Feeder solution for UM2 for filaments 1,75mm

[paul9 20]

Hello guys,

Yesterday I converted my Ultimaker 2 to the filaments from 1,75mm.

My choice was desired for the simple reason that it is much easier to find in nature, and different colored filaments with a diameter of 1,75mm to 2,85mm that.

After changing the extruder block with a suitable provided by 3Dsolex, I also changed the feeder that so far had been to the factory with all the problems we now know all owners of a UM2.

I mounted feeder IRobertl modified to filaments from 1,75mm.

At a time of mounting the component MK8 with 5mm I had to give up the mount because this prevented me to add another important component to guide the thread as you can see from the attached photos.

I then reassembled the one provided in the original version of the feeder.

For now it seems that all is well, but I would ask all of you how to mount a MK8 system that is smaller.

Edited September 14, 2016 by Guest

[neotko 1,417]

https://www.youmagine.com/designs/snap-on-guide-for-iroberti-feeder-with-mk7-mk8

[paul9 20]

https://www.youmagine.com/designs/snap-on-guide-for-iroberti-feeder-with-mk7-mk8

 

Hi neotko, thanks!

I wanted to know if I mount the MK8 component must make anceh of the machine software changes?

[neotko 1,417]

Yeah you will need to readjust the esteps.

Read from 'The feeder'

https://ultimaker.com/en/resources/20556-ultimaker-original-175mm-filament-conversion

[paul9 20]

Yeah you will need to readjust the esteps.

Read from 'The feeder'

https://ultimaker.com/en/resources/20556-ultimaker-original-175mm-filament-conversion

 

Where do I change these values? (Motor Step angle: 0.9º (400th) for Ultimaker 2)

I can not find them on the settings panel of my Ultimaker 2.

[paul9 20]

you can reduce the retraction distance of 3.2 mm also on Ultimaker2?

and the retraction speed that value must have?

[neotko 1,417]

Read this

https://ultimaker.com/en/community/21533-where-to-edit-firmware-esteps-for-um2

Also tinkergnome firmware allows to change it using the screen on the um2.

[paul9 20]

Read this

https://ultimaker.com/en/community/21533-where-to-edit-firmware-esteps-for-um2

Also tinkergnome firmware allows to change it using the screen on the um2.

I can not find a guide to show me how to change motor steps as you said to me.

I'm no expert and I've never done something like that, you can indicate a tutorial that explains step by step how to do this procedure.

Thank you.

[neotko 1,417]

It's explained on the post but

M92 E97.6

M500

M92 E sets the esteps

M500 Writes the change on the printer memory.

Remember to add a 'return' after M500 or the gcode won't be executed.

As soon you have the correct esteps value, you make a text file with that 3 lines and you name it something.gcode or anyname.gcode

The three lines are

1st Line: M92 E97.6 (with other numbers ofc that will be the esteps)

2nd Line: M500 (this command saves the new esteps into the printer memory

3rd Line: Empty, but must exist to ensure you placed a 'return key' at the end of line 2.

[paul9 20]

It's explained on the post but

 

M92 E97.6

M500

M92 E sets the esteps

M500 Writes the change on the printer memory.

Remember to add a 'return' after M500 or the gcode won't be executed.

 

As soon you have the correct esteps value, you make a text file with that 3 lines and you name it something.gcode or anyname.gcode

The three lines are

1st Line: M92 E97.6 (with other numbers ofc that will be the esteps)

2nd Line: M500 (this command saves the new esteps into the printer memory

3rd Line: Empty, but must exist to ensure you placed a 'return key' at the end of line 2.

 

But how do I understand or know the correct steps value?

[neotko 1,417]

You get a caliper, measure the dia of the mk8 (the area that grips) then you calculate the leadscrew pitch (use the guide I linked and read the part of 'thefeeder'. To calculate the leadscrew pitch get the dia you got from the mk8 (effective dia) * pi (3.1415)

The number that gives the reprapcalculator you * by 5.5 and that will give you an almost accurate esteps. Then you can fine tune it visually or by using guides available on internet (search adjusting esteps 3d printer).

