The way people attack others here for perceived slights is astounding. Given that being an AC or DC motor means nothing to you; it’s the same thing, it’s a weird hill to fight on. It’s an electronics discussion relevant to understanding how it works and modification, and makes no difference in everyday use. Yet there are 3-4 replies jumping in excitedly to a conversation not relevant to them, and that they know nothing about and haven’t participated in thus far.

I’ve found the datasheet now, and if Dave wanted to clarify he could easily give the datasheet and the datasheet for the gearbox from chiaphua. I’m sure he didn’t need the sycophantic stuff in any event.

To conclude: It is a dc motor, but weirdly labeled. The HZ value doesn’t belong there at all as DC doesn’t oscillate. The reason for the extra large resistor and huge capacitor is because the bridge would rectify too high, so it needs toned down.

    Gagaryn Aye thanks, found the datasheet and got there in the end. I assume the last bit is a cost thing. The standout feature of this one seems to be its relative size although that does come with the need for more gearing caveat. I’ll leave datasheet and supplier here for completeness.

      i was merely supplying you the pics i had, to help

      the ‘wow’ was the fact you were kinda arguing with the guy that helped to design it, fwiw i dont think its that motor above, im not really sure if i can say more, so i wont,

      Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -

        capuchin The way people attack others here for perceived slights is astounding.

        I did not attack anybody, so stop creating a false narrative. You might not like the fact that I corrected you….get over it. You come onto the forum announcing your views like the resident expert……when you stick your head above the parapet etc

        https://www.suddencardiacarrestuk.org/2024/02/thank-goodness-for-madeira-cake/

            capuchin The HZ value doesn’t belong there at all as DC doesn’t oscillate. The reason for the extra large resistor and huge capacitor is because the bridge would rectify too high, so it needs toned down.

            The Hz value is important because due to the crude rectification the motor effectively runs on ‘pulsed’ DC - there is no smoothing. The big cap is an X2 that is simply there for noise suppression.

                that motor is from an old second hand white niche i bought a year or so ago, no ideal on age, the the brush dust blew out.

                Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -

                Really sad how much arguing and fairly pointed comments are made on this forum. Seems like every thread I open there a disagreement of done sort somewhere. It’s great that everyone is so knowledgeable but I can see how it could be seen as hostile.

                I think there’s a risk of alienating really great people if it hasn’t happened already.

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                  HarveyMushman thats what the hide/ignore button is for, i cant read half of this thread, infact forum as i hide quite a few users,

                  Decent De1pro v1.45 - Niche Duo - Niche Zero - Decent is the best machine ever made -

                    HarveyMushman Really sad how much arguing and fairly pointed comments are made on this forum. Seems like every thread I open there a disagreement of done sort somewhere. It’s great that everyone is so knowledgeable but I can see how it could be seen as hostile.

                    I think there’s a risk of alienating really great people if it hasn’t happened already.

                    It’s the world’s friendliest coffee forum I’m told. That seems to be reliant on visitors respecting the “hierarchy of knowledge” and refraining from independent thought. If you obey those unwritten rules, all is fine. Break them at your peril - the resident internet hard man doesn’t take much provocation to swing his handbag. :-)

                        Cuprajake Niche have confirmed that’s the correct motor. Thank you for the pics of yours!

                        Gagaryn more for brush arcing from the rectification I’d have thought. The ceramic labeled VR2 would/could be for noise suppression?

                        dfk41 Nope, you added and corrected nothing.

                                Gagaryn It’s really frustrating. An echo chamber helps nobody.

                                @Cuprajake You shouldn’t have to do this though. If people can’t contribute positively and civilly in a friendly and respectful tone, why are they here?

                                  capuchin more for brush arcing from the rectification I’d have thought. The ceramic labeled VR2 would/could be for noise suppression?

                                  No - VR2 is a MOV - a metal oxide varistor placed where it is to provide protection against power surges. This along with the X2 cap are standard components for power inlet protection. If you are modding, leave them in place.

                                      dfk41 You do know that Dave effectively designed the Niche Zero?

                                      No, I helped with testing and suggested some mods to the Zero…but I do have a good appreciation of how it works, and suggested a component or two to be added to the circuit board.

                                      Contact me

                                        Gagaryn No - VR2 is a MOV - a metal oxide varistor placed where it is to provide protection against power surges. This along with the X2 cap are standard components for power inlet protection. If you are modding, leave them in place.

                                        I had the MOV added…for other reasons as well.

                                        Contact me

                                            Oh and the motor is custom, as is the gearbox….

                                            However, lets all remain friends, my only concern is not to be right, but to ensure people don’t attempt projects that will damage their grinder, or themselves, through a misunderstanding of it’s basic technologies..

                                            Contact me

                                            DavecUK I had the MOV added…for other reasons as well.

                                            Can you elaborate on this? From what I can see, in a non fault situation that MOV is doing exactly nothing. If it receives voltage over its rating it redirects back to neutral. I’m struggling to understand what additional purpose it could have? What am I missing? How was over-voltage protection implemented before the MOV was added?

                                                Gagaryn It will cut power to the motor in an overload situation (e.g. burr jam) and then self reset.

                                                Contact me

                                                  HarveyMushman

                                                  It’s really only one repeat offender.

                                                  His conduct has brought down the overall tone of this forum but he seems to be a protected species. He would not get away with his personal insults on other forums and evidence of that is to be found in his suspension or banishment from multiple forums / YT channels.

                                                  The ‘ignore’ feature is your friend Harvey.

                                                  If you find someone who is repeatedly denigrating others, just click that person’s profile and you’ll find the ignore button.

                                                  The whole forum experience has become much more enjoyable since I clicked on it. I don’t have to read his personal attacks on people and if he decides to lash out again when he reads this post, I won’t even see it.

                                                  (No problem with disagreements but no need to insult people personally.)

                                                      tompoland His conduct has brought down the overall tone of this forum but he seems to be a protected species. He would not get away with his personal insults on other forums and evidence of that is to be found in his suspension or banishment from multiple forums / YT channels.

                                                      Please use the report function Tom…I and other mods don’t monitor every post or always judge how others may perceive them. Posts like this wouldn’t be tolerated either on other forums.

                                                      https://coffeetime.freeflarum.com/d/27-forum-guidelines

                                                      In true HB style I am now locking this thread as it has descended into an non useful discussion.

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                                                        DavecUK locked the discussion .