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### Question #: 493

Question: THE BLACKTOE REQUIRES HOW MUCH MOTOR CABLE

Current Solution

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

Respond:

### Other Possible Solutions to this Question

• HOW MUCH MOTOR CABLE FOR THE BLACKFOOT?

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

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HOW MUCH MOTOR CABLE FOR THE BLACKFOOT?

• BLACKTOE REQUIRED HOW MUCH CABLE

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

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BLACKTOE REQUIRED HOW MUCH CABLE

• HOW MUCH MOTOR CABLE SHOULD PURCHASE FOR THE BLUECHICK

The recommended total length of motor cable should be 15 feet for the blueChick v4.2

Z - 6 feet
Y - 5 feet
X- 4 feet

20 AWG 4 conductor

If your drivers will be positioned farther from the machine, you may need longer cable.

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HOW MUCH MOTOR CABLE SHOULD PURCHASE FOR THE BLUECHICK

• HOW LONG SHOULD THE MOTOR CABLES BE FOR BLACKTOE

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

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HOW LONG SHOULD THE MOTOR CABLES BE FOR BLACKTOE

• BLACKTOE MOTOR CABLE LENGTH

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

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BLACKTOE MOTOR CABLE LENGTH

• HOW MUCH MOTOR CABLE DO I NEED FOR A BLACKFOOT

The blackfoot requires a total of 50 feet of cable.

The X axis needs 15 feet
The Y axis needs 17 feet
and the Z-axis needs 18 feet

These are 20 gauge 4 conductor cable.

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HOW MUCH MOTOR CABLE DO I NEED FOR A BLACKFOOT

• BLACKTOE MOTOR CABLE

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

Click the link to add information to this solution:
BLACKTOE MOTOR CABLE

• WHAT CABLE LENGTHS ARE USED FOR THE BLACKTOE

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

Click the link to add information to this solution:
WHAT CABLE LENGTHS ARE USED FOR THE BLACKTOE

• WHAT CABLE LENGTHS SHOULD USE FOR THE BLACKTOE

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

Click the link to add information to this solution:
WHAT CABLE LENGTHS SHOULD USE FOR THE BLACKTOE

• WHAT ARE THE CABLE LENGTHS FOR BLACKTOE

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

Click the link to add information to this solution:
WHAT ARE THE CABLE LENGTHS FOR BLACKTOE

• WHAT ARE THE CABLE LENGTHS FOR BLACKTOE

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

Click the link to add information to this solution:
WHAT ARE THE CABLE LENGTHS FOR BLACKTOE

• I HAVE BLACKTOE 4.1 WITH PORTER CABLE 890 ROUTER.TO CONVERT TO SPINDLE(2.2KW) CAN JUST CHANGE THE MOUNT?

If you would like to use a spindle rather than a router on your existing CNC, we will send you another set of components that will allow the spindle to be mounted properly which includes the z-axis rails, rail support, spindle mounts and the dust shoe components. You can find this item to purchase here: https://www.buildyourcnc.com/category/z-axis

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I HAVE BLACKTOE 4.1 WITH PORTER CABLE 890 ROUTER.TO CONVERT TO SPINDLE(2.2KW) CAN JUST CHANGE THE MOUNT?

• HOW CAN I KNOW MUCH WEIGHT MY MOTOR CARRY?

There are two main questions that we can answer with respect to motor torque and the mechanical advantage of lead screws, 1) What torque motor do you need to lift a particular weight, or 2) What maximum weight will my motor torque be able to lift.

This formula uses Newtons (N) as it's final unit. Use this with the included radius (R) to determine the torque. Newtons can easily be converted to lbs or ounces using online conversions.

Effort = Sf + (Load/(2 x pi x (R/p) x Se))

where:
p = pitch of the screw
Se = screw efficiency = Standard lead screw will be between 20% (.2) and 40% (.4)
Sf = static force. This is the force that is needed to start the movement. The number may be eliminated, but it is good to use a number in the 5 N to 20 N range.
Load = the expected load that the effort will need to carry (i.e., the router and the included axis assembly that the motor will need to lift)
R = radius of the lead screw

This formula is based on the "law of the machine"

The final effort amount with its unit of newtons and R will be the torque. For example, if the effort comes to 100 N (newtons) and the R is .5 inches, then you can assume that the effort is 50 N-in since it would take twice the effort to turn form the one inch mark from the center of the shaft.

