One more time (I’ll get it right eventually).
Originally shared by Rojer Wisner
This is the current progress of my first 3D printer, the One-Up from QU-BD. as you can see, still no X-Belt. I also have to yet applied any power. I was wondering if this would support a VIKI controller.
Also notice the Y-Belt. It seems a tad bit snug on its inside track. I’m not sure how well I’ll be able to adjust for that without taking the whole thing apart. I’m hoping that I will have room inside of my modified belt clamps to compensate.
Awesome project.
Thank you. It has been an experience.
Something I would do if you’ve got soldering skills: Reflow the solder on the 2 FETs, so you get a small amount of solder flowing through to the top pads. the drive FETs (specifically for the heated bed) pass a LOT of current, and the better the contact there is between the pins on the FET and the pads below them, the less resistance.
Also: Make sure you have a fan (eg: 40-60mm) pointing at your electronics. The FETs get warm/hot, and also the stepper drivers. Keeping them all cool means it’s more efficient, plus stops the stepper driver temp limiter cutting in during the middle of the print.
PS: Be careful of metal getting around the back of that PCB and shorting stuff out.
As far as the bottom of the board, I have already taken a measure to help. I mounted a hard plastic frame that doesn’t interfere with any of the soldered joints.
As for my soldering skills, it’s not like bike riding. The last of my pro skills were used back in the 80’s. I think I need some practice before I hit my own wallet with an overheated component.
And I do have a couple of spare fans but I’ll have to figure out a shroud or mount I guess. Thanks for the advice @Stuart_Young .
Viki does work with printrboard per the viki kickstarter page.
Cool. It may well be worth it.
@Rojer_Wisner No problem. I used a piece of acrylic plastic for a fan bracket on one machine. Heated it up slightly (hot air gun) and bent it over the edge of a piece of wood till it was the right shape. Still had to put a hole in it for the fan (did that first) but it holds it nice and secure, and the air blows where I want it. 
This design is just as attractive as an i3, any recommendations one way or the other?
@Rick_Blake The QU-BD One-Up is more comparable to the Printrbot Simple than the i3. The i3 has a much larger print volume. It’s a proven design, with countless variations. The One-Up on the other hand seems to be very affordable.
Aside from the viki not being compatible, as @Eclsnowman mentioned, start out just getting the thing working, then add the fancy stuff. I was a Kickstarter baker of the viki, and tried hooking it up to a sang board, as it claimed to be compatible to. From the frustration of getting the thing wired correctly and software coded correctly, I accidentally connected out to 12v man’s instead of 5v. The pins are right next to each other and are very hard to see on my printer. Needless to say, the viki makes an expensive smoke machine. But lesson learned, take it slow, for your sanity and your wallets sake. Good luck
@Eric_Moy . Thank you. I am going about this rather slow at the moment. But that could have saved me some frustration had I gone on impulse. I don’t have a great space to work on the machine and it started to sprinkle so I put it up and watched the SB instead. The commercials were as great this year. I 'll get back to it and fix y and read up on the forums more to see what direction I should go from here. Thank again.
