BigBox E3D Printer Report

[Printed Props]

Had a good look at it today
and will be doing some work on it tomorrow as well.

most of the basic problems seem to have come for it not being constructed from the kit well.
wrong fittings and screws causing problems for the extruders and alignment.

the second extruder motor wont turn at the moment
this could be, a dead motor; bad wiring;  bad stepper board or a damaged main board.

but should have it printing on the main extruder by tomorrow :D

[Printed Props]

OK so not printing yet :s

have removed the second nozzle as it was interfering with the print (collision)

this can be replaced latter when were at least printing with one

both extruder motors are no longer turning (failed during a normal test print)

this leads me to believe there is either a board;stepper problem or bad wiring

we have (it seams) a new;spare controller board for it so poss credence to it being the board

when it was extruding it was "way" over extruding

so possibly not using the original stepper driver as i have flashed the original firmware and restored defaults

but this might also be down to the board;stepper drivers

finally (for now) i tried to run the printer in tethered mode but no luck

again i think this could be down to the board having a problem

(as firmware is in .hex and the program to push it is just a pusher not a validator)

So whats next?

ill be testing the stepper drivers against the x motor as its easy to do and should help with diagnosing the problem

i may be replacing the board with the spare (more of a hassle but suspected problem, but no reason not to do the stepper drivers first, due-diligence and all)

i would test the spare board separately but it needs a 12v to power on the board even for flashing

i wont be in till some time next week and wont be at Tuesday nights till at least in the new year
so if you have any questions you can contact me here :)

[Stanto]

Replace the board.

I'm happy to help flashing it if you need assistance.

[onlyha...@gmail.com]

I believe both of boards are wrecked.... you would have to check with Martyn but I seam to recall the first board was duff so a replacement was given FOC but that then died... I believe it turned out to be a cross wire somewhere but was never sorted.

I would advise checking before swapping the board.

P.s. i’m sure you wouldn’t without asking but please do not use any of the components from the large clear box on the bottom shelf. It’s the one with the rolls of abs in.

[Stanto]

No, both boards are not wrecked. The replacement arrived and then it sat on a shelf.

[samson B]

only half done theirs two boxes full of bits and if its not labelled clearly i no people have there eyes on one of them ( one without a lid) as i was in this afternoon. and if its ment as members only as in yours shurly it should be in members storage ?

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[Stanto]

The simple answer here is that unless someone knows the box is theirs, or they've been told it's okay to go through it, they shouldn't be touching it, or they should be asking first. If someone replies with 'don't know' then that doesn't mean it's available for people to mess about with.

One of those boxes is Andy's and goes along with the 3D printer that has been graciously to the hackspace for use while we sort the 3d printers.

The other is a box of spare parts for repairing the hackspace printers.

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[onlyha...@gmail.com]

Sorry guys for the confusion I will remove my stuff on Monday. It’s the box which has the 6 plus rolls of abs in a dhl box inside. There is numerous steppers etc also.

The only material people should be helping themselves to is products with a to hack sticker on, or has that gone out the window.

[samson B]

i think it was more people were eyeing it up for parts for our printers that are in need of them as while i understand where your coming from. as its with the 3d printers and not labelled clearly ( open plastic box ) its easy to think its parts donated to the hack space and as we have parts all over the place that people can use its an easy mistake to make now that we have more people looking after them. 

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[samson B]

only half done i no witch box you mean now james was saying its yours so they no about that one i was meaning the other box . and yep the hack stickers to my nolage iv never seen one

[Andy51055]

So we've had a working 3d printer all along? Why did no-one know about this?

[Stephen Rowley]

Can't say ever seen a Hack/do not hack stickers. 

[Stephen Rowley]

Maybe getting some rolls made wouldn't be a bad idea.

[Stanto]

No.

There is currently a 3D printer from Andy which those whom are au fait with how to use someone else's 3D printer responsibly, governed by Joe, are allowed to use. A hackspace member also made improvements to it so it could print nicely.

