that? I find its easier to read the MOT regs and build cars within them, any queries ask Fridge, he came along to the test." Yes I was joking! We all know that passing an MOT test is no proof of a vehicle being road worthy or conformation that ANY modifications are legal or accepted by VOSA. One person who could probably confirm if a modification is permissable would be the producer of the insurers engineering report following an incident where one was involved in an accident which resulted in someone being reduced to cabbage status. Quote Link to comment Share on other sites More sharing options...
Paul Wightman Posted October 2, 2006 Author Share Posted October 2, 2006 Excellent work - I thoroughly approve.Just a couple of comments - did you consider using plumber solder in between the coils? Serves two pruposes - keep them togethers so you can ditch the stainless strap and the axtra metal helps heat transfer between them , not that it is needed. and paint the coils matt black for optimum heat radiation. I did consider solder and even started to solder one of the coils. Problem was keeping the coils tight on the motor body and close to each other while soldering and the soldering not damaging the heat sink compound. Having made the straps and clamped the coils onto the motor body I thought, sod it, that will do! I did consider painting the inside of the pipe matt black but decided to use a whetting agent instead. As for painting the outside, how can I maintain full blingness if I can't polish it? Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted October 2, 2006 Share Posted October 2, 2006 If you soldered the pipe to the body you wouldn't need heat-sink compound as the heat would transfer directly through the metal. Quote Link to comment Share on other sites More sharing options...
Paul Wightman Posted October 2, 2006 Author Share Posted October 2, 2006 If you soldered the pipe to the body you wouldn't need heat-sink compound as the heat would transfer directly through the metal. I was concerned about the efect of the heat on the motor while soldering. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted October 2, 2006 Share Posted October 2, 2006 If, as Will says, they can get hot enough uncooled to melt solder then they should be OK? I'm guessing stripping them down and just working on the housing would be a good precaution. BTW any idea how much current the setup draws on an average pull? Quote Link to comment Share on other sites More sharing options...
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