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Sanwa button nut diameter size?

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DeLuSioNal29:
Hi all!

So I'm in the process of building my control panel for a 2 player vertical shmup with 3 buttons each.  I'm going to use Sanwa's for the joys and buttons, but I need some info I was hoping you could all help with.

My question:  Does anyone know the diameter size of the plastic washer that screws in the buttons?  I am purchasing both OBSN30 amd OBSN24 buttons.  The reason I need to know this is explained below.



I have a template I am using and I plan to drill a hole in the middle of where each button would go.  For the 30mm buttons, I plan to drill bigger holes partially through on the back of the control panel where each button would go with a Forstner bit that is bigger than 30mm to act as a router for the button's washer.  Then I can simply flip it over and drill the 30mm hole from the top all the way through.  The hole I drilled in the beginning will act as a guide for my bits.  I will do the same for the 24mm buttons.

So I'm in the process of purchasing drill bits for this project... I could always buy a set of them, but figured someone may know the measurements so that I only have to buy 4 bits total.

Thanks in advance all!

DeLuSioNaL29

SammyWI:
Lizard Lick has dimensions on their site.  They show the OBSN30 nut as 36 mm dia and the OBSN24 nut as 29.5 mm dia. 

DeLuSioNal29:
Anyone know what size drill bit would cover that?  Now come to think of it, I'd probably want to get something that will allow the pushbutton nut wrench to clear the sides of the wood.



Any ideas?

D

Franco B:
1.5" bit would give you about 1mm (0.040") clearance either side.

By the way, I don't think that type of button wrench works on Sanwa nuts.

If you are using a six button sega layout I can make you a routing template to route the relief if you wanted one, no charge.

Just out of interest, have you tried Seimitsu buttons?

DeLuSioNal29:
So is the 1.5" for the 30mm button.  What about the 24mm one?

I'll have to wait and see about the button wrench, to see if it really fits or not.  I always assumed the other side would fit Japanese buttons.  According to Lizardlick, "Happ part # 53-8002-00, manufactured in Spain by IL. ...  This is also listed in the Sanwa catalog as part # K-OBSA, but doesn't really work that well with Sanwa pushbuttons... "

Concerning the button choice:  I figured I'd go with Sanwa, since my joys were Sanwas.  Also, don't really like the look of the flat button on the Seimitsu buttons (I originally wanted to go with snap in buttons).

Also, I based my decision on this great info:  http://shoryuken.com/f177/sanwa-seimitsu-faq-118289/

Will that template work with a 3 button layout?  I'm using a Sega layout, but only with the top row.  How exactly does that template work?  Is it something that I trace onto the wood and then cut out?

Thanks everyone with their help with all this.  :)

D

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