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20-02-2017 #1
6000 rpm, 2,2kW, = 3.5Nm, too small
I am struggling why position accuracy is so low.
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20-02-2017 #2
I believe this is servo driven spindle, not direct drive but belt and there must be gear ratio also. So 2kw servo is not 3Nm. I remember somebody was looking at building a mill and had more info about the servomotors that go with it. I think it also could be ordered 10k RPM
PS. Ok, i see VFD in the enclosure and 4 servo drives. So probably this is a cheaper version with direct HF spindleLast edited by Boyan Silyavski; 20-02-2017 at 01:51 AM.
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20-02-2017 #3
Hi Cousin, thanks for you reply. I contacted a guy in Croatia who has already the same machine from same manufacturer and he is satisfied with the performance and he say that is working with 0.01 accuracy.
Do you thing this mill is better deal http://polymeta.bg/?page=newmach&cat=46&pid=185
Price is almost same, but i noticed that this is 800kg and the chinese one is 1300 which make me thing the chinese one is stiffer. You wanna say that if i decide to buy the chinese one to contact your agent about the transport?
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20-02-2017 #4
This one has slower spindle speed. Maybe have to speak with them about that. In reality you could add with a bracket Watercooled 3kw spindle / 500 euro with VFD/ or smaller and cover it all. Ene 0.8kw will be ideal. High speeds you will need for the small bits. Many people do that, as its the cheapest solution. No toolchanger in this scenario. Price is without VAT, note that.
The agent could find who makes that really, may be find it near her,etc. It really makes a difference when contacting Chinese if an agent there does that.. And you dont have a wait a week when you need to know sth. You pay her a fee but you are sure that the people you buy are real and that you buy at good price. I can put you into a contact with her.Last edited by Boyan Silyavski; 20-02-2017 at 12:47 PM.
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20-02-2017 #5
Its ok, let me have her contact.
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20-02-2017 #6
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18-10-2017 #7
Hi there Boyan how are you?
I have a Chinese 3 axis cnc6040z with the black box I bought a while ago,I have removed the motion controller drive board that came with the machine it has no proper documentation it is in Chinese and it is crap, comes with USB CNC software v2.10 with activation key on cd including driver file.I would like to run Mach3 or 4 and would like to know if the NX-USB 4 axis USB motion card is a full plug and play type no extra cards needed and also on the mach3 plugin site they have a plugin driver,would this plugin be good for my cnc6040 machine or do i need to do other things?? sorry for all the questions, Im a newbie and need information ? Thank you
!sorry if it is posted in the wrong placeLast edited by Schematicsman; 18-10-2017 at 08:14 AM.
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07-11-2017 #8
Hi,there Boyan i would like to know if this AKZ250 Mach3 USB Motion Card can be connected with the Nowforever VFD 400HZ i have and drive the 3x (57HD5401-14S) stepper motors that came with machine or do I need 3 similar to these DM542A stepping stepper motor drivers per motor and if I can go with this setup what stepper motor drivers would be best for running the 3A ones I have? thank you
***[The Stepper Motor Info is:
Model: 57HD5401-14S
1.8 deg 6.6v 3.0A N1605
17kg/cm=1.6671305 Nm]
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06-06-2022 #9
Hello.
I'm buying CNCmill from china, but I'm sceptic about, quality, services,. installation of machine and production launch ..etc. Can you please give me contact from Croatian guy, who already have mill machine from china? I’m from Slovenia, so it’s almost my neighbour :)
Thanx,
Regards, Rudi
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