Air Pump 220v

With a 1/2 lead screw what is the optimal steps for the stepper motor driver 1/16, 1/8, 1/4 etc

We typically use a 1/4 microstepping for lead screws, but you want to determine the microstepping only after you determine what resolution you want on that axis of the machine. The formula: Resolution is steps per inch or steps per milimeter I will go over this using steps/inch: steps = motor steps x driver microstepping inch = the amount of travel with one full stepper motor rotation In the case of our 1/2" 5 start 10 TPI lead screw, the axis will travel .5 inches with one stepper motor rotation. Let's use 1/4 microstepping (4 microsteps for each stepper motor step) Therefore: (200 steps x 4) / .5 inches = 800 steps / .5 inches = 1600 steps/inch Now let's use 1/2 microstepping (2 mistrosteps) (200 steps x 2) / .5 inches = 400 steps / .5 inches = 800 steps/inch Remember that increasing microsteps, the torque is also reduced, but the smoothness from the motor is increased.

What is the difference between 18/8 and 18/10 stainless steel?

The first number is the amount of chromium that is contained in the stainless, i.e., 18 is 18% chromium. The second number is the amount of nickel, i.e., 8 stands for 8% nickel. So 18/8 means that this stainless steel contains 18% chromium and 8% nickel. 18/10 is 18% chromium and 10% nickel. The higher the numbers the more corrosion resistant the material. 18/0 is a misleading designation. Both 18/8 and 18/10 contain nickel and are part of the grade family "300 series" stainless. 18/0 means that there is 18% chromium but zero nickel. When there is no nickel the stainless grade family is the "400 series". 400 series are not as corrosion resistant as the 300 series and are magnetic, where the 300 series are non-magnetic.

What is the acceleration limited to with the laser tube vertical?

With our new Laser/Spindle Combo Head for our greenBull, we kept the acceleration the same and had no issues at all with the tube (regarding chipping breaking etc.). So there is no specific limit to the machine (take into affect the weight of your gantry and the overall output of your motors), but here is the setup we have now: (with a custom greenBull gantry (4' x 8')) X-axis SPI: 910.069 Vel: 400.02 Acc: 12 Y-Axis SPI: 911.023 Vel: 400.02 Acc: 18 Z-Axis SPI: 1632.653 Vel: 79.98 Acc: 5

what coolant flow do i need for liquid cooled spindle's

If a heat exchanger is being used, you should be fine with 45 liters per hour (L/h). A heat exchanger is a radiator that the water will flow through that typically has a fan to provide convection to transfer the heat off of the fins of the radiator. Our pumps have a flow rate of around 400-800 L/h. Additional Information: Here is the water cooling kit we have available for spindle cooling. https://buildyourcnc.com/item/pneumatic-hydraulic-spindle-inverter-cooling-water-pump-reservoir-fan-radiator-g14fittings-silicone-tubing

On the Book Build: I'm changing the 13TPI 1/2" lead screw with the 1/2" 10 TPI Acme screw with the anti backlash nut. This is for the Z axis only. What should I know about installing it and what are the numbers I need to plug into the motor tuning area.

The settings that will have to be change will be your steps per inch in motor tuning (mach 3), or settings/axes(planetCNC). But we do not have the actual numbers/specs that will fit your 10 TPI 5 start lead screw, here is a tutorial video which explains how to get the exact numbers you need! (https://www.youtube.com/watch?v=6vY26CIrVwg). Here is a default setting that you might be able to tune and adjust accordingly: 1600 steps, accel 400.02, velocity 5.

Is stainless steel magnetic?

There are several "types" of stainless steel. The 300 series (which contains nickel) is NOT magnetic. The 400 series (which just contains chromium and no nickel) ARE magnetic.

IS IT OK TO LEAVE THE VACUUM PRESSURE CONTROLLER PLUGGED IN ALL TIME WHEN PUMP SWITCHED OFF?

I don't see anything in the datasheet for the relay that indicates an overheat condition. While the relay is engaged, the power consumption is 400 mW and I don't believe this is enough to raise the temperature faster than the heat dissipation from the metal on the leads through convection or radiation outside of the rated temperature working ranges providing that you maintain an ambient temperature range within -40�C to 85�C (with no icing or condensation). http://www.omron.com/ecb/products/pdf/en-g2rl.pdf

Interested in the greenLean -- I need to be able to achieve 400 ipm on plywood-- is it possible?

