Hey Sean thank you for the information. I just ordered the Workbee from Bulkman 3d in China... will be here soon and am trying g to get a line on the wiring. This Video is " Most helpful" Thanks!!
I believe that was the case. I have switched to an acorn controller on this machine, but I think you are correct. You are likely best making v- ground.
@@seanmartin8770 just asking. I have seen people that prefer to Keep the circuit floating but typically I see the 24vdc bonded with ground for protection purposes.
+1 I love your videos, I'm thinking to order the Queenbee Pro, where most of the improvements made by user should be incorporated. I hope you have time to make some more video on CNC cause they're so good. Just subscribed! :-)
Sean Martin I ditched those drivers and only use DM556 now. A bit more money but can handle more power ( =does not work very hard with smaller motors) and the motors don’t whine (due to smoother shaping of the current curve). Some people do like whining noise of the steppers, though. Try one on Y axis, you may like them too :-)
Hi, first of all thanks you for this great video and all these explanations. I have a question about the TB6600 Stepper (supposing that you have the NEMA 17 type). Can you tell me more about the position of the microswitches on the TB6600 that are on? I'm a bit confused about which is the best configuration for the machine. Thanks in advance
I'm thinking about buying/building a CNC router in the denver metro area, do you have any recommendations for local c-channel, or is online the best place?
I do not know of anyone in Denver that Carries that material, but I have never looked. If I'm in a rush for those parts, I go through openbuilds. If I have a bit more time, I go to bulkman and it's usually a bit cheaper on their ebay store.
I have the bulkman set up, and am ready to program the VFD and finish my box. It ugly compared to this. Is there a reason why you couldn't adjust the provided power supply to the max rating of the Novusun controller of 32V? That would at least get you closer to your desired 36-40 volts wouldn't it? Would that work or am I asking for trouble with that?
Hello TB6600's run perfectly with 12 volts and no more than 2.5 amp loading. I only got trouble with TB6600's when I went to nema23 motors and 24 volt power supply. If you want to do it cheap as possible then use the PC power supply, the TB6600's and nema17 motors. Cheers
How is the controller working out for you? Looking at getting the one off of Banggood. Last time I had mu CNC running, I was using LinuxCNC through the parallel port. Does the Novusun work with Mach 4? Wondering if I should get 3 or 4. Thanks, Johnny
Cracking video. Very informative. I noticed you referenced a CNC knife cutter you had built. Would you have any more details photos etc of that as I am currently building something similar. Regards Andy T
Hi great video I am finishing my system from bulkman same as yours but I need help with my limit switches I am placing two on each axis but I need help with the wiring back to the control box can you help
What help do you need? I won't be in front of my machine until Tuesday. Did you review the bulkman wiring diagram or the diagram I put on thingiverse? If you are using them as limit switches, I would think you could just put both switches in parallel and it should work. It will read that it hit a limit if any of them are tripped. Unless you are wanting some different function from them. My shopbot PRS has every single limit switches on the same input.
I always put separate small power supply for the controller. This way the power for control is clean and the inductive load of the motors is not interfering with anything. And of course I can run the motors on 36, 48 or any other voltage. I also put separate power switches for each power supply. This is useful in troubleshooting or if the operator runs the machine into a limit switch and it needs to be moved by hand.
I appreciate the feedback. I am running the motors on a separate power supply but the mains are switched by the same switch. I am running into noise issues with the spindle. I've given up on trying to get the NVUM controller to operate that VFD. It sends a 10 to 0V signal instead of a 0 to 10V and it doesn't matter if you switch to active high or low. And feedback noise off that VFD is so bad it constantly results in lost communication over the USB. Maybe I'm missing something and you can enlighten me.
