Ormerod 2 PSU output voltage

Hi Everyone

I'm new to printing and to ormerod but I have an issue. I have built my machine and initially it worked fine. Fans running as they should be and it was extruding as I expected. However then I switched it off and then back on. But this time the extruder fan worked for a few seconds then died. I checked the wiring which was fine but then I checked the voltage on the fan wiring loom and the input voltage on the duo but the voltage was 25v and I thought it was supposed to be 12v. I checked the voltage on the PSU output and that was 25v. There is a small screw to adjust voltage on the psu.

Has anyone else experience this before? I have emailed support but unfortunately they haven't replied.

Many thanks in advance

Jas

Sounds to me that a component in the voltage regulation circuitry of the PSU has failed.

---

Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

Thanks should I fiddle with the voltage screw or avoid this?

Jas

With the power off, you could try turning it through its whole range a few times just in case it has developed a bad contact between the slider and the track. Then put it back to about where it was before. But I expect the problem lies elsewhere.

---

Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

Thanks just tried that but lowest voltage is 21v so it must be the PSU that has died. Shame since its less than a week old. And has only been powered on for 1 day!

Many thanks for your help

Have you been sent a 24V PSU by mistake? What does the label on the PSU say?

Edited 1 time(s). Last edit at 10/12/2015 01:28PM by dc42.

---

Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

The good news is that it is unlikely to have damaged anything except the fan.

Dave

There is another post from a different user on the General section of these forums who seems to be having a very similar problem. Makes me wonder whether one of the Chinese suppliers has mixed up their 12V and 24V PSUs.

---

Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

Where did you get your Ormerod?

---

Slicer: Simplify3D 4.0; sometimes CraftWare 1.14 or Cura 2.7
Delta with Duet-WiFi, FW: 1.20.1RC2; mini-sensor board by dc42 for auto-leveling
Ormerod common modifications: Mini-sensor board by dc42, aluminum X-arm, 0.4 mm nozzle E3D like, 2nd fan, Z stepper nut M5 x 15, Herringbone gears, Z-axis bearing at top, spring loaded extruder with pneumatic fitting, Y belt axis tensioner
Ormerod 2: FW: 1.19-dc42 on Duet-WiFi. own build, modifications: GT2-belts, silicone heat-bed, different motors and so on. Printed parts: bed support, (PSU holder) and Y-feet.
Ormerod 1: FW: 1.15c-dc42 on 1k Duet-Board. Modifications: Aluminium bed-support, (nearly) all parts reprinted in PLA/ ABS, and so on.

Thank you for all the replies. It turns out I had my multimeter set to ac not dc so basically I'm an idiot! But I did explain this to the people at reprap pro when I bought it!

Thanks

Oh.... I wear that Hat allot...... Join the Club.....

Not sure if the Ormerod 2 is still using those 'orrible 6 pin connectors that came with the Ormerod 1, but check the 'DC' voltage (sorry couldn't resist) there first..... I cut my connector out ages ago as they aren't very good.
At one time my machine kept failing for no good reason. It turned out to be a duff connection in THAT connector on the Thermister wires.... I removed my connector totally after that, and never had any problems.

---

Please send me a PM if you have suggestions, or problems with Big Blue 360.
I won't see comments in threads, as I move around to much.
Working Link to Big Blue 360 Complete

I replace the connectors with the tycoAMP clone as I had similiar problems. At me it was the fan connection. The tycoAMP version of this connectors is slightly better. It also turns out that it is needed that the crimps were done with a good tool. So I decided to keep this connector for my Ormerod 2. At least you have some advantages using the connector.
But I have a problem with my Ormerod 1 and the thermistor of the heated bed: It does not withstand the temperature. (It is the same type of plug).

---

Slicer: Simplify3D 4.0; sometimes CraftWare 1.14 or Cura 2.7
Delta with Duet-WiFi, FW: 1.20.1RC2; mini-sensor board by dc42 for auto-leveling
Ormerod common modifications: Mini-sensor board by dc42, aluminum X-arm, 0.4 mm nozzle E3D like, 2nd fan, Z stepper nut M5 x 15, Herringbone gears, Z-axis bearing at top, spring loaded extruder with pneumatic fitting, Y belt axis tensioner
Ormerod 2: FW: 1.19-dc42 on Duet-WiFi. own build, modifications: GT2-belts, silicone heat-bed, different motors and so on. Printed parts: bed support, (PSU holder) and Y-feet.
Ormerod 1: FW: 1.15c-dc42 on 1k Duet-Board. Modifications: Aluminium bed-support, (nearly) all parts reprinted in PLA/ ABS, and so on.