With our machines the ipm capable is very dependent on the bit/end mill (the more flutes you have the faster the material will be cut) you are using as well if it is with a router or a spindle, as well as the density of the material. If those items are taken into effect reaching 400 ipm would not be a problem with the greenLean/other machines equipped with our 2.2 kW spindle, and a decent end mill.

I'm going to use 2 stepper motors for my X-axis. Can I use the same connections on the B/O board to do this knowing I will need 2 separate driver boards.

Yes, absolutely. If you need two motors for a single axis, you will want to use the same terminals for pulse and direction from the breakout board. More specifically, you will wire the step/pulse pin to both drivers, and the direction pin to both drivers. If the motors need to turn in different directions, simply swap the A and B coil connections on one of the motors. Additional Information: i have checked the cnc machine for any flex and there is none but i still cannot cut circles they end up square.have checked calibration and it is correct but if i run at 4000 mm feed all comes out correct but if i change feed to say 2000 mm it makes the part small, like in tiny.

I recently purchesed a USB Mach3 breakout board and need help setting mach3 to use a relay to start the router can you show how to set the pins and which port to use on the board to attached the relay?

Sure, connect O2 (output #2) on your mach3 USB board to the GND side of your relay coil. Connect the 24V power supply to the positive side of your 24v relay. You will want to connect a flyback diode (1N4007) between the coil connections to make sure the coil back current does not damage the Mach3 USB board. Refer to this diagram: https://www.buildyourcnc.com/Documents/Electric%20Wiring%20Diagram.pdf Please let me know if this helps and if you need further guidance. Thanks

I received the 425 oz-in motor from you. Is it supposed to rotate freely by hand when not powered?

It may be tough to rotate a stepping motor by hand prior to energizing it especially if it is a large motor above 400 oz-in. Also, if any of the wires are touching, this will cause the motor shaft to be very difficult to turn.

I am asking what to set my steps per using your kit stepper motors and a 1/2"x13 lead screw with Mach3

Here is the formula for steps/inch (steps per inch) Steps = how many steps for a full ration of the motor = standard motor steps x number of microsteps for each step Standard motor steps for our stepping motors is 200 steps per revolution. Microsteps are selected on the driver and are shown as full, 1/2, 1/4, 1/8, 1/16, 1/32 etc... Use the denominator for the number of microsteps per step. Inches = how far the travel is for one full rotation of the motor. For the 1/2" - 13 TPI (threads per inch), the travel length will be 1"/13 or .076923". So, for one revolution of the motor, the travel distance will be .076923 inches. So, the steps = 200 * microsteps, let's make this 1/4 just for the formula. The inches will be .076923. Plug those into the formula: Steps / inch = (200 * 4) / .076923 This can also be written as: 200 * 4 / (1 / 13) = 10,400 Additional Information:

How can I convert RPM to hertz Hz?

1 RPM = 1/60 Hz 1 RPM = 0.01666666 Hz. So, say you wanted to know the Hz for 12,000 RPM (12,000 Revolutions / Minute) / 60 = 200 Hz or 12,000 RPM x 0.016666 = 200 Hz If you needed to determine the RPM from the Hz, then RPM = Hz x 60 So, say you wanted to know what RPM is for 400 Hz: 60 x 400 Hz = 24,000

Hello I bought a full setup of parts a couple years ago to make a cnc router and now I have decided that I want to make a cnc router/plasma. I was wondering how to go about hooking up the plasma to the breakout board

Does your plasma cutter have an external trigger that voltage can be applied to make the trigger engage? If I known, please provide the brand and model of your plasma cutter so we can determine this. Additional Information: I converted my blackToe to do plasma cutting. Used the Motor control relay on the break out board and just wired it into the plasma cutter trigger. Put a large pan (like a car oil drip pan) with about 1/4 inch of water on the table and attached fixtures. 400 15ga parts later it's still working great. Additional Information: That is so cool!! Additional Information: I would like to post a story on your setup and conversion. Do you have pictures of the process and/or the new setup?

Can you preset an origin point on this cnc? How long does it take to jog over? (If I have the case that I using the same thickness of maple wood, and same jig everytime)?

Yes, you can preset an origin by zeroing the machine at the desired location before beginning your work. You can return to that exact point at any time, or you can specify an offset from that point to be the beginning point for the next machine operation (for instance when cutting several parts from one sheet of wood.) Jogging time varies by machine and application but would generally be a rapid move -- our default rapid setting is 400 inches per minute.