Stepper Motor Drivers (Page 1 of 2)

You can't replace davinci stepper drivers. They are soldered in and there are none compatible with davinci.

My drivers are removable I've had them out just now to look at them. I have the ones in the link been sent tomorrow all I can do is try to see if they fit if not I'll look at changing the board in it then just want to be able to get the current just right on the motors so there isn't too much current going to the motors because I have had my extruder over heat numerous time which results in a failed print because he motor just stops

Is there any other way of stopping the motor over heating on the extruder on long prints??

Have you got any suggestions on boards like different ones?? So I can have a look at my budget and how much control I have over it??

Thanks

Have you got a link to a page which shows how you would flash the boards and sire them up?

Isn't VDD what he wants to tweak? Maybe his resistor is bad on stepper driver

I am working on a complete conversion write up along with pre compiled firmware. Unfortunately seems my motor on my extruder did take some damage from the over current and has now started to fail. So until I get it replace in maybe a week topsmy write up is on hold.

What ever board you get you will also need to get three end stops. Preferably optical. The stock endstops will not work on an after market controller.

One usually a blue one is the actual Arduino which is a must, the other which is the RAMPS is what is known as a shield in the Arduino world. A shield is just a specific purpose interface/expansion board. In this case an interface for the printer. In addition to the Arduino and RAMPS most of the time sold as a set, you will also need 4 stepper drivers. DRV88 based ones are the best.

If you go with RAMPS the LCD is optional but a must if you plan to use an SDcard. If you do get the LCD you will need to buy or make two 5 foot long 10 pin ribbon cables. As the ones that come with the LCD are a foot long and will not reach the RAMPS and be in an accessible area.

Awesome that this is working for you, this is great news, no?

I don't know that it helps those of us that have the 1.0A.  I'm pretty sure the drivers are soldered onto the board.

I would imagine if the stepper drivers are integrated into the main board, the leads could just be cut...

I just hand-test the strength. I use a heatsink - it doesn't seem to get too hot and the back case is reasonably well ventilated.
TMC has a datasheet (http://www.trinamic.com/products/integr … _Datasheet) but I'm using a cheap ebay/chinese supplier so no guarantees it's the same

I wonder if, short of changing out the steppers themselves, if a variable resister could be placed in line with the stock motors to limit the voltage/current of the stock motors.  I have heard it stated that the stock drivers supply to high of a voltage, but I have not seen where anyone measured that.  I haven't really dug into Voltivo's forums, though.

I just know I need to do something.  I got almost a 3 cm shift in the x-plane on a fairly simple print today.  I know the belts are tensioned properly, the filamant was loose, and I have a fan on the eletronics, and all of the wires are in tact.  The motors just get blazing hot!

I really don't want to move the whole setup to RAMPS, but I am not going to put my E3D v6/Titan combo in this printer unless I can get the shifting under control!

@Telemachus: I already told you what may cause your x-axis shift: http://www.soliforum.com/topic/14361/ra … -in-print/

BTW - What is "blazing hot" converted to °C or °F?