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Naomi Projects - Update : PCB Holder

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Franco B:

Apologies, I spelt it wrong its Araldite.  :-[

There is some information about Araldite [here]

I use [Araldite Rapid] as its what I have at work.

Its a two part adhesive. You squeeze out equal amounts of the resin and the hardener and mix is together for 30 seconds or so. You then just apply it to the surfaces to be joined, put them together and leave to set.

Its quite runny before it starts to set so you want to make sure the pieces are held/supported whilst it starts to dry. The rapid Araldite hardens within about an hour.

If the surfaces that you want to bond are smooth you need to roughen them to give the adhesive a key to stick to.

zorg:

thanks for the highlight, I would be affraid that gluing this kind of arts will not resist extensive usage (I mean playing of course).

aren't you affraid that it will be to much stress on the fixation that may break down the assembly ?

Franco B:

Your welcome zorg.

I don't have any concerns with the strength of the bond. The glue is very strong and the joysticks would be more likely to fail before the plates come unstuck through impact or compression.

Quick update whilst I'm here.

Thanks to a lot of help of from the guys over at arcadeotaku I have the Jamma/MVS complete.



I used 12 core 16/0.2 cable for the joystick/button signal wires, single core 16/0.2 for the other signal wires and 24/0.2 single core for the power ground cables.

The player one/two D buttons are connected pins to Ac and 25 and the game select button (select down) is connected to Ad.

The other end of the 12 core cable is connected to the AMP plug receptacles which will be housed in the I/O plate under the CP.

To crimp the pins on I borrowed a Hozan P-706 crimp tool from a friend. I have one on order from akihabarashop but I borrowed one as I need to get this wired up fast.

   

The wires are stripped, inserted into the pins and then crimped on the wire and on the cable. The pins then click into position in the AMP plugs.



I have wired some of these up before just using a pair of pliers to crimp the pins but using this tool makes them much stronger and neater. As always, the right tool for the job....

I'm currently wiring up the CP/LEDs and hope to have that finished tonight. I'm also hoping to get the marquee graphic printed over the next couple of days.

HaRuMaN:

I always solder those amp pins...

Franco B:

Crimp and solder or just solder?

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