![]() The board must be placed as close as possible to the temperature probe in order for the measurements to accurately represent the actual status of the board. High temperature fiberglass insulation added to wiresĭuring the reflow process, the oven must precisely follow a temperature curve like the one to the left in order to avoid overheating components but make sure that all of the solder has a chance to melt and properly. Servo motor and controleo3 oven controller mountedĬontroller wired to servo, relays and power supply Metal bracket added to door so that it can be pushed open by a servo Solid state relays installed with an aluminum heatsink to control heating elements Original timer and temperature control circuitry removedĪdditional “boost” heating element installed Hole drilled in oven chamber wall, temperature probe installed, hole sealed with silicone ![]() Reflect-A-Gold heat reflective tape applied inside oven chamber (including door)Įmpty spaces in oven filled with ceramic insulating blanket and fiberglass welding blanket Modifications made to the oven:Īll air gaps in walls of oven chamber sealed with high temperature siliconeĪluminum and glass fiber insulation added to inside of oven chamber (including door) ![]() The original oven was this one from Amazon, which was modified using this open source kit, following this build guide. I modified the oven to withstand the high temperatures involved in reflow soldering and to maintain them in order to precisely follow a temperature curve. This is a heavily modified toaster oven I built in summer 2018.
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