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### Question #: 4708

Current Solution

Dealing with our 3/8" ACME screw, we intended to use this with a 3D printer machine(primarily) as well as our smaller motors. Which did not need the increased torque ratings as our larger motors, which will use the 1/2" ACME screw with larger machines.

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### Other Possible Solutions to this Question

The tolerance of our 1/2" 5 start lead screw is +/-0.05mm

• Do you sell acme 1/2-8, 8 start antibacklash nuts and thread clamps?

We currently do not have that specific antibacklash nut available for sale. Please check back regularly since we are always updating our stock, and finding new items to add to our current stock regularly.

3/8 8start

Do you sell acme 1/2-8, 8 start antibacklash nuts and thread clamps?

• Will the 1/2" 5 start lead screw and the 3/8" 5 start will it all work together in unison

If the turns per inch on a lead screw is different, then the nut on the lead screw will move at a different velocity.

Let me explain in more detail.

Let's say you have two lead screws:

- 1/2" 5 starts at 10 TPI = 2 turns per inch. (5 starts / 10 TPI = 1/2 inches per turn or 10 TPI / 5 Starts = 2 turns per inch.)

- 3/8" 2 starts at 10 TPI = 5 turns per inch. (2 starts / 10 TPI = 1/5 inches per turn or 10 TPI / 2 starts = 5 turns per inch.)

So, if two stepper motors (one connected to the 1/2" lead screw and the other connected to the 3/8" lead screw) turned 10 revolutions in 2 seconds, the 1/2" lead nut would travel 5 inches and the 3/8" lead nut would travel 2 inches at the 2 second mark.

Will the 1/2" 5 start lead screw and the 3/8" 5 start will it all work together in unison

• Will the 1/2" 5 start lead screw and the 3/8" 5 start will it all work together in unison

If the turns per inch on a lead screw is different, then the nut on the lead screw will move at a different velocity.

Let me explain in more detail.

Let's say you have two lead screws:

- 1/2" 5 starts at 10 TPI = 2 turns per inch. (5 starts / 10 TPI = 1/2 inches per turn or 10 TPI / 5 Starts = 2 turns per inch.)

- 3/8" 2 starts at 10 TPI = 5 turns per inch. (2 starts / 10 TPI = 1/5 inches per turn or 10 TPI / 2 starts = 5 turns per inch.)

So, if two stepper motors (one connected to the 1/2" lead screw and the other connected to the 3/8" lead screw) turned 10 revolutions in 2 seconds, the 1/2" lead nut would travel 5 inches and the 3/8" lead nut would travel 2 inches at the 2 second mark.

Will the 1/2" 5 start lead screw and the 3/8" 5 start will it all work together in unison

• If I buy the 1/2" 5 start lead screw and the 3/8" 5 start lead screws will it all work together

If the turns per inch on a lead screw is different, then the nut on the lead screw will move at a different velocity.

Let me explain in more detail.

Let's say you have two lead screws:

- 1/2" 5 starts at 10 TPI = 2 turns per inch. (5 starts / 10 TPI = 1/2 inches per turn or 10 TPI / 5 Starts = 2 turns per inch.)

- 3/8" 2 starts at 10 TPI = 5 turns per inch. (2 starts / 10 TPI = 1/5 inches per turn or 10 TPI / 2 starts = 5 turns per inch.)

So, if two stepper motors (one connected to the 1/2" lead screw and the other connected to the 3/8" lead screw) turned 10 revolutions in 2 seconds, the 1/2" lead nut would travel 5 inches and the 3/8" lead nut would travel 2 inches at the 2 second mark.

If I buy the 1/2" 5 start lead screw and the 3/8" 5 start lead screws will it all work together

• Will the 1/2"5 start and 3/8" 5 start work in unison even though the turns per inch is different

If the turns per inch on a lead screw is different, then the nut on the lead screw will move at a different velocity.

Let me explain in more detail.

Let's say you have two lead screws:

- 1/2" 5 starts at 10 TPI = 2 turns per inch. (5 starts / 10 TPI = 1/2 inches per turn or 10 TPI / 5 Starts = 2 turns per inch.)

- 3/8" 2 starts at 10 TPI = 5 turns per inch. (2 starts / 10 TPI = 1/5 inches per turn or 10 TPI / 2 starts = 5 turns per inch.)

So, if two stepper motors (one connected to the 1/2" lead screw and the other connected to the 3/8" lead screw) turned 10 revolutions in 2 seconds, the 1/2" lead nut would travel 5 inches and the 3/8" lead nut would travel 2 inches at the 2 second mark.

Will the 1/2"5 start and 3/8" 5 start work in unison even though the turns per inch is different

• I just changed my X and Y to the ACME 1/2" 5 start lead screw. What are the motor tuning numbers. I have the book built machine.

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! (

)

I just changed my X and Y to the ACME 1/2" 5 start lead screw. What are the motor tuning numbers. I have the book built machine.

• What is the longest 1/2" Acme lead screw that I can buy?

We can supply 1/2" lead screw with a maximum continuous length of 77 inches.

