New Quad Project... INPUT VERY WELCOME!

:frowning:

Sure sounds like a short to me…

You probably have already done it, but If it were me, I would get out my multimeter and start measuring things. Like without anything plugged into the board including battery, what is the resistance between the Plus and Minus pins of the battery terminal. Should be very high. Likewise check where your voltage regulator connects to and check that to ground…

Kurt

Thanks Kurt,

I’ll take a closer look when I get home. Hopefully I can find something. Regardless, I think I’m going to mill out another board, there are some traces on it that, in hindsight, should have been more robust.

I appreciate the help.

It’s been way too long since I’ve been back on here.

I fixed my controller board. I took Kurts advice and started measuring like crazy, couldn’t find a short. I milled out another board, installed the components and put a new propeller on it. It turns out there was never a short on the board, but something internal to the propeller. The prop would heat up almost instantly and that apparently burned out my xbee, too.

I’ve got a new xbee but I haven’t had a chance to play around yet. The holidays were crazy, I’m travelling a lot for work, and I’m currently working on another project for my brother. Hopefully I’ll be able to get back into it in the coming weeks. Still anxious to get this thing walking.

On the plus side. My brother designed and built a 3d printer for me. Based on a design by Brook Drumm but made with sturdier materials and with a 160x160x160mm build envelope. I’m going to pick it up on Saturday, pretty excited.

As payment, I’m designing and making him a pcb to run a micro servo quad. I’m hoping to keep the package under 60x60mm.
Features I’m planning:
-Parallax Propeller based
-18 powered servo connections (1.5A-5v supply for each 3 servo group, 500mA per servo)
Can do a 4DoF quad or 3DoF Hex
-4 Analog inputs
-8 digital i/o
-256k eeprom
-XBee

Oh man… i like it…
Is it a design of yours cut on you cnc…?

Pst… i want to build one… can i ?

Good to see you returning to us. Nice little printer. I like that.

Eric… you have a 3d printer!!

You know i am in love with those things… :wink:
I like mechanics things.

I don’t think he’d have a problem with that. I’ll see if he posted the design on github or something.

Wouhou…
I would make one for Jonny… :wink:
Do you have an estimate bom ?

Hmmm, I might not be able to get details until Saturday.

From what I know, it’s 1/8in G10 and assorted alluminum standoffs for the main structure, 8mm drill rod for the rails, and several printed parts. I’m not sure which driver board he went with.

Don’t quote me on this, but I think the materials came out to be less than $250.

Perfect Marcham…!
It’s not a rush anyway, but i have see a lot of design in 3D printer and like that one… :wink:
How stiff is it ?

I haven’t got my hands on it yet but he said it was surprisingly sturdy. Much more rigid than he expected. I’ll give more details this weekend.

I’m super excited for Saturday. I can’t wait to start playing around with it.

Hi Marcham,

Well, you win the weekly Make-An-Idiot-Out-Of-RoboTed award for that picture of your soon to arrive 3D Printer. I kept looking and looking at it, marvelling at how massive and complicated it was…
…until I realized that the four large repeated sections at its rear were the burners on a stove!

It’s not nice to do things like that to people with aging eyesight. 8)

I can see though why you’re so excited to get your hands on it. I really wish I could find a reasonably priced one to make limited numbers of repetitive parts for large-scale railroad projects. I have some things in mind that would combine railroading with programmed servos like we use here.

Please keep us informed about how you fare with it.

hi

love the printer been looking for a cheap diy kit is all the parts cut out of lexan or is the some 3d parts

P.S. i would love the designs if it isn’t a problem.

:open_mouth: :mrgreen:

this jagar, and I was wondering if anyone could tell me if it is possible to use a sheild to attach to my computer and transmit to an explorer on my robot instead of having the sheild on the manipulator and the explorer on the computer, to save weight. can you say either way, i was not sure where to put this ad so i put where seem to be prersent date the note was used. jmjr4 jagar

jagar4 - please start a new thread if it’s not related to the topic of this thread. Final warning.

My Bro has been trying to post the files here but has been having problems. Any ideas why?

Does he have an account? Was it just created?
What file types? Only some file types are allowed. For others you need to put them in zip files. also there is probably a maximum size that can be posted.

Kurt

He’s had an account for over a year, and he’s been posting as a .rar. Does rar have different permissions than .zip?