> On Jul 11, 11:39 pm, chris bate <thejollygrimrea...@gmail.com> wrote:
> > I'll see if i can pop in, i want to join up anyway ,

> > I'm pulling off the sanguinololu and reverting back to the old setup with
> > an arduino uno and the industrial stepper drivers and go back to running
> > teacup (which is better anyway because it's bullet proof and way way way
> > more reliable)

> > this time i'm putting in optical isolation and i've also got a 4 way
> relay
> > module for the fans heatbed extruder and future automated build platform,
> > so i shouldn't have any problems

> > I'm going to contact the company i got the sanguinololu from in the first
> > place and see if i can get my money back on it and the pololus, failing
> > that I'll give it to somone

> > On Wed, Jul 11, 2012 at 11:04 PM, buzz <davidb...@gmail.com> wrote:
> > > Bring it into the space on a Tuesday evening, and someone will have a
> look
> > > at it for you.   :-)

> > > Buzz.

> > > On 11 July 2012 22:57, chris bate <thejollygrimrea...@gmail.com>
> wrote:

> > >> i've done the usb cable thing twice now, both cables same result tried
> > >> shifting the ferrite core

> > >> with the mosfets, basically when the temperature control was working
> the
> > >> bed could sit there trying to heat up for over an hour and never
> actaully
> > >> reach 100 degrees
> > >> the extruder never made it past 150 degrees

> > >> so at the moment i don't run any temperature control and so far it
> sits
> > >> at a nice and stable 230degrees

> > >> different firmware....... well ...  tried:
> > >> marlin - couldn't even connect to it through replicatorg or printrun
> > >> teacup - would connect but not much else

> > >> currently it's running sprinter

> > >> if i order it online it won't get here for a week maybe a week and a
> half

> > >> I'm more pissed off at it ATM it cost me nearly $200 for the board
> and so
> > >> far nothing but trouble and nearly a kilo of wasted plastic

> > >> On Wed, Jul 11, 2012 at 10:24 PM, Lemming . <inert...@gmail.com>
> wrote:

> > >>> On 11 July 2012 22:13, chris bate <thejollygrimrea...@gmail.com>
> wrote:

> > >>>> I hate this board....... surely somone else has had similar problems
> > >>>> with it

> > >>>> so far:

> > >>>> -mosfets cannot provide enough power to extruder or bed

> > >>> What MoSFET's is it using? Enough to control the bed I can see,
> enough
> > >>> to control the extruder is unlikely as they draw comparatively
> little power.

> > >>> -temperature control has seemingly perminantly stopped working don't
> > >>>> know why (the ADC channels died) (cannot possibly be a short, i
> didn't have
> > >>>> a thermistor in there when it happened)

> > >>> Have you tried flashing different firmware onto it? Shorting the pin
> to
> > >>> ground with a wire while monitoring it? Shorting a pin on an ATmega
> > >>> normally doesn't kill it unless you short it to a voltage
> substantially
> > >>> higher than what it can handle.

> > >>>> -now my z axis stops working mid print until i pull the power and
> usb
> > >>>> plug out and reset everything.....

> > >>> A number of people have had similar problems because of power issues,
> > >>> and/or dodgy USB

> > >>>> I have the usb cable with the ferrite core on it the cable is
> shielded
> > >>>> and doesn't go anywhere near any power wiring or stepper motors, i
> have the
> > >>>> limit switches disabled, i can't work this out

> > >>> Try using a different USB cable, the cable you have may look like
> > >>> platinum plated goodness, but it may have crappy internal
> connections and
> > >>> thin wires internally that are adversely affecting the signals.

> > >>>> the only thing i can think of is the pololu is on the way out...
> great
> > >>>> that would be number 4 now

> > >>>> As has been mentioned on here, Pololu's are generally very
> reliable, if
> > >>> they are dying then there is likely something else causing them to
> die.

> > >>> has anyone got an arduino uno that lives near toowoomba or warwick
> that
> > >>>> will part with it for cash,beer?

> > >>> If you can buy beer, you can get a debit card and order one online.
> If
> > >>> you order one from somewhere like littlebird you will normally have
> it
> > >>> within a day or two.

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