seanmphoto typically you connect 3 wires: 10v reference voltage, 0V/GND and the control signal/voltage. The control signal voltage should vary 0 to 10 in reference to GND. But this signal is usually generated as PWM, not as a real DC voltage. Maybe a small capacitor on that pin would smooth it out? Do you have access to oscilloscope? Even a cheap usb one should show you what is happening on that pin. In any case, a simple potentiometer on the VFD works perfectly well for controlling the spindle speed in non-production environment. But it is nice and useful to have the gcode turn the spindle on and off. That is easy to accomplish with any board, just map a spindle on/off signal in Mach3 to one of the output pins to drive a small relay (even better if you use relay board with opto coupler) that will short the remote start/stop pins on the VFD. You may have to fiddle with the VFD config a bit to make it run the spindle when contacts are closed rather than act on impulse (meaning first impulse=spindle on, next impulse =off) Last thing-ferrite chokes may or may not help, but are worth a try. If you are using shielded wires make sure the ground is “grounded” only at one end.
seanmphoto I found some posts related to this board suggesting the connection to VFD must be done with shielded cable with twisted wires inside the shield and everything must be properly grounded or EMI will mess things up.
Thanks for the great video nice case build I hadn't thought of using a computer case for the electronics so i think thats the path im going to go now! as for the VFD/ spindle hook up have a look at these videos as its the same control box and VFD: ruclips.net/video/amVFpWYV74U/видео.html and ruclips.net/video/ehlgOhsmGAI/видео.html. I'm thinking i'll get the 1500 x 1500 so will definatly be doing the whip fix of your last vid. what spindle did you get Air or water cooled ? 1.5, 2.2 Kw ? if the 2.2kw water cooled does the machine handle the weight? Thanks subed!
Great video. I’m considering getting the 1515 but have never built anything similar.
Look forward to more informational videos like this one.
Hey Sean thank you for the information. I just ordered the Workbee from Bulkman 3d in China... will be here soon and am trying g to get a line on the wiring. This Video is " Most helpful" Thanks!!
Do you have your 24v circuit “floating” I don’t see anything bonding V- to ground.
I believe that was the case. I have switched to an acorn controller on this machine, but I think you are correct. You are likely best making v- ground.
@@seanmartin8770 just asking. I have seen people that prefer to
Keep the circuit floating but typically I see the 24vdc bonded with ground for protection purposes.
+1 I love your videos, I'm thinking to order the Queenbee Pro, where most of the improvements made by user should be incorporated. I hope you have time to make some more video on CNC cause they're so good. Just subscribed! :-)
I noticed that you have a Y and a Y2 connection. Are you using the A axis board for the second Y motor?
That is correct.
Thanks Sean about to place order for Workbee 1010 this video will help a lot.
I am finding that the TB6600s tend to overheat. Make sure you use additional heat sink compound on those heat sinks and use a lot of ventilation.
@@seanmartin8770 Ok fair enough I also build PCs in my spare time and find cross flow vent setup with noctua fans works best.
Sean Martin I ditched those drivers and only use DM556 now. A bit more money but can handle more power ( =does not work very hard with smaller motors) and the motors don’t whine (due to smoother shaping of the current curve). Some people do like whining noise of the steppers, though.
Try one on Y axis, you may like them too :-)
great video!!
Fantastic
Hi, first of all thanks you for this great video and all these explanations. I have a question about the TB6600 Stepper (supposing that you have the NEMA 17 type). Can you tell me more about the position of the microswitches on the TB6600 that are on? I'm a bit confused about which is the best configuration for the machine. Thanks in advance
There are photos of those positions in the thingiverse link.
Here is a link to the thingiverse post: www.thingiverse.com/thing:3871671
I'm thinking about buying/building a CNC router in the denver metro area, do you have any recommendations for local c-channel, or is online the best place?
I do not know of anyone in Denver that Carries that material, but I have never looked. If I'm in a rush for those parts, I go through openbuilds. If I have a bit more time, I go to bulkman and it's usually a bit cheaper on their ebay store.
@@seanmartin8770 thanks! And thanks for putting up the videos
I have the bulkman set up, and am ready to program the VFD and finish my box. It ugly compared to this. Is there a reason why you couldn't adjust the provided power supply to the max rating of the Novusun controller of 32V? That would at least get you closer to your desired 36-40 volts wouldn't it? Would that work or am I asking for trouble with that?
I swapped to a 36volt. You can certainly try bumping the voltage on the 24volt.
