Flashing Play firmware

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Flashing Play firmware

Postby jradford » 2017-Jan-Thu-23-Jan

I've tried following the guide and downloading the pbFU firmware updater for the Mac, after running it says
"downloading firmware" and never completes.

Also tried just copying the .hex file onto the program, and it doesnt find the printer (with boot jumper), take
the boot jumper off, reboot and cura sees it fine.

Any idea on how I can get firmware to flash on my play with OS X?

Thanks..
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Flashing Play firmware

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Re: Flashing Play firmware

Postby RetireeJay » 2017-Jan-Fri-08-Jan

This may or may not be the problem, but when you put the programming jumper on, you then have to press the Reset button on the board. It's not enough to power down and power up with the jumper in place; the ONLY way to get into programming mode it to have the jumper on AND then briefly press the Reset button.

I have no idea how to work with Mac's, but in the Wiki, PxT has a writeup on how to do it. (click on the red-white-beige button next to the "search..." box).
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Printrbot Plus operational January 2013
Brass threaded rods (5/16" X 18) & nuts for Z axis
GT2 belts & pulleys
Cable chain to reduce probability of fatigue failure in wires
E3D V5 Hot End, 0.4mm nozzle, also 0.8 and 0.25 in use occasionally
PB fan mount + 40mm fan -- using printed mount adapter, not the E3D supplied fan
Injection molded extruder gears
Optical Z "endstop" (custom designed and built)
Have used many pounds of T-Glase filament. Now also doing some work with Ninjaflex SemiFlex
Print on glass with Scotch Craft Stick or other glue stick
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Re: Flashing Play firmware

Postby jradford » 2017-Jan-Fri-09-Jan

Thanks Jay - I actually had a windows laptop that I tried with the AMTEL Flip software and that seemed to work.

But here is my second problem now, which I had hoped would be fixed by flashing the firmware, but was not.

When I turn on the Play, the hotend immediately starts heating up, sometimes to 190, sometimes to the max
it will go. I try setting it off or just setting it to 0 degrees with the M104 command, but it wont honor that
and keeps at the same 190-max temp.

I make sure to reset all the defaults (M502/M500) after flashing it. Any idea what could be causing this?
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Re: Flashing Play firmware

Postby RetireeJay » 2017-Jan-Fri-10-Jan

There are two big power MOSFET transistors on the board, one for controlling the heated bed and one for controlling the hot end. These transistors are adjacent to the corresponding connectors on the board. The transistors have metal tab heat sinks that stick up above the molded plastic case. If these tabs are touching each other, strange things can happen to temperature control. It's a simple matter to bend one of the transistors a bit to the left and one a bit to the right so the tabs don't touch.

If that's not the problem, there are other things we can check. As a safety matter, there should be no heat coming on until you ask it to come on!
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Printrbot Plus operational January 2013
Brass threaded rods (5/16" X 18) & nuts for Z axis
GT2 belts & pulleys
Cable chain to reduce probability of fatigue failure in wires
E3D V5 Hot End, 0.4mm nozzle, also 0.8 and 0.25 in use occasionally
PB fan mount + 40mm fan -- using printed mount adapter, not the E3D supplied fan
Injection molded extruder gears
Optical Z "endstop" (custom designed and built)
Have used many pounds of T-Glase filament. Now also doing some work with Ninjaflex SemiFlex
Print on glass with Scotch Craft Stick or other glue stick
User avatar
RetireeJay
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Re: Flashing Play firmware

Postby Mooselake » 2017-Jan-Fri-10-Jan

Is this a new device? Have you opened a ticket with Printrbot about it? The warranty is pretty short.

An always on extruder is a safety defect if it came that way, plus (new or not) it can burn your house down if you leave it unattended.

Kirk
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Modified KickStarter Classic Plus 7/2012
KS Thingybot Delta Pro 10/31/16
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Re: Flashing Play firmware

Postby jradford » 2017-Jan-Fri-13-Jan

Jay/KIrk

Thanks for the reply. This is not a new play, it's at least a year old.

As an update, I had a spare printerboard so I swapped it out, and it was doing the same thing. Turn it on and it
shoots up temp wise on it's own.

So I took apart the whole extruder assembly (unscrewing it from the block), then re-attached
it all.. And now it's working fine.

Could it have been a spotty connection on one of the extruder wires/connectors?

Worries me that if there is a bad connection, it will do that.
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Re: Flashing Play firmware

Postby RetireeJay » 2017-Jan-Fri-16-Jan

One of the wires going to the heater is at +12V all the time. The other wire is switched to ground as needed by the MOSFET transistor. So if you had a short circuit from the "switched" side of the heater to ground, that would bypass the MOSFET and keep heat on all the time. Check to make sure your wires have good insulation. This is a bit tricky right near the heater because ordinary PVC insulation doesn't work there and they use a different type of insulation.
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Printrbot Plus operational January 2013
Brass threaded rods (5/16" X 18) & nuts for Z axis
GT2 belts & pulleys
Cable chain to reduce probability of fatigue failure in wires
E3D V5 Hot End, 0.4mm nozzle, also 0.8 and 0.25 in use occasionally
PB fan mount + 40mm fan -- using printed mount adapter, not the E3D supplied fan
Injection molded extruder gears
Optical Z "endstop" (custom designed and built)
Have used many pounds of T-Glase filament. Now also doing some work with Ninjaflex SemiFlex
Print on glass with Scotch Craft Stick or other glue stick
User avatar
RetireeJay
My next printer is...
 
Posts: 4637
Joined: 2013-Jan-Wed-13-Jan
Location: Greenville, SC
Reputation: 476


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