[Stanto]

The adage of "if it has green tape on it, then it's free to hack" has not been upheld or introduced to people on inductions for a long while.

[Stanto]

I'm sorry.

I introduced a box to near the 3D printers, when I was working on them with Joe on Thursday.

This appears to have caused confusion. It contains a number of spare parts for the 3D Printers, and I mistakenly thought that only those working on the 3D printers (James, Troy, Joe and I) or at least those who know of the box being there (Joe and I) would have a vested interest and would rummage through them. If other people aside from the four mentioned are rooting through that box, they perhaps shouldn't be, and even if I mentioned it on the google group I feel I have no reliable way of informing all members of its existence (as many members aren't part of the google group).

By the sounds of it, there's nothing to worry about either way in regards to the box, or Andy's box and there's unfortunately been some confusion as to their identities (which at least could/should be cleared up).

[J C]

Also I believe along with labling andy's printer, James has also labled andy's box of bits to make it clear its not for general use. About 80% of the space needs better labling any member can get involved in improving this. 

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[Printed Props]

sorry to do this but can i ask people keep general 3d printer discussions in a general 3d printer thread
im really struggling (dyslexic) to keep up will all the talk and this really was just some where to keep people informed on the progress of the BigBox
Thanks :s

have now spent 3 days with the BigBox and can confirm "Both" boards are3 not working
the one that's in the printer is slowly dying
and the "spare" is none responsive (comp dosent even see it) and is poss bricked so its over at the electrics bench near the lamp if anyone thinks it can be saved


as for the wiring i think Andy might be right and there well could be a problem there as two boards is a bit of a coincidence
so at some point ill get the multi-meter out and open up the BigBox

so as of yet its not working

we might need a new "Rumba" (i think thats its name) board or may be even a new power supply but that will com with further diagnosis

the good news is the stepper drivers and the stepper motors are fine

ill keep people informed as i figure things out

[Stanto]

Please keep the 3D printer stuff together. If it's left near the electronics bench it's likely going to wander/vanish. At the very least put it into the spares box that I supplied near the 3D printers with the other parts in it.

So it sounds like the one in the box was the dead one, and the replacement was fitted to the printer. From what Joe said it wasn't controlling an extruder, or that extruder stepper motor wasn't turning?

[Printed Props]

It turns out it's the board (shield part) as the stepper drivers work in the x,y or z but nothing on Boath extruders sockets.

Tested a spare motor from the open box and any stepper driver in the x,y or z socket will push input nothing in the E0 or E1 and the E2 isn't supported to do anything in this firmware

The E0 did work for a while but was massively Iver extruding then stoped completely

So I'd say the main controller board is dying.

Will have a good lock into the cabling to make sure there is no probblems there or with the power supply

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[Stanto]

Could it be that the stepper drivers used on the board are insufficient? Eg. on the mendelmax the stepper motors needed more current and so the potentiometers on the stepper drivers had to be adjusted.

[Printed Props]

Have tried that and got no response at all
Yet they still worked for x,y and z

[Stanto]

Extruders won't move while the temperature is detected to be below 170degC usually to prevent cold extrusion (by default in marlin firmware)

Have you ensured that the temperature is up before attempting to move the extruder steppers?

[Printed Props]

Had them Boath at 220 to be sure

[Stanto]

I've replaced the stepper drivers and have checked that it can move and try to print.

Current problems are:

- axis that's 'front to back' is squished

- z height is wrong and needs calibrating. Sometimes this smacks into the print head, currently it's too close to the print head to make a sensible print. Head is not blocked as it will extrude. This could also be cura settings.

- We could do with a cura profile. 

[Printed Props]

OK hade a peek at the bigbox
It looks like some one ran the 24v power supply though the 12v mega board :s
So no progress and need to see if any of the mega, shield or steppers are salvageable.
But the hole setup won't power on

Might ask some electric savy members to show me how to test these so I can do testing in the future