Help with fans

[Tony Shepherd]

Hi

I have built myself three Marty Fans for this year.  I have done most of my sequencing but i'm struggling to get the sequencing right with one element.

 

I want the fans to look like propellers going backwards the sort of look you get with a timing light on a car or car wheels when they are caught by the street lights.  Can anyone give me a clue or a short sequence which achieves this.  They are 7 segment fans.  I hope this is clear?

 

Any help greatly appreciated

 

Tony

 

Tony@tshepherd.fsnet.co.uk

 

 

[Joe Polenchar]

Tony,

         Not sure on the going backward part.

Could you give a bit more info?

[sticks4legs]

I believe you mean the effect from car rims that, when they hit a certain speed it appears they go backwards. I don't think you could get tre timing grid small enough for the actual effect to happen but you could chase them in reverse

[Tony Shepherd]

I think I have cracked it.  I have created a short chase going backwards.  Then using the paste foreground option pasted it in repeatedly.  I have attached a screen shot.

 

Works quite nicely.

 

 

[Joe Polenchar]

I think I have cracked it.  I have created a short chase going backwards.  Then using the paste foreground option pasted it in repeatedly.  I have attached a screen shot.

 

Works quite nicely.

That's darn close to what I do to get the effect. I fade down from 100% to 0% for 3 tenths of a second and fade up from 0% to a 100% for 3 tenths of a second chase It and past for as long as I need it. You could also try it doing a negative chase.

Edited October 2, 2014 by Joe Polenchar