Alternative (not 18v) electronics boards

[snowygrouch 1]

Hi,

Just wondered if anyone is/wants to use new electronics boards for the

Ultimaker.

I just ordered two 18v heater cartridges from Ultimaker, and it cost me over 90 EUROS !!!

(a "normal" 12volt one costs about 10x less than that :angry: )

 

http://www.makerfarm.com/index.php/12v-40w-ceramic-heater-cartridge-for-hot-ends.html

I just realised that I had spent over half the cost of a brand new RAMBO board just on two tiny spare parts for the current electronics. To which I am now locked in

due to the 18v system.... :roll:

So for sure these will be the very last monies Im going to spend out on parts for the 18v system.

So the question is....is there a board with sensible 12 or 24volt system that we can just upload MARLIN to and get on with it ? I am not talking about upgrading the CPU power, just getting something that I can directly upload my MARLIN firmware to and buy heater cartridges for 5 euros each...and not 45..... :blink:

For example anyone got/have thoughts on these:

http://www.reprapsource.com/en/show/6765

 

http://reprap.org/wiki/RUMBA

Regards

C.

 

 

[am001 0]

Or what I have done is change the 7812 linear regulator to a direct replacement switching one (8 GBP in RS, probably cheaper elsewhere) then run the board at 24V. Faster heating hot bed, standard voltage cartridge heaters, no problem. The UM 19V one works fine at 24 volts, so I suspect it is may be a 24v 60W device run at lower volts.

Everything apart from this regulator on the board runs from the regulated 12v or further stepped down voltages from the arduino except the steppers drivers, which can easily handle up to 36v as they are current controlled not voltage controlled.

Andrew

 

[snowygrouch 1]

Interesting, any chance of an RS part # for that ??....

 

[am001 0]

163-394

Its a RECOM 78B12-1

 

[rafael-matsunaga 0]

Would Arduino and a regular RAMPS board work for you? That's what I'm running, but my machine was built around it, so I'm not sure what other UM components could be incompatible with it.

Or try these $6 19V cartridges?

http://www.dfrobot.com/index.php?route=product/product&filter_name=heater&product_id=865#.UmflwnWkh7s