My First Portable

C4RB0

Member
Hi there

Even though I'm almost finished with my first portable, I'm going to start a worklog today. There are still a few things left to do (add batteries, replace original controller board with RDCs miNi64 and build an external box to connect additional controllers and for video output), but the portable is in a usable state and I already finished Super Mario 64 on it (yes, I got all 120 stars :awesome:).

Specs:
- GBA carry case
- 4.3 inch screen
- 2600mAh battery
- RDC miNi64 controller board
- Expansion pack
- External box with video output and four controller ports

Everyone's favourite: the GBA carry case :lol:
Yky2sUql.jpg


Cut the screenhole:
KcQP40gl.jpg


It's always fun to do mockups. I'm using the buttons of a fake Wii U Pro controller and the d-pad of a Nintendo DS Lite (for the C buttons):
y78o51gl.jpg


Used filler to get a flat back:
BWbEw1Wl.jpg


This is how I mounted the buttons. I tried to use screws whenever possible to make it easier to repair:
jVCbftwl.jpg


And here's a picture of the front with the buttons. Yes, you guessed it, the portable is going to be white. :p Unfortunately, I forgot to take pictures directly after painting the case:
MWdn81Ml.jpg


Now to the electronics part:
yVVhIsZl.jpg


The N64 inside the case (I'm going to show more pictures of the electronics when I'm finished):
igsTuv7l.jpg


And it closes perfectly:
LwT0Bhol.jpg


And it works perfectly (with an external power supply):
meLS3qvl.jpg


Painting was a real pain and it took much more time than anticipated to get a nice finish. When i put the portable together the paint cracked around some of the holes (luckily the paint didn't crack on the front, so it's a little harder to see) and I still need to fix this. Also, the part of the back where to front half is connected broke off when I drilled the button holes, but I was able to fix with epoxy glue. This is a weakness of this case (at least if you have the cartridge sticking out of the top of the case, as I have).

I'm still waiting for some parts that I need to finish the portable. As soon as I receive them I'm going to update this worklog.
 
That looks incredibly clean and nice! Great work!

What did you use for heatsinks and batteries? It looks like you have tons of space for batteries for a nice long session of playing.
 
Thank you.

The pictures above are a little deceptive. I don't have any space left on the left side because the thumbstick takes up most of the space.

4FEgLoal.jpg


LBJyHThl.jpg


I'm going to use two Samsung ICR18650 (2600mAh) but I may upgrade to two Panasonic NCR18650B (3400mAh) if they don't last long enough.

I use aluminum heatsinks for the cpu, gpu and onboard ram and smaller copper heatsinks for the expansion pak. The larger aluminium heatsinks have exactly the same size as the chips on the board.

It bought them quite some time ago but I think these are the right ones:
http://www.ebay.com/itm/5-Pcs-Aluminium ... 43ca6e0461
http://www.ebay.com/itm/20-Stuck-VGA-RA ... 1c391029ef
 
Ahh, okay. I guess it looked like there was more depth to the top of the case for it. Looks good anyways tho.

Nice work.
 
That is very nice!! I am just starting my own pN64..

Do you recommend aluminum heat sinks over copper for the chips?

Can you link the screen you used? I am trying to find a 5" or 6.2" screen but cannot find one that will run off 7.4v battery!! Ughhh lol. Any help would be appreciated.

Also approx how many hours do you get out of the battery before you must recharge?
 
Thank you.

The heat transfer of copper is better than the heat transfer of aluminium. I bought aluminium heat sinks because I couldn't find copper heat sinks in the right size.

I bought the screen on ebay for 16$. Unfortunately, the seller doesn't sell it anymore. If you can't find anything that runs on 7.4v, you can use a step-up voltage regulator for the screen:
https://www.pololu.com/product/2117

I haven't tried the step-up voltage regulator, maybe you should let someone (who is more experienced) confirm that it works.

I don't know how long the batteries last because I haven't installed them yet. Theoretically, they should last 1.5 to 2 hours.
 
Lionel,

Most of the eBay TFT backup screens will work off of 7.4v. They do say 12v in the description. You may wanna check out Amazon.com. I used this 4.3 inch monitor (I know you're looking for a 5-6" screen but they all say 12v):

http://www.amazon.com/gp/product/B006MP ... UTF8&psc=1


But they also have these for a decent price (~$25):
http://www.amazon.com/gp/product/B00DZI ... UTF8&psc=1


I used the 4.3" in my Green GobliN64 portable using a 7.4v battery-http://forums.modretro.com/viewtopic.php?f=3&t=13613
 
This is really beautiful work. What did you use for screw posts? I can't ever find any locally.
 
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