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Margouillat AR60 Hi, I decided to begin new a projet starting from AR60 axle, I find it very interesting "thumbsup" . I thus start by making work the credit card :
The frame will be the same one as my sportman, but with a AR60 axle. Manufacturing of a first prototype, a support for the servo/4 links http://img547.imageshack.us/img547/6...illatar602.jpg http://img18.imageshack.us/img18/260...llatar6013.jpg http://img831.imageshack.us/img831/5...llatar6017.jpg http://img836.imageshack.us/img836/8...llatar6015.jpg http://img823.imageshack.us/img823/9...llatar6014.jpg Steering angle is impressive, 10° moreover than with my ax10 sportman :shock: I do not know if the axial universal set will support works with such an angle, that will be the occasion to test the famous Super 300 HD :mrgreen: http://img842.imageshack.us/img842/2...llatar6011.jpg http://img833.imageshack.us/img833/4...llatar6010.jpg A first overall picture of the project, I received my upper carbon frame by Tomi. Super job on the way "thumbsup""thumbsup" http://img846.imageshack.us/img846/3...llatar6019.jpg http://img690.imageshack.us/img690/6...illatar606.jpg http://img442.imageshack.us/img442/2...illatar604.jpg It remains still much of work, but I start with really likes these axle :twisted::twisted: |
Re: Margouillat AR60 Wow that steering angle is awesome! I am starting to see the appeal of that axle. The more I see all the slick builds on here the more I want to give my credit card a workout too. |
Re: Margouillat AR60 This whole car is impressive!. Completely unique design of the chassis and tranny. Great work! Big thumb up |
Re: Margouillat AR60 Hi, Thanks for yours comments "thumbsup" More... The support of battery is made, it passes just between the front lower links. http://img42.imageshack.us/img42/236...uillatsm11.jpg http://img442.imageshack.us/img442/6...uillatsm15.jpg The support is fixed on a reinforcement between the axle and the support of servo. http://img526.imageshack.us/img526/1...illatar604.jpg http://img6.imageshack.us/img6/9299/...uillatsm12.jpg I must install the electro one and I will be able to begin the tests :mrgreen::mrgreen: @+ |
Re: Margouillat AR60 Very nice work! I like the idea of using an ar60 axle on the front. |
Re: Margouillat AR60 Sick as usual mate !!! "thumbsup""thumbsup" |
Re: Margouillat AR60 I like very much your servo mount and that front X brace! :D |
Re: Margouillat AR60 Cant wait to see how this one turns out "thumbsup" Nik |
Re: Margouillat AR60 Hi, Thanks !! Quote:
Some news, front axle (prototype) is finalized http://img845.imageshack.us/img845/6...ouillatsm1.jpg http://img17.imageshack.us/img17/649...ouillatsm5.jpg Margouillat AR60 ready to run http://img836.imageshack.us/img836/9...ouillatsm7.jpg http://img12.imageshack.us/img12/939...ouillatsm9.jpg First test and it is not too badly for a beginning :roll: First problem, foreseeable, the front axle hangs everywhere… I will stick a piece of tube PVC to make it unrippled. http://img833.imageshack.us/img833/9...uillatsm11.jpg After some tests, I changed the front shock. They were into semi-droop, and I put the normal ones with springs pink :lmao: http://img209.imageshack.us/img209/7...illatar602.jpg http://img341.imageshack.us/img341/9...illatar601.jpg The behavior is much better with very light torque twist, but I should be able to decrease. @+ |
Re: Margouillat AR60 Hi, Some news, More clean 4links http://img835.imageshack.us/img835/3...illatar602.jpg Servo is put very low on the axle http://img689.imageshack.us/img689/3...llatar6032.jpg 4mm titane steering links http://img211.imageshack.us/img211/5...illatar603.jpg http://img69.imageshack.us/img69/160...illatar604.jpg Nice steering :mrgreen: http://img252.imageshack.us/img252/4...illatar609.jpg The wheel almost comes to rub the differential cover :shock: http://img24.imageshack.us/img24/113...illatar605.jpg @+ |
Re: Margouillat AR60 that steering is incredible.....very nice work......very impressed by your builds and driving...!! :) |
Re: Margouillat AR60 Great build! Really inspiring"thumbsup" Any updates or changes on this? |
Re: Margouillat AR60 Hi, no news, this project is stopped for the moment. The configuration of the front axle is interesting, but generates much torque twist… It is an interesting problem, but I returned to the AX-10 axle. It is necessary to go to the drawing board and to re-examine the fitting of the front axle. |