Please give me a cost on a 6'x 1/2" lead screw. Thank you

no

what is the total cost for 77 inches of 1/2 inch lead screw?

what is the cost of 6 feet lead screw.

What is the longest 1/2" Acme lead screw that I can buy?

• on the 2.2Kw water cooled spindle, what is the cooling port thread type and size?

It is an M8 metric size on the port going into the spindle, and a 1/4" compression on the other side.

Is the M8 port a M8x1.25 or M8x1?

If you are referring to the book build, use a chamfer bit that is large enough to create a chamfer for most of the edge of the 3/4" thickness of the board, but still has a sliver of space for the bearing on which to ride.

Mine is M8x1mm. I replaced the stock fitting with a brass hose barb and used "steel wire reinforced vacuum hose" with a 1/4" ID because it resists kinking and collapsing.

on the 2.2Kw water cooled spindle, what is the cooling port thread type and size?

• what are the dimensions and model number of the 3/8" ID roller bearings on your website?

The specifications for our 3/8" bearings are R6ZZ. The ZZ means double metal shielded. The metal shielding is to protect the ball bearings between the inner race and outer race.

Inside diameter: 3/8"
Outside Diameter: 7/8"
Width: 9/32"

what are the dimensions and model number of the 3/8" ID roller bearings on your website?

• How much is your ; blackTooth Laser Cutter and Engraver CO2 40W

You can find all of the information including the price on the blackTooth Laser cutter and engraver page found here: https://www.buildyourcnc.com/blackToothLaserCutterAndEngraver.aspx

How much is your ; blackTooth Laser Cutter and Engraver CO2 40W

• For the 1/2'' 5 start ACME leadscrew, what is the length purchased for the \$2.00 order? and if you make 2 orders, are you getting two separate rods or 1 rod at twice the length. Thanks.

We sell our ACME screws in total length (overall length you require), but if individual lengths are needed you can contact us via phone (281-815-7701) or email (customerservice@buildyourcnc.com).

A \$2.00 order will be a total of 1 inch, but if ordered separately then you will receive 2 of the same length.

For the 1/2'' 5 start ACME leadscrew, what is the length purchased for the \$2.00 order? and if you make 2 orders, are you getting two separate rods or 1 rod at twice the length. Thanks.

• [575] It is possible to use Modbus MPG with your card or it is only hardware mpg allowed?

You can use a USB, RS232, RS485 (modbus), wireless, or hardwired MPG or Pendant with this controller. I personally use a wireless pendant with this controller without a problem.

[575] It is possible to use Modbus MPG with your card or it is only hardware mpg allowed?

• What is the liquid input and output barb size on your 2.2kw water cooled spindle?

The spindle water inlet and outlet fittings are 1/4 Inside Diameter and 3/8 Outside Diameter.

You can find the silicone tubes here:
https://buildyourcnc.com/item/pneumatic-hydraulic-silicone-tubing

This fitting will connect to the pump (1/2" male to 1/4" female):
https://buildyourcnc.com/item/pneumatic-hydraulic-Tube-Fitting-Female-to-Male

And this fitting will provide a reduced barbed size (1/4") for the tube:
https://buildyourcnc.com/item/pneumatic-hydraulic-Tube-Fitting-Barbed-to-Male

What is the liquid input and output barb size on your 2.2kw water cooled spindle?

• Can 3/8" lead screw be used instead of 1/2" on the 'BOOK' machine?

Yes, you will only need to change the coupling that couples the motor to the 3/8" lead screw.

Yes, you will only need to change the coupling that couples the motor to the 3/8" lead screw.

Can 3/8" lead screw be used instead of 1/2" on the 'BOOK' machine?

• Can your water cooled spindles accept 1/2" collets?

Yes, our 2.2kW water cooled spindles can accept the 1/2" collet size.

Can your water cooled spindles accept 1/2" collets?

• [575] Why is a second PSU necessary for the limit switch and e-stop ?

Because the USB board is powered by USB (+5VDC) from your PC. Your inputs (eg. limit switches) require up to +36VDC to operate properly.

[575] Why is a second PSU necessary for the limit switch and e-stop ?

• WHAT CAUSES RINGING IN YOUR EAR AND HOW CAN YOU STOP IT?

Tinnitus . Learn to love it. No really you should see a doctor. Make sure. White noise will help you sleep when it gets loud.

I learned, too late, that if a sudden loud event causes tinnitus, see an audiologist IMMEDIATELY. They can do something about it if addressed within a day or so.

Wear hearing protection...always. Loud noises trigger my tinnitus, and headphones and ear plugs (when out & about or at the movies, subway, etc) help tremendously. Mine are rated 33dB.

WHAT CAUSES RINGING IN YOUR EAR AND HOW CAN YOU STOP IT?

• Regarding 1/2" 5 start and 10 TPI ACME precision lead screw, what the maximum length you can ship within USA? I'm looking for something like 100" and I could use a 1" screw if available. Please include estimated price. Thanks.

The maximum length we can ship is a total of 78" inches. However we can send your required length in portions. Please refer to adding the total items you require to your cart to get a visualized amount and shipping cost.

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