prusa I3 X 3d printer
Posted by liltroy85
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prusa I3 X 3d printer September 30, 2015 08:34AM |
Registered: 8 years ago Posts: 9 |
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Re: prusa I3 X 3d printer September 30, 2015 08:46AM |
Registered: 14 years ago Posts: 3,742 |
Measure the resistence of your heating element. It should be 6-8 ohms for 12vdc, 3-4 ohms for 24vdc.
What voltage are you driving it at? I assume 12vdc.
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
What voltage are you driving it at? I assume 12vdc.
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
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Re: prusa I3 X 3d printer September 30, 2015 10:53AM |
Registered: 8 years ago Posts: 9 |
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Re: prusa I3 X 3d printer September 30, 2015 11:11AM |
Registered: 14 years ago Posts: 3,742 |
Hmmm... 
It is difficult to recommend anything without more information.
What hot end are you using?
For example, the E3D has become a very popular hot end and it comes with heater cartridges for 12vdc and 24vdc.
If you are running 12vdc but have a 24vdc heater cartridge then this would never get hot enough (although it should get up to ~50°C).
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
It is difficult to recommend anything without more information.
What hot end are you using?
For example, the E3D has become a very popular hot end and it comes with heater cartridges for 12vdc and 24vdc.
If you are running 12vdc but have a 24vdc heater cartridge then this would never get hot enough (although it should get up to ~50°C).
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
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Re: prusa I3 X 3d printer September 30, 2015 11:19AM |
Registered: 8 years ago Posts: 9 |
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Re: prusa I3 X 3d printer September 30, 2015 11:50AM |
Registered: 14 years ago Posts: 3,742 |
So your hotend comes completely assembled and is supposed to have a 30 watt, 12vdc heating element.
Is the heating element on constantly?
Does the firmware (FW) perhaps have a MAXTEMP defined?
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
Is the heating element on constantly?
Does the firmware (FW) perhaps have a MAXTEMP defined?
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
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Re: prusa I3 X 3d printer September 30, 2015 02:30PM |
Registered: 8 years ago Posts: 9 |
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Re: prusa I3 X 3d printer September 30, 2015 04:27PM |
Registered: 8 years ago Posts: 9 |
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Re: prusa I3 X 3d printer October 01, 2015 04:51AM |
Registered: 14 years ago Posts: 3,742 |
You need to get down to basics.
There is a pin that that is attached to the heating cartridge.
When output is 12vdc it heats, when output is 0vdc it does not heat.
Also the heating cartridge must have a finite resistance.
MEASURE THE RESISTENCE. If ~0 Ω or ~ infinite (millions) Ω then your heating cartridge is defective.
If it has a low Ω value say 2 - 8 Ω it is probably OK, then you need to see if 12vdc is being output by the pin connected to the heating cartridge (or not).
Edited 1 time(s). Last edit at 10/01/2015 04:52AM by rhmorrison.
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
There is a pin that that is attached to the heating cartridge.
When output is 12vdc it heats, when output is 0vdc it does not heat.
Also the heating cartridge must have a finite resistance.
MEASURE THE RESISTENCE. If ~0 Ω or ~ infinite (millions) Ω then your heating cartridge is defective.
If it has a low Ω value say 2 - 8 Ω it is probably OK, then you need to see if 12vdc is being output by the pin connected to the heating cartridge (or not).
Edited 1 time(s). Last edit at 10/01/2015 04:52AM by rhmorrison.
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
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Re: prusa I3 X 3d printer October 01, 2015 11:09AM |
Registered: 8 years ago Posts: 9 |
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Re: prusa I3 X 3d printer October 01, 2015 11:20AM |
Registered: 14 years ago Posts: 3,742 |
3 Ω @ 12 vdc = 48 watts power (should be enough).
You don't measure the heating block you measure the DC voltage going to the heating cartridge.
One side is connected to ground the other to the output of the FET that is driven by the E0 output of the board.
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
You don't measure the heating block you measure the DC voltage going to the heating cartridge.
One side is connected to ground the other to the output of the FET that is driven by the E0 output of the board.
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
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Re: prusa I3 X 3d printer October 01, 2015 11:27AM |
Registered: 14 years ago Posts: 3,742 |
What electronics board is your printer using?
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
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Re: prusa I3 X 3d printer October 01, 2015 01:04PM |
Registered: 8 years ago Posts: 9 |
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Re: prusa I3 X 3d printer October 01, 2015 01:37PM |
Registered: 8 years ago Posts: 9 |
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Re: prusa I3 X 3d printer October 02, 2015 03:51AM |
Registered: 14 years ago Posts: 3,742 |
According to the wiring diagram on the GT2560 Geeetech Wiki page you have the hotend plugged into Extruder 2 (or the hotbed connector instead of Extruder 1).
Make sure that the hotbed is plugged into the middle connector and the hotend cable into the bottom connector (in your picture where no wires are connected).
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
Make sure that the hotbed is plugged into the middle connector and the hotend cable into the bottom connector (in your picture where no wires are connected).
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
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Re: prusa I3 X 3d printer October 02, 2015 10:03AM |
Registered: 8 years ago Posts: 9 |
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Re: prusa I3 X 3d printer October 02, 2015 10:17AM |
Registered: 14 years ago Posts: 3,742 |
I think you need to start at the beginning and verify all connections and go through their setup and initialization/calibration procedures.
GeeeTech also has a forum which would be a better place to ask questions caused by problems with their hardware.
Search for "ERR: MINTEMP" on the forum.
Edited 1 time(s). Last edit at 10/02/2015 10:37AM by rhmorrison.
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
GeeeTech also has a forum which would be a better place to ask questions caused by problems with their hardware.
Search for "ERR: MINTEMP" on the forum.
Edited 1 time(s). Last edit at 10/02/2015 10:37AM by rhmorrison.
Bob Morrison
Wörth am Rhein, Germany
"Luke, use the source!"
BLOG - PHOTOS - Thingiverse
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