Seimitsu LS-56 / LS-56-01 Throw Reducer

Got mine fitted snug on my LS-56 in my Mayflash F500 (my workhorse stick) and it works really well. I fired up some Mushi for some micro dodging tests and it’s awesome. @PASTBLASTER also earned a spot on my stick for hooking it up.

Any chance these would be possible to make for 8 way gates?
 

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Got mine fitted snug on my LS-56 in my Mayflash F500 (my workhorse stick) and it works really well. I fired up some Mushi for some micro dodging tests and it’s awesome. @PASTBLASTER also earned a spot on my stick for hooking it up.

Great stuff, glad to hear it!

Any chance these would be possible to make for 8 way gates?

Tbh, I've not really used octagonal games but from my understanding I don't think this mod would work without adding extra throw back in. The microswitches only just trigger when they hit the U/D/L/R sides of the restrictor and from what I've seen the octagonal gates are pulled in at the corners. If you tried to pull the corners in any way then you would trigger the U/D/L/R directions but you would not be able to trigger a corner direction. I.e. if you tried to do a Hadouken ↓, ↘, → you would miss the ↘ input and just input ↓, →.
 
Just seeing this thread now.. very cool.

More than 2 Kowal plates would get pretty fuckty I think, pain to line up and screw in.

You'd be right in the ballpark of your version I'd imagine with one of Kowal's plates above the switches and one below, like a sandwich.

As alluded to earlier in the thread, you can make diagonals prohibitively tiny with these types mods with the seimitsu 'flower' octo gate.

I find Kowal's plate to be super useful-- if you love the Seimitsu compact sticks you'd do well to have a fat stack of them imo. This all-in-one solution is way more user friendly though, and elegant in its own right.

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Hacked up this Kowal plate to let me use the LS-56 branded Omron switch board from the Dreamcast Virtual On sticks. Weird combo, the switches are reversed in orientation for no discernable reason. The plate effectively changes the actuation but the real purpose here was in order to prevent trimming the microswitch stopper tabs..
 
I made a set of these for @wonderbanana a while back he sent me a picture showing that the center part of the reducer had cracked in half and also delaminated/fallen off the rest of the restrictor
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I thought this was pretty bizarre and a one off but I looked in my CP recently and one of mine had delaminated too
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I still can't really see how this is happening as there are not really any unsupported forces to flex that part of the reducer. Fact of the matter is it's happened twice though so it needed sorting. The originals were printed in PLA and I've since printed some replacements using PETG in the hope that the layers fuse together a little better.

I thought that had solved it until I opened my CP earlier and found that one of these has failed also :cursing:

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I thought I would sort it for good this time. I have re-modelled the complete restrictor and reduced the gate by 1mm. This makes it perform the same as the previous version but it is now one solid piece.

The original restrictor has 3mm location spigots on the underside. I've modelled 2.7mm holes for M3x8mm CSK screws which perform the same job.

LS-56_Restrictor-M.jpg


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I've added this as a remix of my original design and can be downloaded from Printables.com [here].

I'll add this information to the original post too.
 
I'll print the new version this week and report back. I absolutely love the original plate and use it several hours a week! I probably have 45 hours on it at least and it's held up great. Thanks Franco!
 
I'll print the new version this week and report back. I absolutely love the original plate and use it several hours a week! I probably have 45 hours on it at least and it's held up great. Thanks Franco!

You clearly have a more gentle touch than Franco and I :thumbsup: Great little mod though, I love the thing!
 
printed and tested! great for micro dodging although you'll have a sense of the ship going "slower" since it can not achieve long distances quick.
 

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I was going to give these a shot in my vertical chewlix, is there a way for me to tell if this is the correct mount prior to ordering ? I currently have a LS-32 in the cabinet that came with it, but not sure about the mounting types these days.
Edit: Ordered, ill figure it out when it gets here lol
Would this plate\stick
https://focusattack.com/seimitsu-ls-56-01-sc-k-pcb-type-joystick-with-ms-plate/

work the same with what I have currently or do I need an adapter or difference stick version?
PXL_20250922_214110844.jpg
 
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Did they change the board on the LS 56 (I ordered, Seimitsu LS-56-01-SC-K (PCB Type) Joystick with MS Plate) ? Mine were different, ordered from Focus attack this week. The solder points are in different spots but I just dremeled some notches and everything fit fine after. First time using a short throw like this on a stick, went into Crimson Clover cold and put up one of my best scores while half paying attention, pretty drastic difference in the ability to micro dodge and react vs my LS-32.
PXL_20250926_194709689.jpgPXL_20250926_200846854.jpg
 
Did they change the board on the LS 56 (I ordered, Seimitsu LS-56-01-SC-K (PCB Type) Joystick with MS Plate) ? Mine were different, ordered from Focus attack this week. The solder points are in different spots but I just dremeled some notches and everything fit fine after. First time using a short throw like this on a stick, went into Crimson Clover cold and put up one of my best scores while half paying attention, pretty drastic difference in the ability to micro dodge and react vs my LS-32.
PXL_20250926_194709689.jpgPXL_20250926_200846854.jpg
They changed from Panasonic to Omron switches, for all their mechs, since the former is no longer manufactured. There's a new guide in use now, replacing the white one you show here. The new one works on both old and new PCBs.

Seimitsu-New-Guide.jpg
 
They changed from Panasonic to Omron switches, for all their mechs, since the former is no longer manufactured. There's a new guide in use now, replacing the white one you show here. The new one works on both old and new PCBs.

Seimitsu-New-Guide.jpg
White one was francos just notched to clear the new solder points, guess it's all good though! Heads up to anyone buying now that you will slightly need to modify the print.
 
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