Hello
TB6600's run perfectly with 12 volts and no more than 2.5 amp loading. I only got trouble with TB6600's when I went to nema23 motors and 24 volt power supply. If you want to do it cheap as possible then use the PC power supply, the TB6600's and nema17 motors.
Cheers
hello can you explain me how to connect the limit switch thx
How is the controller working out for you? Looking at getting the one off of Banggood. Last time I had mu CNC running, I was using LinuxCNC through the parallel port. Does the Novusun work with Mach 4? Wondering if I should get 3 or 4. Thanks, Johnny
So far I have not had significant problems, but have not run this machine a great deal.
Cracking video. Very informative.
I noticed you referenced a CNC knife cutter you had built. Would you have any more details photos etc of that as I am currently building something similar.
Regards Andy T
Go to the donek tools web site.
Thank you!
Hi great video I am finishing my system from bulkman same as yours but I need help with my limit switches I am placing two on each axis but I need help with the wiring back to the control box can you help
What help do you need? I won't be in front of my machine until Tuesday. Did you review the bulkman wiring diagram or the diagram I put on thingiverse? If you are using them as limit switches, I would think you could just put both switches in parallel and it should work. It will read that it hit a limit if any of them are tripped. Unless you are wanting some different function from them. My shopbot PRS has every single limit switches on the same input.
Essa controladora tem entrada para encoder incremental
I always put separate small power supply for the controller.
This way the power for control is clean and the inductive load of the motors is not interfering with anything. And of course I can run the motors on 36, 48 or any other voltage.
I also put separate power switches for each power supply. This is useful in troubleshooting or if the operator runs the machine into a limit switch and it needs to be moved by hand.
I appreciate the feedback. I am running the motors on a separate power supply but the mains are switched by the same switch. I am running into noise issues with the spindle. I've given up on trying to get the NVUM controller to operate that VFD. It sends a 10 to 0V signal instead of a 0 to 10V and it doesn't matter if you switch to active high or low. And feedback noise off that VFD is so bad it constantly results in lost communication over the USB. Maybe I'm missing something and you can enlighten me.
seanmphoto typically you connect 3 wires: 10v reference voltage, 0V/GND and the control signal/voltage.
The control signal voltage should vary 0 to 10 in reference to GND. But this signal is usually generated as PWM, not as a real DC voltage. Maybe a small capacitor on that pin would smooth it out?
Do you have access to oscilloscope? Even a cheap usb one should show you what is happening on that pin.
In any case, a simple potentiometer on the VFD works perfectly well for controlling the spindle speed in non-production environment.
But it is nice and useful to have the gcode turn the spindle on and off. That is easy to accomplish with any board, just map a spindle on/off signal in Mach3 to one of the output pins to drive a small relay (even better if you use relay board with opto coupler) that will short the remote start/stop pins on the VFD.
You may have to fiddle with the VFD config a bit to make it run the spindle when contacts are closed rather than act on impulse (meaning first impulse=spindle on, next impulse =off)
Last thing-ferrite chokes may or may not help, but are worth a try.
If you are using shielded wires make sure the ground is “grounded” only at one end.
seanmphoto I found some posts related to this board suggesting the connection to VFD must be done with shielded cable with twisted wires inside the shield and everything must be properly grounded or EMI will mess things up.
Why did you stop posting 😟
Sorry. The holiday season has been insane. Let me recover a bit and I'll post more.
I wondered the same thing, I'm just now building a 1500x1500 workbee and look forward to your input Sean!
hello
if he/it pleases you that is what the name of this article
novusun - and not very easy to contact unless if affects their seller rating....
Thanks for the great video nice case build I hadn't thought of using a computer case for the electronics so i think thats the path im going to go now! as for the VFD/ spindle hook up have a look at these videos as its the same control box and VFD: ruclips.net/video/amVFpWYV74U/видео.html and ruclips.net/video/ehlgOhsmGAI/видео.html. I'm thinking i'll get the 1500 x 1500 so will definatly be doing the whip fix of your last vid. what spindle did you get Air or water cooled ? 1.5, 2.2 Kw ? if the 2.2kw water cooled does the machine handle the weight? Thanks subed!