| Electronics > Projects, Designs, and Technical Stuff |
| JBC-mini - a low cost T245 handle controller |
| << < (6/12) > >> |
| poorchava:
I will look into that. In principle this should not pose much problem. It will require additional set of MOSFETs and optocouplers. Opamp that I chose is already a dual channel one, so no problem there. I think my project is quite economical: T245 handpiece - 63€ (TME) some tip, eg C245939 - 35€ (TME) 24V, 150VA toroidal transformer - 19€ (toroidy.pl - local Polish manufacturer), almost any other transformer can be used (i use 12V/300VA in the prototype and it works just fine) STM32F051K6 - 2.5€ (Farnell) RPC1-6RB-12P connector - 2.8€ (Farnell) PCB - ~2€/piece from Elecrow if it fits on 10x10cm format MCP6V02 opamp - 2.2€ Enclosure - http://www.kradex.com.pl/shop?product=287 Local Polish manufacturer, they have english version of the website but i dunno if they ship abroad. If anything, I can buy and distribute that to people. Anyway - appropriate enclosure is under 2€. Other bits and pieces like displays, encoder, optocouplers, trimpots and the like can be had from anywhere or from junk, so I won;t bother listing them, as anybody probably has them in their junkpile. So the control units sums up to 30€ for major components. Even assuming that the rest will cost another 30€, this is still cheap :) |
| tautech:
I love a good rats nest. >:D Keen to see your finished PCB. |
| dannyf:
--- Quote ---So the control units sums up to 30€ --- End quote --- I think I can get mine under $10: mcu: <$2. led display: <$1. mosfet: <$1. encoder: $1. misc. parts: $1. laptop power supply: free. |
| poorchava:
I don't doubt that, but JBC T245-A handpiece and C245 cartridges are superior to hakko, especially when it comes to power and ability to handle large thermal masses which is important to me as I do quite a lot of power electronics. |
| poorchava:
Some update :). I have selected an enclosure and made a PCB for it. I'm hoping to order the PCB some time soon. |
| Navigation |
| Message Index |
| Next page |
| Previous page |