Edited September 15, 2016 by Guest

[paul9 20]

I will have to ask another piece of information. I currently have installed the m16 spacer 38mm but I think it is correct to 37 mm What can you tell me about you?

[neotko 1,417]

I will have to ask another piece of information. I currently have installed the m16 spacer 38mm but I think it is correct to 37 mm What can you tell me about you?

 

On that matter I can't comment, just because I use a customized 60mm m3 screw where I insert printed spacers to make a custom sized m3. What I know is that 1.75mm doesn't need to be 'really tight' it's more weak and also it doesn't need that much force to extrude (vs 2.85mm) so it's a trial/error preference. Over time you will end knowing how much force it's ok for each filament.

[paul9 20]

 

I will have to ask another piece of information. I currently have installed the m16 spacer 38mm but I think it is correct to 37 mm What can you tell me about you?

 

On that matter I can't comment, just because I use a customized 60mm m3 screw where I insert printed spacers to make a custom sized m3. What I know is that 1.75mm doesn't need to be 'really tight' it's more weak and also it doesn't need that much force to extrude (vs 2.85mm) so it's a trial/error preference. Over time you will end knowing how much force it's ok for each filament.

 

Ok I understand. Thank you

[paul9 20]

This is correct site?   http://prusaprinters.org/calculator/

In this part of the site I have to enter the data that I have calculated?

Stepper Motors

Steps per millimeter - belt driven systems

[paul9 20]

 

I will have to ask another piece of information. I currently have installed the m16 spacer 38mm but I think it is correct to 37 mm What can you tell me about you?

 

On that matter I can't comment, just because I use a customized 60mm m3 screw where I insert printed spacers to make a custom sized m3. What I know is that 1.75mm doesn't need to be 'really tight' it's more weak and also it doesn't need that much force to extrude (vs 2.85mm) so it's a trial/error preference. Over time you will end knowing how much force it's ok for each filament.

 

Value is 11 mm

after 11x3,14=34,54 and later this value as part of the site so I'll have to inseire?

http://prusaprinters.org/calculator/

[neotko 1,417]

Dont skip decimal points it's 10.91*3.1415=34.2737

That for the um2 motor is n the calculator says 186.73 and now that value you add a 5.5% so 197.00 esteps as starting point

Next time don't be lazy and read all

[paul9 20]

Dont skip decimal points it's 10.91*3.1415=34.2737

That for the um2 motor is n the calculator says 186.73 and now that value you add a 5.5% so 197.00 esteps as starting point

Next time don't be lazy and read all

 

It is not laziness, and I did not understand well.

My English is not good.

And now with that value as I proceed to apply it in my UM2?

[neotko 1,417]

Yea 197.00 esteps should work, but it might not be perfect and should be adjusted.

I was just joking don't worry

[paul9 20]

Yea 197.00 esteps should work, but it might not be perfect and should be adjusted.

I was just joking don't worry

 

Thanks!

but I can not figure out where I need to enter this value, you can give the full process of where to insert the calculated value?

[neotko 1,417]

That's fully explained

https://ultimaker.com/en/community/22597-feeder-solution-for-um2-for-filaments-175mm?page=last#reply-156590

Make a Text file with that data

M92 E197.00

M500

Or connect to the printer with USB using Printrun

http://www.pronterface.com

And 'type' that codes into the printer (it's like a chat to talk to the printer)

[paul9 20]

I have created the file as you wrote to me.

I called feeder.gcode and inside there are three lines with my values.

now where I'm going to enter?

[neotko 1,417]

Now you launch it as a print, that will change the esteps of the machine.

[paul9 20]

Now you launch it as a print, that will change the esteps of the machine.

 

I open CURA and load as I normally do with a press of a stl files?

Did I get it right?

But I'll have to do every time or do now will not have to do it again?

[neotko 1,417]

The change it's done on the machine, forever.

To remove the change you need to reset factory settings 'on the machine'.