When designing high-speed applications, working with SMT components and soldering by hand can be tedious. Robert H8-3687-based SMT Reflow Oven Controller transforms a conventional infrared toaster oven into an effective reflow oven that ensures thermal control.
http://www.circuitcellar.com/library/print/0704/Lacoste_168/index.htm
An indicator is nice, but how to implement that? Because all the intelligence of the heat regulation happens inside the soldering iron, the station itself is just a big 230 to 24V-transformer and an on-off-switch.
http://spritesmods.com/?art=wtcpled
It was used to etch several PCBs. As this etcher supposed to be used for making PCB’s using photoresitive technology, the controller supposed to control both the heater of etching tank and heater of developer.
http://www.scienceprog.com/pcb-etcher/
One of more advanced PCB manufacturing methods is exposing laminate copper boards covered by photo resistive layer through mask. Using UV light in manufacturing PCBs has many benefits according to other methods. you can get thin tracks like 0.2mm.
http://www.scienceprog.com/ultraviolet-light-source-uv-80-for-pcb-exposure/
Another method of creating your PCBs at home.
http://tacashi.tripod.com/elctrncs/pcbworks/pcbworks.htm
How to make nice looking ones of your own designs.
http://www.solarbotics.net/library/techniques/buildpcb.html
The process of PCB development is highly dependent on the characteristics of the material at hand - this page describes the process using materials obtained in Australia.
http://www.users.bigpond.com/pbhandary/misc/MakePCB.html
Allow PCBs to be made with repeatable results for track width and spacings down to 0.2mm (0.008").
http://www.users.bigpond.net.au/vk3yng/pcb/making_pcbs.htm
Make PCBs at home for a modest expense. Good procedure for experimenters and homebrewers.
http://www.qsl.net/k5lxp/projects/PCBFab/PCBFab.html
http://www.geocities.com/pdmtr/