bobc_hardware

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Thermistor readings incorrect

3

There appear to be two problems: 1. AREF is an input to Due, not an output, and it is not connected Fix is to revert to 3.3V as reference voltage,...

bobc

5V drivers logic

3

I have S109 drivers based on TB67S109AFTG. They need vcc=5V. May I set VLOG JP101 to 3-2, (FD_5V) with Due ?

rafaljot

Ramps-FD: I like buy empty pcb

1

It would like to be built up one 3d printer using your panel (REMPS-FD) this will be the third machine what I prepare. Unfortunately home manufacturing too thin the lines...

pityuka3d

GERBER, Schematic and BOM do not match

1

Hello, I'm trying to do the RAMPS FD board for myself from scratch, and I encountered incompatibilities in the files. e.g the diagram has 220 ohm resistors that are not...

Kondziol

RAMPS-FD: LM7812 gets very hot

1

When running @24v with JP102 -VSEL pins 1-2 selected I found that the 7812 is getting very hot. I could actually smell it even with a fan running. I believe...

fullTalgoRythm

GitHub changed the way Markdown headings are parsed, so this change fixes it. See [bryant1410/readmesfix](https://github.com/bryant1410/readmesfix) for more information. Tackles bryant1410/readmesfix#1

bryant1410

DXF file for RAMPS-FD board

3

Hi, I'm Yasuo Suto. I'll try to use RAMPS-FD for delta type 3D printer. So, my mechanic colleague request the DXF file of RAMPS-FD in order to design the box...

YasuoSuto

RAMPS-FD: Improve ground connections

1

Specifically around: Pins between +5V and VIN Thermistors and End Stops.

cefiar

RAMPS-FD: 5V rail needs more current

3

5V is provided by the Due, but is limited to 800mA (or less). This is not really enough for extras like LCD, SD, servos, expansion boards. RAMPS has a seperate...

bobc

RAMPS-FD: Outputs D2 and D12 are on when firmware downloaded

1

The default state for GPIO pins leaves these outputs turned on. Add 10k pulldown resistors to prevent accidental turn on.

bobc