DIY tablet computer, maybe.

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S. Heslop:

--- Quote from: nrml on August 08, 2018, 05:05:09 PM ---Nice work. This is certainly a very unique project. I've never seen anything quite like this and I mean that in a good way.

Judicious use of guitar shielding foil should sort out interference problems.
How about arctic silver thermal epoxy for building the heat sink. It wont be as efficient as a soldered joint but is likely to be far less of a hassle to put together.

--- End quote ---

That's not a bad idea at all. I've also seen heatsinks where the heat pipes are flat against the CPU with the plate holding them together on top, so maybe the loss in efficiency won't be a huge deal.

Wish I could tell if it was the CPU or motherboard that's at fault, if its even a fault at all. I'm considering putting that CPU inside my desktop since it'd be compatible but I kinda feel this computer is held together at this point by the dust caking the boards. I think Windows triggers the software protection if you switch CPUs out too but I only need to get as far as the POST.

S. Heslop:
I'm glad I did that even though it was terrifying. I thought i'd bent some pins on my CPU socket but i've got a foggy memory of thinking that when I first assembled the PC too - they just look weird.

So the CPU I bought is junk. Perhaps because it was sent in a paper bag but it might've been toast before that. I'll have to see if this place will accept it back without a fuss. What actually are my rights on this matter. I've never really pursued returning faulty items before but this one has me genuinely annoyed.

Thinking about bent motherboard pins. The first PC I ever tried to build I got sold a duff motherboard with a bent CPU socket pin. I was 13 or something at the time though so I couldn't really argue my point in returning it, and the guy insisted that I must've tried put the CPU in sideways or upside down or something. I got got.

S. Heslop:
12 volt AC adapter arrived today. I'm glad 12 volt adapters seem to be fairly standard in connector size.

I got so excited I forgot how to draw.

It's a TN display so the viewing angle isn't great.

You can also see where the top isn't entirely flat and the tape hasn't stuck. I managed to get some swarf into the gap too when drilling a dimple to clear a screw and it's now a permanent feature. Other problems are a fair bit of latency which could be from the controller board. I suspected something like that might happen.

And finally the cursor is... perfectly aligned. I think i'd like it offset a bit to the upper left of the pen nib to compensate for parallax and so the pen isn't actually obscuring it. The Wacom drivers are surprisingly sparse in features so i'd probably need to do that through the waxbee config thing for the microcontroller, which has some baffling options.

It's weird but i've gotten fairly used to my non display pen tablet and i'd consider not having your hand blocking the image a huge advantage. I actually find that a bit of a hassle when drawing on paper too, not that I do it alot.

Seems like alotta complaints. I'm really excited it works but there's still alot to fuss with to get it finished. I didn't ever expect it to replace my regular tablet though and so far it seems ideal for what I want it for - inking. Despite the screen latency the pen is very responsive with a good pressure ramp (or whatever you'd call it) and no jitter. Most of the wobbles in that doodle were from my hand sticking to the glass. You can actually buy cotton gloves for your ring and little finger to prevent that. They're often coupled with the commercial pen displays.

awemawson:
:thumbup: :thumbup: :thumbup:

krv3000:
nice

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