Re: Margouillat AR60 Bonjour, Some news. I was not satisfied with the previous configuration, therefore after having looked at different construction starting withf AR60 axle, I took again the project. Two supports cut in a “aluminum L” of 4mm thickness. http://img29.imageshack.us/img29/3317/ydkl.jpg Supports in place. http://img405.imageshack.us/img405/2504/2oc8.jpg The 2 supports are intercalated between the axle and the supports of links/shock. http://img13.imageshack.us/img13/2499/lcto.jpg L'appui central où est fixé le servo http://img836.imageshack.us/img836/613/ftqx.jpg With the steering rod. http://img825.imageshack.us/img825/8392/9qa6.jpg http://img547.imageshack.us/img547/2788/k9t5.jpg http://img69.imageshack.us/img69/7919/v2lv.jpg The cycle of operation of the steering rod is correct. http://img577.imageshack.us/img577/5435/c0rj.jpg http://img198.imageshack.us/img198/3490/osys.jpg http://img534.imageshack.us/img534/7046/rovo.jpg http://img19.imageshack.us/img19/5425/2orx.jpg http://img16.imageshack.us/img16/3945/i3os.jpg It remains much of point to regulate, but for a first proto, I like the fitting of the unit. That seems to me promising :mrgreen: @+ |
Re: Margouillat AR60 Hi, I make a prototype of frame for to work on the geometry of the links and general architecture. I did not have any more a delrin, I thus did it out of aluminum 3mm... The idea of this frame is to have links a little more longer compared to Margouillat AX-10, especially on the front, to see whether that influences the behavior of crawler. Now, the upper and lower front links are appreciably the same length (4.45" upper. and 4.6" lower). The lower back bonds will be fixed differently and longer, but the skid should me be modified. The lower rear links will be fixed differently and more longer, but the skid should me be modified. http://img441.imageshack.us/img441/7673/5li5.jpg http://img845.imageshack.us/img845/9960/cdvm.jpg 3" clearence under front skid. http://img405.imageshack.us/img405/9255/nygu.jpg http://img703.imageshack.us/img703/4504/7cun.jpg http://img62.imageshack.us/img62/3156/h74x.jpg http://img832.imageshack.us/img832/7739/00h1.jpg http://img829.imageshack.us/img829/7185/ag84.jpg @+ |
Re: Margouillat AR60 Very interesting approach to servo mounting. I prefer the previous servo placement better though as it looks like the new location has quite a potential for hang ups. New design does look promising though. Have you tried more triangulation of you front lower links? Perhaps mounting them similar to the rear of the skid? |
Re: Margouillat AR60 Hi, I do not think that the servo hangs, but only the tests will confirm it. The servo is behind the tube of the axle and does not exceed, but I have the possibility of placing small skid under the servo , if that hangs. I appreciate this configuration of servo because it is placed very low and the kinematics of the rod of direction is good, without parasitic effect (the rod of direction remains parallel to the axle all the time). I cannot more triangulate the front lower links because they would touch the motor. This configuration with the engine forwards is a personal choice which has some constraints but I like. Like any choice, there are advantages and disadvantages. But it remains much of modifications to make, before hoping to start to scrape rocks. I will re-examine the fixing of the front shock because they are too much drawn aside and touch the wheels in full steering. |
Re: Margouillat AR60 Hi, I made a new supports of links/shocks for the front axle. http://img266.imageshack.us/img266/2217/6l8n.jpg Thus the tires do not rub any more and I benefit from the maximum angle of the steering :mrgreen:. With the carbone wheel, I use a small hub, 350, the axle track is 27.5cm - 10.8". http://img27.imageshack.us/img27/2259/c7xj.jpg http://img209.imageshack.us/img209/8/kmim.jpg http://img69.imageshack.us/img69/7124/zk3j.jpg The front shock are more tilted. http://img33.imageshack.us/img33/9328/yfba.jpg @+ |
Re: Margouillat AR60 Keep up the good work. I've been toying with going to an AR60 front because of the extra amount of steering the axle allows. However, fighting the servo location and link geometry has me hesitant. |
Re: Margouillat AR60 Quote:
For the moment I still seek the good configuration, before changing my old AX-10 axle by AR60 axle. But it remains still much of work :mrgreen: |
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