Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revisionBoth sides next revision | ||
reprap:electronics:heatbed_mosfet [2017/06/29 12:30] – [How to install] sjouke | reprap:electronics:heatbed_mosfet [2019/08/11 17:08] – [What you need] sjouke | ||
---|---|---|---|
Line 1: | Line 1: | ||
===== Howto Connect your Hotbed (and or extruder) to a Mosfet ===== | ===== Howto Connect your Hotbed (and or extruder) to a Mosfet ===== | ||
- | **IMPORTANT: | + | **IMPORTANT: |
- | [[http:// | + | [[https:// |
===== Why ===== | ===== Why ===== | ||
The idea is pretty simple: The high current of the hotbed brings multiple problems to your mainboard. | The idea is pretty simple: The high current of the hotbed brings multiple problems to your mainboard. | ||
Line 10: | Line 10: | ||
{{: | {{: | ||
| | ||
- | but if not connected properly even they CAN and WILL melt, *remember transition resistance equals heat development) | + | but if not connected properly even they CAN and WILL melt, |
+ | | ||
Removing the hotbed bed current from the mainboard, significantly reduces stress on your mainboard (connectors). | Removing the hotbed bed current from the mainboard, significantly reduces stress on your mainboard (connectors). | ||
Line 21: | Line 22: | ||
{{: | {{: | ||
Note: Some mosfets are sold with the signal wire, some without, check if you need to buy a separate one. | Note: Some mosfets are sold with the signal wire, some without, check if you need to buy a separate one. | ||
- | [[https:// | + | 3D-Printer-Parts-General-Add-on-Heated-Bed-Power-Expansion-Module-High-Power-Module-expansion-board[[http://https:// |
Question: Can I use a mechanical relays too? | Question: Can I use a mechanical relays too? | ||
Line 29: | Line 29: | ||
===== How to install ===== | ===== How to install ===== | ||
- | A special bracket to mount both PCB' | + | A special bracket to mount your ANET mainboard and 1 mosfet unit, you can find here https:// |
+ | {{ : | ||
+ | |||
NOTE: More than one version of the ANET controlboard is being shipped from China, always check for + and - (polarity) on the boards. | NOTE: More than one version of the ANET controlboard is being shipped from China, always check for + and - (polarity) on the boards. | ||
* RED | * RED | ||
Line 48: | Line 49: | ||
====For the signalwire there has been some confusion==== | ====For the signalwire there has been some confusion==== | ||
- | some people claim polarity matters , for clarification i have taken a picture showing | + | some people claim polarity matters |
+ | |||
+ | For the mosfet unit shown in the 2 pictures here, **POLARITY DOES NOT MATTER**, check them side by side with the signal wire connected both ways. | ||
- | Check the 2 pictures side by side with the signal wire connected both ways. | + | In both pictures the hotbed was set to preheat PLA, both led blue (D2) and Red (D1) light up and everything functions as it should. |
- | | + | In the photo' |
- | In the photo' | + | |
{{ : | {{ : | ||