Example:

Load = 90 N (20.2 lbs)
R = 1 inch since that is the length from the center of the shaft that the motor is rated
p = 1 inch / 13 = .08 inches

Effort = 5 N + (90 N / (2 x 3.14 x (1 / .08) x .2))
Effort = 5 N + (90 N / (6.28 x 12.5 x .2))
Effort = 5 N + (90 N / (15.7))
Effort = 5 N + (5.73 N)
Effort = 10.7 N = 2.4 lbs = 38.4 oz-in

I am putting the oz-in on the end because the formula considers the distance from the center of the shaft to be one inch.

Therefore, a 425 oz-in motor would be able to lift a 20.2 lb Router with its accompanying assembly. If the assembly and router is heavier, plug in the numbers and determine the effort required.

With a bit of algebra, the formula can be rewritten to find the load:

Load = (Effort - Sf) x (2 x pi x (R/p) x Se)

Another formula that does not consider friction at all:

Effort = (Load x p) / (2 x pi x R)

Lets see if we get similar results:

Effort = (20 lb x .08 inches) / (2 x 3.14 x 1)
Effort = 1.6 / 6.28 = .255 lbs = 4.08 oz-in

The results from both formulas appear to be very small because a 13 TPI screw will have enormous mechanical advantage.

It is evident that the first formula that does consider friction that we are loosely estimating is far more conservative than the second formula. Either way, even the most conservative formula shows that the 425 oz-in motor will handle very large weights. If you are using a lead screw with only two turns per inch, .5 inch pitch, you can determine the requirements with the first formula.

Example for a 10 TPI 5 start (2 turns per inch) lead screw:

Load = 90 N (20.2 lbs)
R = 1 inch since that is the length from the center of the shaft that the motor is rated
p = 1 inch / 2 = .5 inches

Effort = 5 N + (90 N / (2 x 3.14 x (1 / .5) x .2))
Effort = 5 N + (90 N / (6.28 x 2 x .2))
Effort = 5 N + (90 N / (2.512))
Effort = 5 N + (35.83 N)
Effort = 40.828 N = 9.18 lbs = 146.88 oz-in

Customer Response:
thank you so much

how do i calculate torque of stepper motor if lead screw coupled to motor shaft and load applied by lead screw on plate is 100 kg by vertically

Pls

1m 16mmdiameter ball screws calculations

What is the max load that 2 NEMA 17 stepper motors (spaced 2 feet apart, both will be pushing up on the same gantry) can lift while using a rod with the following specifications T8 OD 8mm Pitch 2mm Lead 4mm for each motor.

1

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HOW CAN I KNOW MUCH WEIGHT MY MOTOR CARRY?

• MOTOR WIRES FOR BLACKTOE

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

Click the link to add information to this solution:
MOTOR WIRES FOR BLACKTOE

• BLACKTOE MOTOR CABLES

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

Click the link to add information to this solution:
BLACKTOE MOTOR CABLES

• WHAT LENGTH OF MOTOR CABLE SHOULD BE USED WTIH THE BLUECHICK V4.2

The recommended total length of motor cable should be 15 feet for the blueChick v4.2

Z - 6 feet
Y - 5 feet
X- 4 feet

20 AWG 4 conductor

If your drivers will be positioned farther from the machine, you may need longer cable.

Click the link to add information to this solution:
WHAT LENGTH OF MOTOR CABLE SHOULD BE USED WTIH THE BLUECHICK V4.2

• WHAT IS THE DIFFERENCE BETWEEN A PRINTER CABLE PORT AND USB MOTOR KITS

The parallel (printer cable) port is uses the computer as its main source of pulse trains to operate the motor driver directly. Parallel ports are a direct connection from the processor commonly referred to as GPIO pins (General Purpose I/O pins) and provides a convenient and powerful way to interface with the computer. The parallel breakout board is included in those kits only to condition those signals for use with the drivers.

The USB serves at the actual controller, sending the pulse trains, but the computer sends simple human readable instructions to the USB controller to tell the controller how to send pulses.

The non-technical differences that may serve as the most important information to you is that the parallel configurations allow for a wider variety of industry standard software that can be used to control the cnc machine. The USB that we offer requires the operator to use a software called Planet-CNC software which is a very well made and feature full cnc control software.

USB Motion controller breakout board work with planet cnc software?

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WHAT IS THE DIFFERENCE BETWEEN A PRINTER CABLE PORT AND USB MOTOR KITS

• BLACKTOE CABLE

The motor cables for the blackToe are as follows:

Total 30 feet

X - 9
Y - 10
Z - 11

Click the link to add information to this solution:
BLACKTOE CABLE

• WHAT IS THE LEAD TIME FOR BLACKTOE?

You can expect a one week lead time for our machines.

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WHAT IS THE LEAD TIME FOR BLACKTOE?

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