1 (edited by Lasercigusa 2015-02-08 09:51:52)

Topic: Extruder feed motor stops after a certain feedrate?

I have a Da Vinci 1.0 with the "J37" board. It's running Repetier Mod .92, I'm pretty impressed. I'm also running Repetier Host. Here's the problem. After countless hours of calibrating, I finally got a good quality print, but if I set the feedrate any higher than 80, the feed motor just stops. I watched the feed hands just stop. Now 80 or under it works fine! I'm using third party filament, 1KG spools, and I don't mind the wait for my parts to get done, but honestly, Im using this printer for business. I build E-Cig mechanical mods. If anyone has any information on how I can fix the problem, it would be greatly appreciated!!

2

Re: Extruder feed motor stops after a certain feedrate?

Lasercigusa wrote:

I have a Da Vinci 1.0 with the "J37" board. It's running Repetier Mod .92, I'm pretty impressed. I'm also running Repetier Host. Here's the problem. After countless hours of calibrating, I finally got a good quality print, but if I set the feedrate any higher than 80, the feed motor just stops. I watched the feed hands just stop. Now 80 or under it works fine! I'm using third party filament, 1KG spools, and I don't mind the wait for my parts to get done, but honestly, Im using this printer for business. I build E-Cig mechanical mods. If anyone has any information on how I can fix the problem, it would be greatly appreciated!!


Again you are expecting too much. There is limit to the speed that it can feed versus set temp. You are hitting that limit and you have already stated the solution. As I mentioned in your other thread where we found you where pushing the machine too hard, if you need to meet production schedules then buy and run more machines. I know one guy that runs a business similar to yours and he runs 10 machines 24/7.

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.

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Re: Extruder feed motor stops after a certain feedrate?

But that's not the problem I sat and watched the gears just stop. I don't mind the wait. But is there's something wrong with my machine I need to know

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Re: Extruder feed motor stops after a certain feedrate?

And another thing, this worked fine with the stock filament. I'm talking about if I i move it five notches it stops. It's not normal. And also, it's giving me gloopy edges

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Re: Extruder feed motor stops after a certain feedrate?

I could run the stock filament on feedrate 300 and it worked just fine. Not saying that it was smart haha. But now if it goes even to 100 it just stops. I don't get it.

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Re: Extruder feed motor stops after a certain feedrate?

So maybe it is just bad filament. What color is it?

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.

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Re: Extruder feed motor stops after a certain feedrate?

Green ABS 1.75mm bought from suppliesoutlet.com

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Re: Extruder feed motor stops after a certain feedrate?

But if the filament is bad, why would the feed motor just stop turning? I'm not trying to argue, I'm just trying to educate myself.

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Re: Extruder feed motor stops after a certain feedrate?

I thought maybe it was clear or translucent. Could it be a faulty heater connection and the temp is dropping to low? It will stop to avoid damages if the temp drops below the melt temp.

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.

10

Re: Extruder feed motor stops after a certain feedrate?

It's never dropped. I usually run between 225 and 240 and my bed set between 85-110. I watched it the entire 4 hours it took to print. Then I ramped it up 20 notches to 100 and the motor just stopped. No temp loss no nothing

11 (edited by carl_m1968 2015-02-09 19:44:54)

Re: Extruder feed motor stops after a certain feedrate?

Lasercigusa wrote:

It's never dropped. I usually run between 225 and 240 and my bed set between 85-110. I watched it the entire 4 hours it took to print. Then I ramped it up 20 notches to 100 and the motor just stopped. No temp loss no nothing


There is a max feed rate and it cannot be exceeded. It is there to prevent the extruder from pushing filament too fast and it not fully melting. I know you are trying to use this machine for a business.

But the simple truth is you are expecting more from 3D printing then it is capable of. The speeds you want to run at exceed the capacity of this machine.

Your only solution is to buy one or two more machines. I mean at the price of $400 each whats to loose? You can then maybe meet your expectations of time required.

Your max speed for printing on this machine as I have been testing the last few days is 65mm/s, maybe 70mm/s but that is pushing it. If you are running on Simplyfy3D then that would be 3600mm/m.

That being said, that is for the infill, in perimeters, and areas that don't show. For areas that show, tight corners and holes you will need to drop down to 40mm/s.

I am sorry to say but FFF based 3d Printing is just not up to productions speeds and standards and never will be simply due to the way the machine operates and they way the filament is melted in deposited. You can't heat it more or it will burn. You can't feed it faster or you will will risk cold jams in your extruder. There are just inherent speed limits in these machines and you really need to acknowledge this. I have been printing over 6 years and have built 2 machines from kits and have had my Da Vinci since November of last year when a guy was selling them on ebay for repair. I know how these machines work and I know their capabilities.

There are two ways to make things happen faster. Buy and run multiple machines. Or sell the Da Vinci and get a Delta style printer which may increase your speed by 20%.

You are just going to have to except these machines are slow and that is one of the limiting factors to consider if thinking about a business based around one.

