-
OK, Your schematic is fine. Now, the relay is Rated 10A for 30VDC so it is good for up to 300 watts. That is 12.5Amps at 24VDC, So No Problem there. You may get some arcing on the relay points when it opens (Temp achieved), then more as it will be turning on and off during the print. That will eve…
-
Hi, Please cancel this relay board order! I would not recommend to use a normal mechanical relay for a DC heabed as it will make a lot of switching with high currents and DC power have the tendency to make arcs so it will kill the relay in a few months (it will look like your melted connector, if …
-
Hi, The motherboard is a Ramps 1.4, look for a replacement. After the connector was replaced on the current one it can be a spare one in the future. The connector melted due to not making a proper connection (corrosion, faulty manufacture etc.) its the +12v wire for heatbed so its gets the biggest…
-
Hi There, First off, I would not reccomend trying to print again with this connector still on your machine. The risk of electrical fires or short circuiting just isn’t worth ruiniing your printer for. Any time you see a problem with the electronics it is a good idea to fix it. I would remove this p…
-
Did you check if, when you print your nozzle is not toi close from heat bed causing extra pressure inside nozzle or if the température that you using is enough high because spools need different temperature from distributor to distributor and also check if your fan give enough air flow to prevent he…
-
My Kossel originated from an He3D kit as well and I had the same problems. As @iceman198 said, if you are using their filament try to turn the temperature down to 190-195 deg max. Are you cooling the heatsink? If you are using the fan that came with the kit, I strongly suggest you to use this shrou…
-
I have the same one. The default settings had it printing at 205deg and it kept jamming in the heat sync like you discribe. I ended up turning it down to 195 and make sure the fan is pointed right at the heat sync and always on while printing (fan at 80% or higher). That seemed to fix it for me. Now…
-
Hi, As its an AC power (alternating current) its doesn’t matter the polarity, so just connect it as shown in the picture. One suggestion, replace the power cable with a 3 wire one with proper ground (PC power cable will be perfect). The ground connector on the power supply is just next the N on th…
