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Showing content with the highest reputation on 09/17/2020 in all areas

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    Some of you may have seen the pods Bingo from HBMRC club has been developing recently. This is his party, but as he hasn't yet begun a dedicated thread, I will get it started. This is the idea. Having driven ff050 sidewinders in the MR Slotcar McLaren F1 GTR when they came out, I was impressed with the tractability of a low powered, low profile motor in my favourite Sidewinder config. I badgered Paul until he got this underway, and has since presented me with a series of prototypes based on the CAD below He has printed these in PLA + They are very stiff, Paul has had to do a couple of tricks to reduce the risk of splitting along the printed layer lines. The pod he delivered tonight which I used has had a good try out. Tonight he dropped by a pair of pods fitted with a couple of motors. These are the two top pods pictured below. The bottom pod has a tiny ff030 motor fitted. One version of the ff050 pod takes 5.5mm pinion with 17.5mm spur or a 5mm pinion with 18mm spur, the other is for a 5.5mm pinion with 18mm spur. Small cars often have small OD wheels and the use of a 17.5mm spur just provides a little more ability to get track clearance with low profile wheel/tyre combos. Use with single inside flanged ball race, oilite or brass bush to retain maximum space for wheels. I actually fitted this one with a couple of nylon single sided bushes I had lying around from an unkown source. A decent, wide, brass bush would give more surface area for gluing in and avoid what I spilled with thin CYA.... ooops. The lower profile of the ff030 and ff050 enables these to fit under tray interiors that cannot accommodate a higher standard FC130 motor Working around the feeding trough call, I fitted the 5.5mm brass pinioned pod +18mm spur into a fairly well worked Sideways Capri, that had been running a standard Flat-6 angle-winder pod. I swapped over the same wheels/tyres at the bask I initially tried it 9:36, but it was just too low, so I switch to 9:32, and that felt a lot better. At the moment, the fiddle of getting the motor in place, with the power connection tags sticking out the end, means I had to hot glue it in place. I actually ran about 20 laps before I realised it was just sitting in place,and the direction of pinion turn, was all that was stopping it popping out.... This test bed car was running 5.5s in standard config. I quickly matched that with the ff050 motor which is 24.5k 95 g/cm torque, = 5.9 watts, versus the Flat-6 yellow which is 20,500 rpm 200 g/cm = 10.25 watts Those who regularly use low powered cars will know that a car which is tractable - easy to drive, will often match a much higher powered car with is a bit twitchy. But I got the Capri into the high 5.3s after a bit of body screw tweaking. I haven't touched the weight that was used to balance the original setup. I was able to do fairly consistent 5.4s and 5.5s. I have a few more adjustments for Paul to copy, which I created with a dremel.... Ahem... This pod is going to be quite useful. He is also working on inline versions for the ff050 and ff030, to suit very small cars.
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