Hi everyone, We're a switching power supply manufacturer in Taiwan which established in 1995.

Hi everyone,
We’re a switching power supply manufacturer in Taiwan which established in 1995. We know 3D printing has been on cutting edge in technology. We’re also interested in this industry, can anyone share information that how much power rating, current and voltage are the most popular requirement? Thank you.
http://www.ultralevel.com.tw

9 amps and 12 volts for a small one. The big ones like Makerbot would draw more

The heated build plattform is in the 100-200 W range, add to that one or two extruders around ~40 W and 4-5 steppers up to 1.75 A RMS and you have the most important parts in terms of power use. 12 V is the most common, but 24 V is becoming popular as well. Low audible noise is good (fan less if possible). Remote control (from a uC) is seldom seen afaik, but would perhaps be a welcome addition. Low price is perhaps more important. A 12 V, 30 A psu from alixpress goes for ~$30 including shipping.

Motors run better on 24v (and extruder + bed heat faster) but 12v fans, LEDs etc are much easier to source. It would be useful to have a PSU with both 12 and 24v rails optimized for 3D printers. Many electronics boards can handle alternative motor supply. Also, it’s nice to be able to turn the PSU off from software - many PSUs can do this, but do so using very non-standard tiny pins and connectors. PSU fans can be loud and would be better if they’ weren’t (bigger slower fans)

Having the power supply complain because there is a lot of load on the 12V and little or none on the 5V is not a good idea. Please allow 5V, 12V and 24V to not be affected by the others.

It’s very much appreciated for all of your comments. Now we have further understanding of 3D printer. It is no doubt the popular voltages are 12V and 24V which is good to know because those are our standard voltages in production. We look forward to getting into this innovative industry.
Thank you all for sharing the helpful information with us.

Lena

@Ultra_Level_Tech_Co According to the driver circuits, you may still need 3.3v or 5v. A number of driver boards are atmega or similar and can run off of usb.

@Ultra_Level_Tech_Co I just want to say that it’s really cool to see a supplier like yourselves asking the community what it wants/needs in a non-spammy way that benefits everyone. As a moderator I see a lot of companies just wanting to get on the 3D printing gravy train and abusing this community. Thanks for “doing it right”.

@Sanjay_Mortimer Thank you very much for your kind comment. We’re not interested in spamming, instead, to acquire the knowledge of this industry is more important to us. We really appreciate everyone’s information here. :slight_smile: