Spindle Motor Kit,500W High Speed Air Cooling Brushless Spindle Motor ER16 12000RPM+Motor Driver+ Motor Controller,DC 48V,Engraving Machine Parts https://www.amazon.com/dp/B079FL7BM6/ref=cm_sw_r_other_apap_wXLMjsfImZkNO
I used this one
Hey Ryan, could you tell me the dimension from that red line to the center of the conduit on the 23.5mm burly? I’m trying to find a reference point that I can use to align all the leadscrews on all the parts.
According to my unofficial measurements off the STL files, it’s about 40.55 mm from the center of the arc to the surface you’ve highlighted.
Thanks, just didn’t know if the center of that pipe is the center of that arc.
I also checked that if the bearings are concentric around that arc and separated by 120 degrees, they just meet the two lower surfaces, so that further supports the assumption that the tube is concentric with the cylindrical portion of the part.
%translate([-90.61, -110, 0])
import("C-Roller.STL");
cylinder(d=27.1, h=0.5, $fn=240);
for (a=[0, 120, 240]) rotate([0, 0, a])
translate([23.5/2, -3.5, 0])
%cube([22, 7, 1]);
translate([40.55488, 0, 0])
cube([20, 20, 1]);Alrighty, thanks. I just finished the designing all the parts, I’ll probably post a few pics when I start printing.
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I’m thinking about buying this one. How would I display rpm from it? The driver has 5 ports for hall effect.
No sure I have not been worried about the speed to much not sure if it’s a function of the spindle or just the driver and just needing a readout attached or both?
Yeah. Might be way easier and more useful to just buy a laser tachometer or something like that.
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I think I figured out what I’m going to do. I’m going to build a arduino ir tachometer like this one. If I build one I might be able to work out spindle speed control through gcode. I can do that if I can figure out how to pull the required rpm from marlin and send it to that arduino which will control the speed through the ports on the bldc driver. What I don’t know is how to get the required spindle speed to the control arduino, and how to get the speed to the bldc driver because I’m pretty sure that takes a 10V voltage. On the product page it says speed control “connect to external 10VDC voltage.” On the leadscrew part of this, a bunch of parts got delivered yesterday and I probably will start printing soon. I probably should’ve posted this in the builds section as it’s becoming more and more about my build.
There is some source code for just that floating around and there is a kit in the shop to get you started.
Sweet, thanks.
Just made the lead screw nuts. These things came out super well.
Had my first real fail on the mill today too. Didn’t know you had to go slower with a downcut endmill. Clearly you do.
I will probably start printing tomorrow, I’m almost done with the designs, I couldn’t use my computer for a week or so cause I was away, but now I can.
Can the Primo core fit on the Burly? The only problem I would see is that the pipes are different lengths from each other. After the mill failed today, it had a lot of slop in the core. I think all the bolts are many points of failure and the primo core will be way better being fewer pieces. I’ve already designed all the leadscrew parts to work with the burly, but none of them change the core.
I also drew up a circuit for the speed control. It’s kind of scuffed. I’m not very good at electrical, but I think this is pretty good.
That 0-10v pwm to voltage thing is [this](KNACRO PWM to Voltage Module 0% -100% PWM Converted to 0-10V Voltage Suitable for Signal Interface Switching for PLC or Other Industrial Control(PWM-to-Voltage) https://www.amazon.com/dp/B07GSTBTBZ/ref=cm_sw_r_cp_api_i_IY0nFbN0N0P29). Pretty sure that will work. The only thing I don’t know how to do is get the spindle speed from the ramps to the arduino nano. I understand I have to map the M3 to the fan or something like that but I have no idea how to wire or script. The rest of the scripting is easy, its pretty much just if loops.
Should I put my next post about this in the builds section as to not create clutter? This is no longer about just leadscrews but more of my whole mill.
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I figured out how to get the spindle speed from the ramps to the control arduino. I’ll use a 0-5v pwm to voltage, and I’ll feed it the pwm signal for spindle speed. The speed control arduino will then read voltage. All I have to do now is figure out the firmware. I want to use the fan speed control pins but don’t want to use M106. Anyone know how I can map M3 to the fan speed control pins on ramps?
What power supply do you use to drive that spindle. I can’t find one at 20A.
Regulated Switching Power Provide, 48V 12.5A Universal Regulated Switching Power Provide for Stepping Motor Driver AC110-260V Input to DC48V 12.5A Output
Currently unavailable
We don’t know when or if this item will be back Regulated Switching Power Provide, 48V 12.5A Universal Regulated Switching Power Provide for Stepping Motor Driver AC110-260V Input to DC48V 12.5A Output
Huh. And that one works? The spindle says it draws 15A
Yep closest I could get works great so far about a year now may lose something with it but no problems so far
Theres a good chance the amazon product page is wrong. It has inconsistencies like a max spindle speed of 24000 and 12000
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YI MEI DA Switching Power Supply 48V 10A 500W Power Adapter Driver Transformers 220V 110V AC SMPS for CCTV, Radio, Computer Project Led Strip Modules Light. https://www.amazon.com/dp/B07W4HLZK4/ref=cm_sw_r_cp_api_i_sFyqFb20G277E
Do you think this would work?