New answers tagged heated-bed
1
I don't know about PVP but PVA sticks more at room temperature and gets weaker at higher temperatures, see "Influence of temperature on the strength of bonded joints"
I remember using hairspray with PVA for PETG and it was really difficult to detach large parts.
1
Searching the error message "Heating Failed: Bed Printer Halted, Please Reset" seems to indicate that the bed heater is timing out from not reaching temperature.
If you measure the voltage applied to the bed heater before the error message, does the voltage stay at Max.; i.e. 12V for a 12V bed heater? Or, does the voltage stay constant?
If you ...
1
It's in the firmware
Filament runout sensors generally trigger M600. Usually that preserves the bed temperature, but some firmware distributions might have this set up wrong.
How is M600 working?
The firmware dictates what is done in case of filament runout. The standard settings in configuration.h can look like this:
//#define FILAMENT_RUNOUT_SENSOR
#if ...
1
There is no easy way to keep the bed heatred during pause
Looking at the sourcecode, I am pretty sure that the current version (10/29/2019) keeps the heated bed at the right temperature.
Features are built into the firmware. You need an Arduino and some wires to write new firmware to the built-in SOC. Adjusting the code should be as simple as commenting a ...
1
In addition to the suggestion of cleaning the glass with soap (dish soap works very well) and THEN also with any alcohol or brake cleaner or similar no-trace solvent, you can use hairspray or glue stick for larger parts.
0
First thing I do when I notice that increasing bed temperature does not work any more, is washing the glass with soap or detergent. Some advice to use also isopropyl alcohol. My impression is that the main mistake is to use alcohol to wipe the glass instead of dismounting and thoroughly cleaning the glass from any grease. This is a bit more work, and for me ...
0
You can add a boost converter to the bed's power supply. Assuming that you are using an external MOSFET to control the bed (and you should). Verify what the MOSFET's max voltage rating is, then obtain a boost converter and configure it to give a voltage that is 10% less than the max. I once used this technique when driving a 24V hot end heater using a 12V ...
-2
For reference,I done tracing this module as shown.
So you can use isolated power supply for load.
Also you can use up to 24V without any problem.
Edit:
This module still work with higher voltage up to 24V. But according to question. Using higher voltage supply more than rated is same as my question here.
For summary. Adding more voltage to resistive load ...
3
Yes, this method will work. Some (LED) power supplies have a small potentiometer that you can use to slightly adjust the voltage. On a 12 V printer, adjusting the supply from 12 V to 14 V will give a 36% increase in power.
Obviously there is a limit to how much you can increase the voltage. The voltage itself is unlikely to be the limiting factor, but there ...
0
Not necessarily
Potential differential U, aka Voltage of a part, is not to be ignored: a 24 V part needs only 24 V, not 36 V. A 12 V heartbeat is only safe for 12 V. There is a little tolerance for those measurements, but rule of thumb is about 10-15% of the rated voltage, so a 12 V bed should not be operated at more than 13.8 V for an extended period.
What ...
0
The picture that is shown under the Printer Origin heading is not the print bed as stated. It is a picture of the print head and the nozzle position relative to the edge of the print head.
This is so you can set the print head to the end stop and have the nozzle on the edge of the bed. This normally only needs adjusting with a Z probe but can be used to ...
2
In addition to @fred_dot_u remarks:
Decrease initial layer speed
Try to print the initial layer at lower (very low speed). Start from 20 mm/s, move down even to 5-10 mm/s (e.g. just decrease speed% from the menu). I had many such issues when printing in too high speed (even directly on kapton tape): filament could not stick to the bed so quickly and rolled ...
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