CoreXY axis don't move at printing
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Well Mouser is just an example of a reputable distributor. You'd have to find something similar locally.
The PSU I linked is suitable for a printer without a PCB heated bed.
This link will help you calculate how big the PSU needs to be: https://duet3d.dozuki.com/Wiki/Choosing_the_power_supply
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Your power supply voltage is probably dropping when the bed heater turns on. Is your bed heater definitely a 24V one; or if it is dual voltage, have you wired it for 24V not 12V?
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@dc42 said in CoreXY axis don't move at printing:
Your power supply voltage is probably dropping when the bed heater turns on. Is your bed heater definitely a 24V one; or if it is dual voltage, have you wired it for 24V not 12V?
Yes it drops at heating the bed. I asked you that in an other thread but you didn't answer I thought of this it doesn't matter.
Ok now I take a look at it but there are no hints if it's 12V or 24V. I can see that there are 3 points where you can wire it. I took 2 pictures for you.
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Can you measure the resistance between the two wires? What size is the bed heater?
Duet WiFi hardware designer and firmware engineer
Please do not ask me for Duet support via PM or email, use the forum
http://www.escher3d.com, https://miscsolutions.wordpress.com -
@dc42 said in CoreXY axis don't move at printing:
Can you measure the resistance between the two wires? What size is the bed heater?
I measured 3 ohm and the size is 330x330mm.
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@dc42 I have to correct my answer after using an other multimeter I get 1,3 ohm
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@aimrabbit said in CoreXY axis don't move at printing:
@dc42 I have to correct my answer after using an other multimeter I get 1,3 ohm
That's a 12V bed heater. As you are using 24V power, you need a 24V one. That explains why your PSU was shutting down.
Duet WiFi hardware designer and firmware engineer
Please do not ask me for Duet support via PM or email, use the forum
http://www.escher3d.com, https://miscsolutions.wordpress.com -
@dc42 said in CoreXY axis don't move at printing:
@aimrabbit said in CoreXY axis don't move at printing:
@dc42 I have to correct my answer after using an other multimeter I get 1,3 ohm
That's a 12V bed heater. As you are using 24V power, you need a 24V one. That explains why your PSU was shutting down.
Is there a way that the heating bed can be used with 24V? Or do I have to buy a new one and where can I get a good one in that size?
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From a little googling it looks like there is a Tronxy bed that is 24v compatible.
As for where you would be able to find it. I'm not sure about in Germany, but there's always gearbest. https://www.gearbest.com/3d-printer-parts/pp_314650.html
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@phaedrux said in CoreXY axis don't move at printing:
From a little googling it looks like there is a Tronxy bed that is 24v compatible.
As for where you would be able to find it. I'm not sure about in Germany, but there's always gearbest. https://www.gearbest.com/3d-printer-parts/pp_314650.html
Sorry but this is a 230x230mm heatbed but I need a 330x330mm. It's 10cm to small.
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@aimrabbit looks like you know the terms to google for then.
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@phaedrux said in CoreXY axis don't move at printing:
@aimrabbit looks like you know the terms to google for then.
It's not that I'm tried to find one. But I only get undersized heatbeds so that's why I'm asking but if no one have an idea I have to find an other solution. And I'm don't asking just for fun... I'm asking because I'm stuck with the VIN problem from the beginning.
So I don't like your sacasm. -
My apologies, I didn't intend to sound sarcastic. It was just that a quick google search turned up several options in multiple sizes.
Here's a 330x330 24v: https://www.aliexpress.com/item/3D-Printer-MK2A-MK3A-Aluminium-Heatbed-Thermistor-Build-Surface-Sheet-300mm/32948965327.html
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@phaedrux said in CoreXY axis don't move at printing:
My apologies, I didn't intend to sound sarcastic. It was just that a quick google search turned up several options in multiple sizes.
Here's a 330x330 24v: https://www.aliexpress.com/item/3D-Printer-MK2A-MK3A-Aluminium-Heatbed-Thermistor-Build-Surface-Sheet-300mm/32948965327.html
Wow thank you so much I'll go and order it right now! Thank you! I found nothing and thought I waste all my money.. I realy appreciate your help. I must order it... THANKS!
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@phaedrux said in CoreXY axis don't move at printing:
My apologies, I didn't intend to sound sarcastic. It was just that a quick google search turned up several options in multiple sizes.
Here's a 330x330 24v: https://www.aliexpress.com/item/3D-Printer-MK2A-MK3A-Aluminium-Heatbed-Thermistor-Build-Surface-Sheet-300mm/32948965327.html
I bought now this one https://www.roboter-bausatz.de/833/mk2a-heizbett-300x300-mm because the one from aliexpress would take nearly one month to be send to me. But with your link I got the right model and found a lot of matches. Big thanks.
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Sorry for not showing back for two weeks but I had got a lot of work to do.
What I can say about this problem. After I've got my 24V heater bed, the VIN is not decreasing anymore.
But now I got another problem which I realy not understand what to do and why it's causes.
At the beginning everything is fine and it's printing realy well but then after maybe 3-5 minutes the filament don't get through the hot end - if I pull it a bit back ( 1cm ) and then push it back in it will resume printing. What could that be and how can I fix this issue?
