PCB Heatbed Mk1
including VAT
excluding shipping
This item can be dispatched
on next workday.
This is a very special PCB which provides a heated surface for Reprap or Reprap-like machines. A heatbed allows almost warp-free and raftless printing of ABS plastic, over its full print area.
Dimenstions and Print Size
This PCB heatbed is 214x214mm big, with a print area of approx. 200x200mm. Perfect size for Reprap Mendel and similar machines.
Mounting
This PCB can be mounted in various ways. It has a 3mm hole in every corner for using M3 bolts, other people may glue or clamp metal disks on the corners and use magents. However, it has to be mounted on a heat resistant underground. An insulating material below the heatbed is highly recommended.
Heating element
The heating element is on the bottom side. The heating is done by long traces of copper.
The top side is solid copper to keep the PCB flat enough. Also it prevents that the print head can render the heatbed completely useless when accidentally crashing into it.
Printing
You will need some Polyimide Tape to have a surface that sticks to ABS plastic when hot. Polyimide Tape is sold seperately (coming soon).
When having this PCB covered with Polyimide Tape you will be able to print most objects raftless on it. Please note that some smaller objects may become more difficult to print as the lower layers won't cool as fast as on non-heated beds. Printing multiple objects at the same time helps in this matter.
Ratings
With 12V, our prototype draws 9.9A when cold which goes down to 7.5A when hot. With isolation on the bottom of this heater, it reaches 100°C in about ~4,5 minutes, measured on the side of the heat field. These ratings may be slightly different on each PCB.
The base material of this PCB can withstand 150°C. However, a maximum of 120°C long time is recommeded.
Connection
While the PCB is almost fully covered in a nice red solder resist, there are two connection to solder cables on. Also, a possibility to mount two SMD LEDS and one SDM resistor.
Important: Use only cables which can withstand at least 15A and are able to withstand the heat. Most silicone and PTFE covered cables should do.
Important: Be sure to cover the solder joints with insulating heat resistant tape (for example Polyimide Tape)
LEDS, Resistor and cables and Polimide Tape are not included.
Quality
This PCB is made in Germany. Guaranteed tight tolerances of the copper amount on this PCB and guaranteed quality!
