1 Topic by asiddiqui86

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Topic: Davinci Bowden Nema Clicking need help

Hi Everyone,

I need some help with the settings, all that seems to happen since i replaced the stepper motor is clicking back and forth, trying to do an e3d conversion, got that down, now i am having problems everytime the stepper is activated to feed the filament it just moves back and forth, i have tried two steppers from two different suppliers, both nema 17 both do the same thing, like they just won't move properly,

i am running 0.92 repetier firmware on a davinci 1.0a

any help would be appreciated.

2 Reply by carl_m1968

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Re: Davinci Bowden Nema Clicking need help

Does the motor turn with no filament in the extruder?

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

3 Reply by asiddiqui86

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Re: Davinci Bowden Nema Clicking need help

Motor doesnt turn at all, should i just buy one from the davinci spares and try that, ive got two that havent done anything but move back and forth no matter what i do.

4 Reply by mark.burton

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Re: Davinci Bowden Nema Clicking need help

Check that you have the correct pairing wired up. it sounds as though you might have that not set correctly

5 Reply by asiddiqui86

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Re: Davinci Bowden Nema Clicking need help

thank you, any ideas on how it should be wired up with the existing davinci 1.0a wires??

6 Reply by arturnoole163

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Re: Davinci Bowden Nema Clicking need help

Hi,

Not an expert, but when I was doing the Bowden conversion for my 1.0 I also decided to use separate motor. The wiring did not match. Regular Nema 17 should have 6 pins (4 of them are actually used). If you have a tester, check for the resistants between the pins. The one's that make up a pair will have a resistance between them. Now you can take a
da vinci extruder nema motor and test for the resistance between the pins the same way. Connect the wires to the new motor based on the measurements. You only really have couple of  most common connection patters: 1/3 and 4/6 for example. You can measure the resistance without powering the motor.

7 Reply by mark.burton (edited by mark.burton 2015-08-31 01:31:02)

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Re: Davinci Bowden Nema Clicking need help

You don't need a meter to find the pairs. just spin the motor with no pairs connected then connect one pair and spin if ther is resistance then those are a pair. just repeat once you have the pairs you can wire them up. if it spins the wrong way just swap the pair and it will spin the way you need.

Also you can have a 4 wire a 6 wire and a 8 wire stepper motor. 

Here is a good description

http://digital.ni.com/public.nsf/allkb/ … C70017B9E2

8 Reply by asiddiqui86

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Re: Davinci Bowden Nema Clicking need help

Everything i have tried doesnt seem to work could it be repetier settings it just keeps moving back and forth it's so annoying

9 Reply by asiddiqui86

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Re: Davinci Bowden Nema Clicking need help

did both methods suggested and it just keeps rocking back and forth not moving forward in one smooth motion at all, this is the worst thing i have ever bought seriously the amount of problems that have occured with this printer, i cant even start to describe the amount of crap i have gone through with this thing.

10 Reply by kev0175

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Re: Davinci Bowden Nema Clicking need help

asiddiqui86 wrote:

Everything i have tried doesnt seem to work could it be repetier settings it just keeps moving back and forth it's so annoying


Have you tried running a earlier version of repetier

Da Vinci  AiO with firmware 1.1.1 using xyzscan 1.1.18
E3Dv6 hotend with custom carriage with Borosilicate glass bed
123D Design and Simplify3D, Replaced PS with a Solidgear Flex320
Zerokart resetter,  Installed a Extruder Controller for higher temps

11 Reply by mark.burton

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Re: Davinci Bowden Nema Clicking need help

I just took a closer look at the pins on my extruder and this is how mine is set up
pin 1 is yellow pin 2 is empty pin 3 is red pin 4 is blue pin 5 is empty pin 6 is orange

so it looks like the grounds will be pin 2 and 5
pin 1 and 3 are one pair and pin 4 and 6 are the other pair.
hope that helps

12 Reply by mark.burton

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Re: Davinci Bowden Nema Clicking need help

Note I am swapping my extruder to mk8 set up so I needed to swap my pins to make it move the right way since the drive gear and hob are swapped in that set up.

so now I have pin 1 as orange pin 2 empty  pin 3 is blue pin 5 is empty pin 6 is yellow.
this reversed my gear direction.

now if you have it pulsating you then you need to swap one set of the pins.
example if I was pulsating rather then turning I would swap pin 1 and 3.  or swap pin 4 and 6. Only swap one of the pairs not both.

it will then spin. if its the spinning the wrong way then you will need to change the pins like I did.

13 Reply by carl_m1968

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Re: Davinci Bowden Nema Clicking need help

You can change rotation direction in the firmware by setting that motor to inverted true or false depending on its current setting.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

14 Reply by mark.burton

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Re: Davinci Bowden Nema Clicking need help

Oh didn't know that about the firmware. I just moved what wires go to what pins

15 Reply by asiddiqui86

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Re: Davinci Bowden Nema Clicking need help

Thank you for everyones help but i cant be the only person on the globe with this issue. I bought an official davinci stepper from the australian reseller and the morons sent me the one from the x frame not the extruder stepper with the little gold cog, either way this is the only one out of three that has actually worked as it's supposed to.

Now speaking to these morons further they cant seem to find the actual stepper i need so i really wish someone out there could give me guidance as to why this specific brand is working when the others just rock back and forth and don't actually rotate.

16 Reply by mark.burton

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Re: Davinci Bowden Nema Clicking need help

There can be several reasons.  One could be that you don't have it wired right. Another is that you don't have the right volt/amperage for the motor. not wired right you can change, I don't know that you can do anything about the other when using the davinci mb.

You can on a ramps or Rambo the ramps you use the trim pots to set that or use the firmware to digitally set it depending on the board.

The davinci the output is digitally set, I don't know if you can change it.

So you need a nema 17 that is the same range of volts and amp settings
so what you need to know is what the force and the # of steps per deg of rotation
generally I don't see to many start below 37oz.in/26Ncm 37 and are .4A  (there are some but not many)
then they go up most common are the 1.2A - 1.5A but there are also 2A 2.5A and even some 3A

I don't know what the motors on the davinci are specified to draw