Thanks DC42. I don't know why it took me so long to find the problem, but it was actually the Z sensor moving slightly when the printer was carrying out the bed compensation readings. A dab of superglue fixed it! That said, I think it is time I carried out some updates. Is your Z probe board still available, and can you point me at a link for your latest firmware (and instructions) please? I amby rpbh99 - Ormerod
I have been using my Ormerod 2 fairly regularly for the last few years. Yesterday I needed a print that used most of the bed area. I am finding that the first layer does not seem to extrude as much PLA when the X value is greater than about 120. Instead of consecutive lines merging together, there is a gap between them. I had not changed any settings when this occurred and have done similar sizedby rpbh99 - Ormerod
Hi, Just checking. Doesn't anyone have any suggestions for me. It would be very helpful if I could get this to work. Thanksby rpbh99 - Ormerod
I have searched the forums but cannot find an answer that works for me. I have an Ormerod 2 which is still running the original 1.09 firmware. I am trying to pause and resume a print using G-Code. I can get the print to pause using M226 or M25, however neither of these run pause.g and so the print head does not move out of the way. After the pause I want to be able to continue by using the "Resumby rpbh99 - Ormerod
Hi. Looking through some older posts I saw this, where Treth was suggesting running the bed heater from a board driven via the external FET connection: and Has anyone made such a board, and, if so, what value components did you use? Thanksby rpbh99 - Ormerod
Sorry, I didn't explain properly. I should have said, "I don't know how to proceed after fitting the jumper". Meaning, should I just carry on as normal, or make any other mods, including your firmware. I have just taken delivery of a new heated bed, a MK2a, and the resistance measure 1.3 ohms, using the same meter as before, so I think my other heated bed must be too low. Fingers crossed for theby rpbh99 - Ormerod
Hi dc42. I really cannot say I understand what you mean by "PID for the bed has been supported for well over a year", as I am not an electronics guy. Whilst quite happy, and quite able, to solder components to circuit boards, which I have done often on Raspberry Pi projects, I don't honestly understand what is going on. BTW, I am (currently) not using your firmware, I am still on the original fby rpbh99 - Ormerod
Once again, Thank you. I have measured the voltage across the heated bed, and also the current flowing to the heated bed. The voltage starts at 11.63 v and settles to 11.68, changing from 0 to 11.68 as the heater switches on and off to control the temperature. The voltage across the input to the DUET is 12.11v with no heat load, and 11.93v with heat load. The current gave a rather frightening 1by rpbh99 - Ormerod
Hi. Much appreciate the response I have been getting. The Duet cannot be shorting to the case as, rather than using tape to insulate, I used a single piece of 1mm rigid plastic. I have also checked everything out again. Whilst it is working now with a jumper, I am concerned about a re-occurrence. I thought about using the on-board MOSFET to switch a 12 volt relay, thus removing most of the curreby rpbh99 - Ormerod
I have attached a photo of the damage. After using a jumper to replace the burnt track, the heater is working again, however I am concerned that the problem may re-occur, perhaps doing even more damage. I measured the resistance of the heated bed and get 0.8 ohms. The instructions state this should be 1.3 ohms, however, when building the Ormerod, I contacted Ian at RRP who said that 0.8 was OK.by rpbh99 - Ormerod
I have been using my Ormerod 2 for several months with no issues. Today the heated bed started to heat up as usual, then stopped. with no LED. I have discovered that the DUET 0.6 has burnt out a track to the right of the 12volt connector for the heater. Is there a repair for this, and what might have caused it? Clearly I cannot claim under warranty due to the closure of RepRapPro, so any help wouby rpbh99 - Ormerod