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31  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 [K-Jintiq clone] on: January 02, 2013, 01:49:02 PM
Exactly. The golden stuff is the sticky tape on the middle panel which afterwards keeps the top surface in place.

I tried to explain the grounding of the pcb's in post #30. I'm just not sure if it will work out that way for you. Is tin conductive?
32  Screen Tablet malarky / Build Logs / Re: The Raz tab on: January 02, 2013, 12:13:43 PM
Ah, now I got it.

Edit: Tin sounds good though RF shielding might turn into science, wish you luck.
33  Screen Tablet malarky / Build Logs / Re: The Raz tab on: January 02, 2013, 12:01:49 PM
LOL, enjoy your meal  Grin Great finding if it works.

Well, I think I would not make the closing permanent. If it should come to flaws afterwards, you won't be able to open it up again. Your decision of course.

Excuse me about the pen, thought you have to wait some time to get it recognized after pointing it back? This should happen immediately.

just too lazy to do that Cheesy

I totally understand Wink
34  Screen Tablet malarky / Build Logs / Re: The Raz tab on: January 02, 2013, 10:44:43 AM
trying to take off the paint from the tablet was a disaster.

Arrgh, I know what you're talking about, this was really annoying. I found a forum in my native language where the topic was how to polish clear covers of old record players. So I polished it as some of them did with a set of Micro-Mesh-Pads and some polishing paste.

There are still some micro scratches left that I don't care for as they get completely invisible once the screen is turned on.

While I was almost polishing my arm off, I also thought about to change it into something different. Making outcuts for the keys is rather simple but I guess you won't be able to find something with a bended bottom side and that 'rim' around it. Once it's taped back together that 'rim' gives the whole thing some kind of stabilisation I don't want to miss.

Unfortunally I have no idea about the flickering, mine doesn't do so. The ccfl tube gets warm but not dramatically even after hours, so I left it without any heat shielding in my case. I also haven't any issues with the tablet recognizing the pen, sounds strange somehow.
35  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 18, 2012, 10:25:50 AM
That's right, there are so many details biasing the whole RF thing like selected controllers/lcd, material, thickness, position, combination, etc. it's indeed a big game of chance to get them togher harmoniously, if only because a lack of tools to measure it precisely. As you said it's really a bet.

I'd never dare to build something that hasn't been prooved as at least possibly working before, at the same time I have great respect for everyone that doesn't feel like me on that.
36  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 15, 2012, 09:49:16 AM
Yes, I was reading your thread and hope everything will work out well. Having a school that can build that special alu-housing for you is somewhat cool.
37  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 14, 2012, 10:09:36 AM
Great, thanks for the note!
38  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 14, 2012, 09:34:17 AM
Here's some other links for the button on Am*zon and Eb*y plus on G**gle's shopping tab. Seems these are really not too easy to find outside Germany unless 'membrane button/swich' is indeed not the right term to search for..
39  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 13, 2012, 07:14:49 PM
Thanks for the kind words! With Teko boxes (<-click) I mean the steel casings where the ccfl- and lcd controller are placed into. They do a great job on shielding the pcb's.
40  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 13, 2012, 09:39:25 AM
Thank you guys! I found the button over here by chance. I'm not entirely sure if 'membrane button' is the right term but I guess you should find them in any better assorted electronics store. The german term is 'Folientaster' if that helps for searching.

Once more about the jitter, like Hieron and Karreltje already experienced: After I changed the ccfl tube, I first forgot to reconnect its shield to the teko box again. That immediately led to very bad jitter and random clicks all over the screen, no matter what the frequency was set to. So If anyone is using the same set of parts, grounding the ccfl cable's shielding is really mandatory.

I also recognized the Macbook has not to be connected to the mains (real ground) to keep jitter and random clicks away. So probably the screen's ground is the only crucial one in that case  Huh

___

Again for starters: Imagine the screen's ground starts at the inner wire of the LVDS' power plug and then connects from the small 'ground aeras' of the controller pcb's to the teko boxes and from there to the ccfl shield.

Make sure not to accidentally connect any other part to the teko boxes! These 'ground aeras' are located around the pcb's mounting holes. You can check any wanted (and unwanted) connection by using a multimeter. I've connected the Teko boxes to each other too, by using the same sticky coppertape like for the shielding.

Edit:
[attachment=1]Teko steel case, inside insulated (their covers too). The shown screw-nuts will keep the cases and pcb's in place and provide their ground connection at the same time.
In the picture the pcb's would be the next thing to put on, and finally just another set of screw-nuts to fix them.

[attachment=2]The pcb's 'ground aeras'. These from the ccfl inverter are single sided, I used an extra ringwasher to enlarge the contact aera.

[attachment=3]The whole set up. The battery just means the 12V/4A could be provided from a different power source, too.
41  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 13, 2012, 01:55:09 AM
Done, I can hardly believe it. I let some final pictures do the talking..


[attachment=6]Snapshot of the new sticky tape pattern. Slightly overdone I guess Wink

[attachment=1]In my first build I've never used any of the knobs but the power swich, so I changed that one into a self-sticky membrane button and sticked it beside the bottom cover.

[attachment=2]The bottom cover fixed with transparent acrylic. Actually you can't glue pp and other plastics with it, don't know yet if it will stay in place but it looks promising so far.

[attachment=3]Cut outs

[attachment=4]Sideview

[attachment=5]Done. Yay!! Time to clean up the mess outside the pictures Wink







42  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 11, 2012, 05:08:42 PM
I'm not sure, I was just following someone else's build but of course it would be a pleasure to help someone out if I can. I believe figuring out which certain parts are working well with each other and how or why is in fact the hardest part of the entire build unless you're just lucky. I really adore your amount of patience and still hope you can find the right weapons to pass your build's deamons or at least to make them visible somehow.
43  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 11, 2012, 11:58:43 AM
Thanks for the kind words, but to be honest - most likely I never would have tried it without your advice. Roll Eyes

Well, the top surface is still loose because I couldn't get my hands off the pen last night. This thing is so much improvement compared to my first build, there's absolute zero jitter, resolution and viewing angle are great and it seems to have less input lag, too. Really, for me this feeling right now is so much worth all the effort and expenses.


[attachment=1]I know my drawing skills are in need of further improvement but that guy had to leave my head for now Wink
44  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 10, 2012, 09:42:28 PM
Aerendraca, your suggestion has been perfectly right, thanks man! The Intuos is working as if nothig ever happened  Grin

That silver stuff is almost like water and I couldn't keep it from getting under the tape, so I painted one big spot and separated it afterwards with the tip of an exacto blade. Not beautiful at all but it works. Everything is looking huge on the pictures but in fact this has been way too small for me to keep it neat.

[attachment=1]Deep cut over two Antenna traces. The small one isn't separated.

[attachment=2]Protection stuff abraded

[attachment=3]Drop of glue to fill up the gap

[attachment=4]Glue abraded

[attachment=5]Silver drop, separated afterwards with an exacto blade. Ugly but working Wink

45  Screen Tablet malarky / Build Logs / Re: Cint®iq 2.0 on: December 08, 2012, 05:55:26 PM
Oh, I'm sorry. I mean you would do it the way that broken conductive traces on pcb's typically being fixed. This will make the broken antennas on the wacom pcb being conductive again, yet I'm not sure if it may influence their 'inductive field', or how that is called. Next week the silver stuff should arrive, I'll try my very best.

In the meantime I changed the tablet boards and the build is thereby working fine again. Next I'm going to paint the upper surface and stick it all together.
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