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aussieslotter last won the day on February 17

aussieslotter had the most liked content!

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About aussieslotter

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    Digital Dude
  • Birthday 12/24/1964

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    Sydney, Australia
  • Interests
    Digital slot car research and development, racing digital slot cars.

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  1. Hi Guys, The disk decoder was first developed and shown by Scorpius Wireless. Ideas conceived of years ago are now possible with better robots, better tolerances, lower fault rates etc Example the F1 chip we announced in 2011 and the disk decoder now in progress are possible due to Nordic releasing their 3.2x3mm nRF52832 wafer chip. Better manufacturing has seen more robust and smaller components possible. However I think its right that hobbyists show the art of the possible when inspired by the othen follow (if it makes sense) guided by their limited actual experiences..Seems easy these days to take existing and/or cutting edge technology. by other manufacturers, make a variation and call it innovative. Rick
  2. Hi Guys Ive been forced to put LED on the bottom of the PCB due to the fact a hole in the PCB for the LED to shine through would take up space at a critical place where we need physical strength in the PCB but also where a number of crucial tracks need to go. So let’s draw it to get a better understanding of how this could work. Here we have a 1.8 wide LED right behind a 1.8 mm wide blade in a 2.7 mm slot. First pic in typical middle position. Second pic shows guide hard against rail. You can see no contact between LED and rail. All images including braid are drawn exactly to scale. Braids and all dimensions measured using digital vernier calipers to nearest 0.05mm and drawn as such. Non crucial elements may not be drawn to scale.
  3. By drawing it multiple times in different views you really get a feel for the project. Here’s the latest side view incorporating all the recent small but numerous changes. As you can see we only have 1.1mm of height space to work with. And a huge chunk of board missing right down the middle. Rick
  4. Here’s an example of our dishonest ABC wasting our money and you wonder why the call to defund them.
  5. Similar to a jigsaw puzzle. Sort of. So the process begins.
  6. Thought I’d update my Carrera system and spoil myself to a C7042 Advanced powerbase.
  7. And a blast from the past the first Scorpius prototype the size of a house. And an aerial as long as a fire hose.
  8. Thanks for the compliment Chas. Size is important for obvious reasons, F1 cars, old classics, even motor bikes among others. But anyone knowing how the floating motor pid should work would realise blutacking a car decoder affects handling. The photo below shows the current generation Scorpius chip on the right attached to the floating motor pod. Attached wires add resistance due to inflexibility even we use smallish wire gauges. A guy looking for extra tenths is not going to want the motor pod interfered with. And on the left the worlds smallest functioning car decoder attached to the chassis rather than the motor pod. So the size matters for more than 1 reason . Rick
  9. Yeah probably all the more reason to stick with 3A mosfets so you don’t get tempted to run big currents through a board with tiny tracks and other vulnerable low current components. After tests we may find it beneficial to actually step up in size if reliability becomes an issue. A 12x7 decoder, time will tell and it will still be micro. The motors used in digital typically have 2A useage on take off and settles down to 0.3 to 0.5A almost immediately. One amazing test session using the vertical loop test track seen the Scorpius chip out survive a NSR 46K Shark at 18V after 3 x 10,000 lap test sessions. The motor got that hot it melted the motor mounts and the motor fried. The Scorpius chip was installed into another car and it ran perfectly. So we know how not to over design a chip as well as design it. Successful digital is very much more to scale speeds. Anything more than a 25K motor will bring slower lap times as it’s unsuitable rev range is exposed. For home tracks 18K motors are perfect. Want more grunt just up the voltage. Not the motor. Also passing through any lane changers at high speed despite the car so testing to unrealistic speeds we find is a waste of resources as we have so many projects we want to get to. Good news. John is 99% finished on the firmware for this, he has been working on several other contracts hence the delay, but I’ll be getting some working samples late next week. Then onto the loop where the plan to try to destroy it. Below the recent video I posted showing testing going on on the loop at 8.8m/s
  10. ABC is the most biased of the lot. After that The Project. Pretty sad when you think tax payers pay for the rubbish ABC dish out. They must be concerned too if they need to say “save the ABC”. Typical example was telling us all the fires last year were the worst on record. They weren’t by a long shot. And then using it to back up the climate change bullshit.
  11. I find babying kids with gimmicks to slow down cars doesn’t give them a sense of reality or develop skills. Best thing is to get an adjustable voltage power supply and turn it down to 8V. As they learn turn it up. The Scorpius Wireless controller has a learner mode where you can adjust the speed from 0-100% in 1% increments. Cool function. Rick
  12. Channels 2,7,9 and 10 are told what they can say and what they can’t. Lots of fake and biased news. I have all the news outlets except Sky Australia blocked on Farcebook. And I refuse to watch TV news or The Project.
  13. Revised state of the art nano board design and innovation plus. Will it be possible.....? Enjoy.
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