Spark/SparkCE Optical Joystick Sensor for JLF

Those pictures look tick.

Roll on the Ides of March…

any word who will carry it? prolly LL? i’d love to get put on a waiting list.

It’s pretty much a given that LL will carry it, and I expect AkihabaraShop will want some too. Other than that shrug any place that wants to carry them just has to get a hold of me.

I suggest, once you finalize the design, send samples out to all the online shops (focus attack, arcadeshop.de, etc) and give them a chance to test it out. Maybe you could even sell them the sample. You could get some reviews up on the front page of SRK, SDTekken, and eventhubs a bit before the final production too.

If you did that, you might be able to pull in a lot more orders and bring the cost down/explore more options.

Good shit Toodles, that thing looks beautiful. I actually really like the bright yellow color, it makes it kind of distinct and draws the eye nicely, especially with the blue gate with it.

I think I will buy a sample and do a detail technical review and reports on every single different and off set, including amount of weight on each direction, exact timing down to the milliseconds on activation and deactivation of the switch. Exact throw and such. I always wanted to do a technical review like this.

I’m definitely down for that, but I don’t know how exactly you’d do the testing.
Testing for the force required for activation seems a little weird to me because there’s no physical contact between the sensors and the actuator. Any force required is only the force required to move the shaft, so the spring and any inertial forces which would vary from stick to stick.
As for timing, I think that may be difficult for you to test. The delay between when the actuator actually crosses the line and when the logic on the 5 pin connector changes would be measured in nanoseconds. The only thing delaying the change voltage on the input side of the buffer is the trace resistance and capacitance of the copper traces, which should be crazy small; nano- if not pico- or femto- second small. The buffer itself should have a max propagation delay well under 10 ns.
Let’s assume for comparison’s sake the little metal tabs that moves when a microswitch is pressed moves at the speed of sound. Obvious a lot slower, but good enough for the comparison. Let’s also say it travels 1mm at the tip. 1mm at the speed of sound takes 2.9microseconds, 100-1000 times longer than the activation of the spark should take. Worse yet, physical switches suffer from bouncing:
Debouncing
The microswitch-style ones used (B and O) had average bounces cycles of 1-6 ms on press, and significantly less on release. The Spark doesn’t suffer from bounce because there’s no physical movement.

But I would definitely look forward to reading anything you can determine by testing, for certain. At one point, I was certain that wireless pads had to be laggy compared to wired, but testing set me straight on that one as well.

That looks legit.

Single spring replacment for the Spark?

Looking good toodles, can’t wait to git me one!

Anyone happen to know the Sanwa Flash spring tension rating? Kowal probably would.
I had a chance to check out Brighenne’s Flash and I thought the tension felt perfect.

This got me thinking about getting a single spring replacment for the Spark when I get one. I don’t like the multi spring approach anymore as I find that the springs usually never settle properly and the tension sometimes feels uneven.

Currently I’m using an LS-55 spring in my JLF with Cherry switches. The tension is just right for me with the cherry switches adding little resistance. However if I remove the microswitches the tension is too loose–again for me.

I’ll hit up a few hardware stores and see what I come up with, but I’ve already gone down the whole Home Depot variety spring pack and found nothing in a single spring solution.

That part is fairly simple I think… Measuring the actual angle for the joystick to be tilted, something like this doesn’t actually need any expensive equipment. Just a camera that are capable of 1000fps should work. Same with deactivation. Hook it up to a computer and capture the exact timing the button release relative to the angle would do just fine. I have one of these EX-FC100 Digital Camera, High Speed, Slow Motion, Shutter Lag | Casio Exilim and that should do the trick.

Once we get the exact angle after some testing, we should be able to detect some form of lag. However, you are 100% correct. with sub-microsecond respond, it is probably not going to do much. I think the more important point is accuracy and consistence. At any particular angle, is a normal Micro switch going to behaves exactly the same with constant timing? And how does the Flash compare? What percentage of improvement can we expect? I am much more interested in generate spreadsheets of data rather then telling people “Oh yes, this feel great!”.

Toodles you are single handedly making all my joystick wishes come true. A round gate optical sanwa? Insane. Thank you will buy as soon as they are available.

Samples of the production housings are on their way, should arrive Monday. We’re looking good for the late March to mid-April time frame.

Any chance of gremlin having it on launch day? or would I be better asking gremlin?

You mean people will be able to buy this product in March/April? And they will finally have a product equivalent to Sanwa Flash1 once again? :amazed:

I don’t care it’s not out in time for MvC3 release…
Coz I just finished reading pages about Sanwa Flash1, and how people have been fighting(i hope that’s the right word)…for all these years…probably 3-4 years to have this thing… Since Sanwa has stopped producing Flash1 sticks since 2003, right?

So I’m happy that it’ll be available soon.

That’s really up to Andy more than me. But I will try to talk with him well before to try and interest him in an order. People letting him know that they want one certainly wouldn’t hurt.

Nice idea :wink: I’m absolutely interested; since the original is discontinued for a few years now.

I’d keep lizardlick on auto-refresh on my second monitor if that happened.

@toodles - What about eBaying off a few more to help offset cost? I don’t think anyone wants to see you in the hole for all the great work you do.

I really wouldn’t feel comfortable with that. I want those three that got ebayed to be only ones released before they’re fully available.

I have been watching this thread quietly for a while now… cant believe its almost here…

Thank you so much toodles for the work you put into this stuff… cant wait to buy at least 5 of these!