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reprap:electronics:heatbed_mosfet [2017/07/04 08:18] – [Why] sjouke | reprap:electronics:heatbed_mosfet [2018/12/02 02:27] – external edit 127.0.0.1 |
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===== Howto Connect your Hotbed (and or extruder) to a Mosfet ===== | ===== Howto Connect your Hotbed (and or extruder) to a Mosfet ===== |
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**IMPORTANT: I have seen people trying to (re-)sell these mosfet units with a HUGE profit on EBAY while referring to this page for installationschematics, go shop around, they don't need to be more expensive than around €5 to €10 ($5 to $10) incl PP.** | **IMPORTANT: I have seen people trying to (re-)sell these Mosfet units with a HUGE profit on EBAY while referring to this page for installation schematics, go shop around, they don't need to be more expensive than around €5 to €10 ($5 to $10) incl PP.** |
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[[http://www.banggood.com/10Pcs-Geekcreit-3D-Printer-General-Add-on-Heated-Bed-Power-Expansion-Module-For-Chitu-Motherboard-p-1135020.html?p=2322113070965201511G|Click here for an example of some prices]] | [[http://www.banggood.com/10Pcs-Geekcreit-3D-Printer-General-Add-on-Heated-Bed-Power-Expansion-Module-For-Chitu-Motherboard-p-1135020.html?p=2322113070965201511G|Click here for an example of some prices]] |
{{:reprap:electronics:mosfet.jpg?200|}} {{:reprap:electronics:2pin-jst.jpg?200|}} {{:reprap:electronics:red-black-copper-wire-2x1-5-led-strip-monitor-power-cabl.jpg?200|}} | {{:reprap:electronics:mosfet.jpg?200|}} {{:reprap:electronics:2pin-jst.jpg?200|}} {{:reprap:electronics:red-black-copper-wire-2x1-5-led-strip-monitor-power-cabl.jpg?200|}} |
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://www.aliexpress.com/item/3D-Printer-Parts-General-Add-on-Heated-Bed-Power-Expansion-Module-High-Power-Module-expansion-board/32765683570.html|General Add-on Heated Bed Power Expansion Module on aliexpress.com]] or this [[http://www.banggood.com/Heated-Bed-Power-Expansion-Module-Large-Power-For-3D-Printer-Chitu-Motherboard-p-1133861.html?p=2322113070965201511G|on banggood.com]] or [[http://www.ebay.de/itm/272414319250?_trksid=p2057872.m2749.l2649|on ebay.de]] | 3D-Printer-Parts-General-Add-on-Heated-Bed-Power-Expansion-Module-High-Power-Module-expansion-board[[http://www.banggood.com/Heated-Bed-Power-Expansion-Module-Large-Power-For-3D-Printer-Chitu-Motherboard-p-1133861.html?p=2322113070965201511G|on banggood.com]] |
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Question: Can I use a mechanical relays too? | Question: Can I use a mechanical relays too? |
====For the signalwire there has been some confusion==== | ====For the signalwire there has been some confusion==== |
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some people claim polarity matters , for clarification i have taken a picture showing **POLARITY DOES NOT MATTER**. | some people claim polarity matters **they are right sometimes** some mosfets are polarity sensitive. |
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| 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. |
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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 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's below you can see the "bridge-rectifier" on the mosfet (just to the right of the white plug) wich corrects "wrong" connection of this wire! |
In the photo's below you can see the "bridge-rectifier" on the mosfet, just to the right of the white plug wich corrects "wrong" connection of this wire! | |
{{ :reprap:electronics:20170127_151943.jpg ?400 |}} | {{ :reprap:electronics:20170127_151943.jpg ?400 |}} |
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