New Test Rig. Testing Past 10ms

Hi Guys
Currently making a custom made test rig for testing Scorpius, SSD and Carrera lapcounting and lane changing.
It needs to be deadly accurate so Ive had to pull on all my joinery skills and give the Makita tools a good workout.
The loop is constructed using the lamination technique building up layers 3mm at a time.

The car is a 1/24 Metal chassis Group 7 car. No lid.
Foam tyres, 55k rpm Parma Super 16D motor.
Just adding paint and copper tape to complete.
Testing transparency is of utmost importance here.

Should be a fun project to test all the new products in the pipeline for 2021.
Last pic shows first top coat on.
More soon on this.

Rick

Getting really close now. Copper tape in place.
Just need a few dabs of solder, a power supply, a 50A Scorpius WAM, dongle, software and Scorpius controller and off we go.
This project is turning out to be a lot of fun as I get to use other hobby skills like joinery etc.

Hi Guys,
So I managed to get the loop up and running with the Group 7 chassis and motor set up.
Previous best using a previous loop was 10m/s

Here the 6A power supply wasnt enough so out with the 30A lab supply.
Most I can get out of this supply is 16V so 16V it is.

Using a 30 second timer I count how many laps.
Knowing the diameter is 1810 we can deduce that 66 laps in 30 sec equates to 12.61 m/s
Or 45.396km/h
I realise now the faster you go the more centrifugal force, which in turn is essentially down force.
And the motor was starting to smell so yeah it was working hard.

I think though 12.5m/S is a good enough test speed seeing most digital cars never see half this speed.

Should I make a drag strip? Hmmmm


Rick

Dr_C said:

I thought this thread was about sharing ideas and progress to establish a method for testing slot cars at speeds in the range 10-15m/s. Assuming the plan is to reach the upper end of that range I.e.15m/s then some collective ideas and knowledge sharing may help? right?

We all like slot car bones to chew over... especially those that are race speed related...

c

Click to expand...

Just sharing some ideas here😊

All considered years ago. But the reality is theres many many types of slot racing.
Even on a 5m straight in a 33m track at 16V with a standard NSR or Slot.it the SSD XLC lane changer would deslot the car. And from memory that was around 5.5/S approx. maybe more.
Im guessing Ninco XLC is good for 4m/s before deslot and Im guessing Carrera is around same as SSD.

And we discovered slowing up to negotiate an LC is not acceptable as the driver you are trying to overtake is suddenly 2 metres ahead of you.

We learnt a long time ago Digital employs more realistic speeds. And theres a strategy.
So speed was never a barrier or issue and remains so.

Same with AFX. They go so quick you can hardly see them. Lane Changing really doesnt suit it at all.
Nor winged cars, Group 7 upwards etc.
This is the reality

So as fun as it might be to test something that no one will get to see it work and appreciate is just that, fun.

The reason I prefer a loop ( I thought of using a simple electric fan I have here, metal too) is that you are testing in the environment its meant for.
Ie vibration, track resistance, gear resistance, heat resistance, motor EMF, sparks in rails etc. All huge important factors.
This way you can test multiple things in one time frame. And give a more real world result.

Rick