Hotend stops heating at around 40 degree celcius
Posted by Print
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Hotend stops heating at around 40 degree celcius July 12, 2024 09:55AM |
Registered: 8 weeks ago Posts: 2 |
Hi,
I'm trying to create a simple setup with an extruder, a hotend and a fan (all components of the Prusa MK3S) using RAMPS 1.4 and the Marlin software. Unfortunately, the attempt to set a temperature for the hotend is always cancelled at around 40 degrees. (I also use the thermistor on the Prusa hotend here). Does anyone have any idea how I can get the hotend to work?
Many thanks for your help
I'm trying to create a simple setup with an extruder, a hotend and a fan (all components of the Prusa MK3S) using RAMPS 1.4 and the Marlin software. Unfortunately, the attempt to set a temperature for the hotend is always cancelled at around 40 degrees. (I also use the thermistor on the Prusa hotend here). Does anyone have any idea how I can get the hotend to work?
Many thanks for your help
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Re: Hotend stops heating at around 40 degree celcius July 12, 2024 10:22AM |
Admin Registered: 13 years ago Posts: 7,101 |
Prusa Mk3S has 24v volt components including the hotend heater cartridge the ramps is 12v. this will not work together.
The Cooling Fan 5015 50x50x15mm from the Prusa mk3s is 5v so you cannot plug that into any of the ramps mosfets either, they all run at 12v.
There are hacks you can do to change a ramps to 24v [reprap.org]
Or get yourself a 40watt 12v heater cartridge
Edited 2 time(s). Last edit at 07/12/2024 11:28AM by Dust.
The Cooling Fan 5015 50x50x15mm from the Prusa mk3s is 5v so you cannot plug that into any of the ramps mosfets either, they all run at 12v.
There are hacks you can do to change a ramps to 24v [reprap.org]
Or get yourself a 40watt 12v heater cartridge
Edited 2 time(s). Last edit at 07/12/2024 11:28AM by Dust.
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Re: Hotend stops heating at around 40 degree celcius July 15, 2024 03:21AM |
Registered: 8 weeks ago Posts: 2 |
Thanks for the quick reply!
I have tried to solve this problem with dc dc voltage converters behind the outputs for hotend and fan. So a power supply with 12V 8A. A converter from 12V to 5V at the D9 output and a 12V to 24V 10A at D10. The fan and extruder seem to work, but not the hotend. Above all, I would have to find a solution for the 12V extruder with a 24V power source, wouldn't I?
I have tried to solve this problem with dc dc voltage converters behind the outputs for hotend and fan. So a power supply with 12V 8A. A converter from 12V to 5V at the D9 output and a 12V to 24V 10A at D10. The fan and extruder seem to work, but not the hotend. Above all, I would have to find a solution for the 12V extruder with a 24V power source, wouldn't I?
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Re: Hotend stops heating at around 40 degree celcius July 15, 2024 04:38AM |
Admin Registered: 13 years ago Posts: 7,101 |
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