How about a power supply that actually has enough capacity to run a long job without overheating?
You claim to have 12,000 owners. Have they all replaced their power supplies with adequate ones, or do they print only short jobs?
Art
Hi artcominio,
I have been running my printer on the original power supply for almost a year now.
Never had a thermal problem, not even with >15hr jobs.
Only real problem is that I can’t get the bed temperature over 75°C. Which might improve ABS printing as higher bed temperatures are adviced.
But that’s a voltage problem and can be solved by using an extra 24VDC power supply for the bed. No real need for that so far.
Regards,
BigDee
BigDee,
I’ll be sending my power supply back to Velleman. I already purchased a 15V 10Amp switching regulator supply because I can’t wait the weeks or months it will take to get a replacement. I refuse to buy a new Velleman supply on eBay because I believe they need more capacity than 100 Watts. You got lucky with your supply. Even though I purchased a new kit, my power supply had obviously been used. It would not surprise me if I got one that was returned as having an intermittent temperature problem, and then was recycled when some tech took the easy way out and didn’t test it under load.
I know my supply experiences thermal shutdowns because I can observe the blue light go out, then back on. At the same time, the LED light ring above the extruder blinks. It is so obvious that the supply shuts down under load that I didn’t even bother to hook up my DVM and measure the current draw.
On a different subject, I cannot get quality prints at 0.25mm using the Velleman defaults. How extensively did you need to tweak parameters before you were happy with the results at .25mm? Perhaps I should ask, is the printer capable of producing decent prints at 0.25mm or am I deluding myself? I can print at 0.35mm and 0.4mm, but at those resolutions there are real problems with overhangs and bridges.
Is this printer any good at all or should I cut my losses right now? Do you get decent results at decent resolutions? Are you using Velleman default parameters, or did you roll your own?
Regards,
Art Cominio
hello,
Regarding the power supply, i haven’t had any problems with it myself.
i use the original power supply, and the longest print so far was 36 hours.
Regarding the quality, i print at 0.15 mostly.
BUT, i have moddified the hardware of my printer:
- Z axis motor support.
- X and Y axis belt change to GT2.
- E3DV6 hotend.
- addapted the heatbed to reach higher temperatures.
and i dont use repieter / slicer!
the software is use is simplify3d, and it slices way way better then slicer!
i reccomend you do above changes, it takes about 2 hours and a few parts you need to order.
but the print quality is brilliant.
[quote=“soundguy”]hello,
Regarding the power supply, i haven’t had any problems with it myself.
i use the original power supply, and the longest print so far was 36 hours.
Regarding the quality, i print at 0.15 mostly.
BUT, i have moddified the hardware of my printer:
- Z axis motor support.
- X and Y axis belt change to GT2.
- E3DV6 hotend.
- addapted the heatbed to reach higher temperatures.
and i dont use repieter / slicer!
the software is use is simplify3d, and it slices way way better then slicer!
i reccomend you do above changes, it takes about 2 hours and a few parts you need to order.
but the print quality is brilliant.[/quote]
Hello, soundguy,
What gt2 pulleys are you using (20 or 16 teeth)? Could you post few pictures of your belt modification? Thanks
[quote=“Linas_capas”][quote=“soundguy”]hello,
Regarding the power supply, i haven’t had any problems with it myself.
i use the original power supply, and the longest print so far was 36 hours.
Regarding the quality, i print at 0.15 mostly.
BUT, i have moddified the hardware of my printer:
- Z axis motor support.
- X and Y axis belt change to GT2.
- E3DV6 hotend.
- addapted the heatbed to reach higher temperatures.
and i dont use repieter / slicer!
the software is use is simplify3d, and it slices way way better then slicer!
i reccomend you do above changes, it takes about 2 hours and a few parts you need to order.
but the print quality is brilliant.[/quote]
Hello, soundguy,
What gt2 pulleys are you using (20 or 16 teeth)? Could you post few pictures of your belt modification? Thanks[/quote]
hello,
there issent much to show.
i used the 20 teeth pulleys.
and i just swapped them out with the original ones.
don’t forget to change the firmware.
annnndddddd a great thing is to use the springs out of these things: google.nl/search?q=was+knij … B600%3B317
and tightnen the belt with em !!
i have a great resolution with my printer now.
[quote=“soundguy”][quote=“Linas_capas”][quote=“soundguy”]hello,
Regarding the power supply, i haven’t had any problems with it myself.
i use the original power supply, and the longest print so far was 36 hours.
Regarding the quality, i print at 0.15 mostly.
BUT, i have moddified the hardware of my printer:
- Z axis motor support.
- X and Y axis belt change to GT2.
- E3DV6 hotend.
- addapted the heatbed to reach higher temperatures.
and i dont use repieter / slicer!
the software is use is simplify3d, and it slices way way better then slicer!
i reccomend you do above changes, it takes about 2 hours and a few parts you need to order.
but the print quality is brilliant.[/quote]
Hello, soundguy,
What gt2 pulleys are you using (20 or 16 teeth)? Could you post few pictures of your belt modification? Thanks[/quote]
hello,
there issent much to show.
i used the 20 teeth pulleys.
and i just swapped them out with the original ones.
don’t forget to change the firmware.
annnndddddd a great thing is to use the springs out of these things: google.nl/search?q=was+knij … B600%3B317
and tightnen the belt with em !!
i have a great resolution with my printer now.[/quote]
What print speeds and acceleration values are you using? Don’t you get surface quality issues like I am getting? I did basically everything the same, as you did.
Here are some photos of this issue:
onedrive.live.com/?cid=C6EFB474 … 645C%21105
Not as much as you do…
for what i understand is that the problem that you have is called “ghosting” ?
it’s caused because this printer moves it’s printing bed instead of the head.
the mass of the printing bed is ofcoarse way heigher then that of just the head.
i decreased my acceleration bij 30% and the speed i print at is 55mm/s
i print at 0.15.
what are your settings ?
maybe we could both try the same print, with about the same settings, and see what the differences are ?
ps: do you use cooling with pla ?
edit:
i see you still have some small Z-axis wobble.
i just remembered that i removed the top bearing on my z spindle. did you try that ?
My acceleration values are left default, print speed 35-45 mm/s, layer height 0.2mm.
Regarding Z axis wobble, i havent removed the bearing. I have also ruined my flex coupler, waiting for new ones to come.
About the cooling, after replacing my hotend to E3d v6, my previous fan nozzle did not fit anymore, so for now i replaced it with original velleman fan. I will print a new nozzle, change my flex coupler and see what rezults would i get.
I am very busy this week with my studies and work stuff, cant get my hands on the printer. I will look more into those things on Monday.
Could you please give me your email or skype, so we could chat more efficient? Thanks
for some reason i can’t seem te find a way to send you a personal message.
My skype ID is soundguytje.