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Thank you for this explanation. Not quite as comfortable as before but it is a workable solution for now.
by
benj919
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Firmware - Marlin
Dear all
I'm retrofitting a printer with a BLTouch probe and have a question concerning the bed levelling with UBL.
The printer bed can be levelled using three thumb screws. Originally the bed was levelled from the lcd menu, where it first home all three axis, then moved the extruder above the three levelling screws and I could adjust the bed. Is it possible to configure this kind of levelling i
by
benj919
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Firmware - Marlin
long time no see
I got somewhat distracted by real lifetm on my task to fix my cupcake. I fixed the heater initialization bug with the mainboard/extruder, though that code is not in releasable form.
Still, I have some patches that can be used right now:
- negativ floats regex: the regex only allowed for positive floats, which prevents printers with an origin on the center of the build envelope
by
benj919
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Firmware - experimental, borrowed, and future
Quotebenj919
The (probably/hopefully) last step before I start printing is to modify the power on/off routine to disable the steppers directly instead of turning off the power supply to keep the sd card working.
One step forward, one step back...
Shutting only the steppers off instead of the power supply was easy enough.
It seems that even though the heaters are handled by the extruder board
by
benj919
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Firmware - experimental, borrowed, and future
My thesis is done and I'm back to get my cupcake running.
I have "fixed" the heater problems by introducing an additional 500 ms tick for calling the heater step. I am running the PID loop with the original parameters retrieved from the makerbot firmware and a 8s history window, resulting in a +-1C oscillation; about the same I had with the original firmware.
The (probably/hopefully) last ste
by
benj919
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Firmware - experimental, borrowed, and future
QuoteTraumflug
Quotebenj919- The SD card is connected to the switched portion of the powersupply, and is therefore not detected if Teacup decides to switch off the power due to inactivity. Right now I just have it power on when calling M21, but that gives only a short window to use the card.
You mean the SD cards works at all? That's the first time I hear this from a Gen3 user. Apparently no oth
by
benj919
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Firmware - experimental, borrowed, and future
Thanks for this great firmware
I got it running on gen 3 electronics (cupcake) with a few small and one bigger issue:
- The SD card is connected to the switched portion of the powersupply, and is therefore not detected if Teacup decides to switch off the power due to inactivity. Right now I just have it power on when calling M21, but that gives only a short window to use the card.
- The extrud
by
benj919
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Firmware - experimental, borrowed, and future
QuoteHeaters
Name Pin PWM
bed AIO0 False
extruder AIO1 False
QuoteTemperature Sensors
Name Type Pin
bed TT_INTERCOM AIO0
extruder TT_INTERCOM AIO0
To answer my own question, this setup is wrong in two ways:
first, the AOIx pins define the index in the communication with the extruder, therefore they should be numbered in ascending order and in the
by
benj919
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General
Ok, so far I managed to compile and upload the extruder software (I'll provide a patch once everything works, there were only a few small things) and I can compile/configure the gen 3 mainboard.
This works for moving the steppers etc. although I have to manually copy&paste the tx/rx pin definitions into the board config file (follow up on issue 179 on github, I have a fix for that as well)
by
benj919
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General
Yes, I found a spare stepper controller and did the ugly cable hack (3g 5d shield) here:
Going by the schematics there and those for the gen 3 board here I have figured out all the required pins
I do have a heated bed, which is connected to the extruder board as well. (The machine is an old cupcake: )
I guessed as much for the extruder. The question is mostly how to tell the main board where
by
benj919
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General
Hi
I wrote you a few weeks ago about trying this firmware with gen 3 electronics. By now the new stepper motor arrived and I have installed all printable upgrades.
On github you wrote that the configtool does not work for the extruder controller. Do I therefore just not define any heaters/sensors for the main board and manually configure the extruder controller?
thanks
by
benj919
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General
QuoteTraumflug
All firmwares can operate with a stepper driven extruder.
Virtually all firmwares accept G-code. Not sure about sailfish, never heard about such a firmware.
Thanks for these clarifications.
Sailfish is (closely?) related to the official makerbot firmware or so I understand...
As of right now I'll probably try that one out first as I haven't figured out all the pins used for th
by
benj919
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General
Hi all,
I have an old Makerbot Cupcake that has collected a lot of dust over the last years and I'd like to bring it back to service.
What I have:
-Makerbot Cupcake
-Gen 3 electronics (Reprap MB v1.2, EC v2.2, relay board v1.0)
-Heated Building Platform
-3mm Mk5 Plastruder (DC Motor)
-A spare Stepper Motor Controller v2.3
-No endstops at all
What I'm looking for:
-Probably a stepper retrofit f
by
benj919
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General
I already posted in the recent Github issue for gen3 so I'll just drop this note to give a broader notice that there is a lone gen3 printer out there (in the form of an old cupcake)
by
benj919
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General