I wanted to add that if you run multiple machines, there are ways to do it where you still only need one computer.

I know a guy who is running ten machines. He runs them from the SD card which can be done on the Da Vinci. Just relocate the card to the print area with an extension cable for easy access. If you are running the Da Vinci on stock then once a print starts you can disconnect the PC or laptop and move on to the next machine and load it up.

There are also air cards which are SD cards that let you move files to them over wifi. The just use the printers LCD to print file from the card.

In anyr case it sounds like one machine will not meet your needs. Or you need to re-evaluate your production schedule and readjust it based on the machines capabilities rather than your expectations.

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.

12

Re: Extruder feed motor stops after a certain feedrate?

Alright I'll take your advice! Now here's another question. I finally got my printer to print a part, but it looks like crap. The outer walls look kinda gloopy. I'll attach a pic. I sliced it with Slic3r, and that actually got it to stick to the bed. I prefer to use CuraEngine, I printed the first part with CuraEngine and it came out flawless. The CuraEngine part is white, the slic3r part is green. When I use the CuraEngine, the brim never seems to adhere very well to the bed, and neither does the first layer of infill. And if it does adhere, a few passes later the extruder will catch it and all hell breaks loose. This is only with cura. If there's a way to correct this please let me know. An idea I had was to take the slic3r gcode and copy the brim and first layer to the cura gcode, that way I can get the slic3r adhesion with the cura precision. But I don't exactly know what in the slic3r gcode is the brim and what I need to remove from cura to get it there

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Re: Extruder feed motor stops after a certain feedrate?

Slicer is green, cura is white

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Re: Extruder feed motor stops after a certain feedrate?

Lasercigusa wrote:

Alright I'll take your advice! Now here's another question. I finally got my printer to print a part, but it looks like crap. The outer walls look kinda gloopy. I'll attach a pic. I sliced it with Slic3r, and that actually got it to stick to the bed. I prefer to use CuraEngine, I printed the first part with CuraEngine and it came out flawless. The CuraEngine part is white, the slic3r part is green. When I use the CuraEngine, the brim never seems to adhere very well to the bed, and neither does the first layer of infill. And if it does adhere, a few passes later the extruder will catch it and all hell breaks loose. This is only with cura. If there's a way to correct this please let me know. An idea I had was to take the slic3r gcode and copy the brim and first layer to the cura gcode, that way I can get the slic3r adhesion with the cura precision. But I don't exactly know what in the slic3r gcode is the brim and what I need to remove from cura to get it there


Are your temps and speeds the same in both Cura and Slic3r? I prefer cura my self. I like the top finish that only it seems to support. But so far I have had little luck getting it to work. It seems to change the z offset on the first layer and I just have not dug into it deep enough.

I used to use Cura host which was cura based of course with no issues but Cura host does not want to talk to this printer even with Repetier firmware installed. There seems to be something weird in the comm protocol that is not standard.

Back on topic, the temp looks to low and speed too high in the green part. Could also be over extrusion.

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.

15

Re: Extruder feed motor stops after a certain feedrate?

Could it be the speed too low and the heat too high? I'll take a look at cura. Any recomedations for cura settings?? When I put in your slic3r settings it worked great besides the rough edges

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Re: Extruder feed motor stops after a certain feedrate?

Lasercigusa wrote:

Could it be the speed too low and the heat too high? I'll take a look at cura. Any recomedations for cura settings?? When I put in your slic3r settings it worked great besides the rough edges

Its possible. What normally do is print the 20mm cal cube on thingiverse. It is small but has good surfaces for showing issues.  I can then dial in settings without wasting too much filament. I will play around with cura engine when I get home and let you know what I find. There is chance the filament could be poor quality as well but we will see.

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.

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Re: Extruder feed motor stops after a certain feedrate?

Okay I figured it out. Run the brim slow on cura. Then you can ramp up

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Re: Extruder feed motor stops after a certain feedrate?

How do I get Cura to form a skirt?

19 (edited by carl_m1968 2015-02-10 07:42:02)

Re: Extruder feed motor stops after a certain feedrate?

Lasercigusa wrote:

How do I get Cura to form a skirt?


It's under expert > expert settings.

By the way I just tested it and if you have Repetier firmware installed Cura Host 15.01 works and drives the machine real time. So you could use the complete Cura package now. I already like the finish better then any other host and I have done very few tweaks yet.

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.

20

Re: Extruder feed motor stops after a certain feedrate?

Okay I'll check it out! Did you ever find a conclusion of I can use the slic3r skirt and brim with the cura main fill??

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Re: Extruder feed motor stops after a certain feedrate?

Lasercigusa wrote:

Okay I'll check it out! Did you ever find a conclusion of I can use the slic3r skirt and brim with the cura main fill??

Cura allows both skirt and brim. They are in the expert settings..

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.

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Re: Extruder feed motor stops after a certain feedrate?

The brim on cura doesn't adhere as well for me as the slic3r brim does

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Re: Extruder feed motor stops after a certain feedrate?

For me at least