Change 16U2 from AU to MU package
by Chris 7 years 6 months
Change 16U2 from AU to MU package

Smaller, better stock availability
9d068371
Initial v1.4 changes
by Chris 7 years 6 months
Initial v1.4 changes

Move fuses upward slightly, make room for deeper screw terminals, adjust silkscreen labelling.
702260bc
Change power screw terminals
by Chris 7 years 7 months
670b0ad2
Add step, dir pins to drawing
by Chris 7 years 10 months
0895fd95
v1.3 Final Files
by Chris 7 years 11 months
e6e1e0df
Tidying
by Chris 7 years 11 months
302e8f4a
Change diode D8
by Chris 8 years 1 month
Change diode D8

D8's forward voltage is the limiting factor in 12V regulator current capability, currently gets uncomfortably hot running 12V 40W heater cartridges. Changing D8 to SSB44-E3, lower forward-voltage than previous part to reduce heating.
abf84f50
Update MOSFETs
by Chris 8 years 1 month
Update MOSFETs

Change heater and fan MOSFETs to BUK9Y21-40E - cheaper, improved gate-capacitance, logic-level, still very good RDSon. No loss of performance or significant heating at heater or fan current levels.
Leave bed MOSFET as PSMN1R8 for maximum current capability.
Change MOSFET numbering to make BOM tidier.
330b087d
Tidy library files
by Chris 8 years 1 month
3e4a2bca
Fix SMD crystal footprint
by Chris 8 years 1 month
7aaba525
Report a bug