[ Log In ]
[ Register ]

Mechanical Parts for the DIY CNC Machines

Probably the most imporatant part of the CNC Machine and the most challenging to implement. I will try to make it easy for you by offering the common component that can be used in your DIY CNC Router. These parts are especially selected to work with motors used in the DIY community and took me quite a while to find the perfect combinations. Please read the conditions of purchase prior to purchasing any products offered by BuildYourCNC.com.


Price Options Your Cart
1/2" Anti-Backlash Lead Nut

$25.50
Qty:

This is an anti-backlash nut that works with the 1/2" 10 TPI (Threads Per Inch) 5 start Lead Screw.

Click here for more information on this product.

Price Options Your Cart
1/2" Lead Screw per inch (Steel) - If you need multiple lengths please send us an email with the dimensions

$2.00
Total Length:

This is a 1/2" 5 start and 10 TPI ACME precision lead screw that translates to 2 turns per inch. Use this to serve as your main mechanics to move an axis of your CNC machine. Couple this with our anti-backlash nut with the same specifications. The quantity is priced per inch. Total length = quantity in inches.

Click here for more information on this product.

See instructions for this product.
Price Options Your Cart
3/8" Anti-Backlash Nut

$27.95
Qty:

This is a nut that uses a spring to reduce/eliminate backlash used with lead screws on motion related applications. This anti-backlash nut is mated with the 3/8" 5 start 10 TPI lead screw

Price Options Your Cart
3/8" Lead Screw per inch (Steel) - If you need separate lengths please send us an email with the dimensions

$2.10
Total Length:

This lead screw specifications: 5 turns per inch, 3/8" outside diameter lead screw, 10 threads per inch and has 2 starts (making it 5 turns per inch). The lead screw is ACME precision and mates perfectly with this anti-backlash nut.

Click here for more information on this product.

See instructions for this product.
Price Options Your Cart
1/4" Inside Diameter Collar

$6.50
Qty:
3/8" Inside Diameter Collar

$6.50
Qty:
1/2" Inside Diameter Collar

$7.95
Qty:
5/8" Inside Diameter Collar

$7.95
Qty:
7/8" Inside Diameter Collar

$8.75
Qty:

These parts are typically used to stabilize lead screws (so they don't move axially). Notice the open cut and the screw configuration. This is called the clamp style of collar so that there is a very tight and non-slipping condition and is made of steel. These collars will also reduce the damage on the lead screw by not using set-screws.

Price Options Your Cart
1/2" ID Drive Sprocket - 14 teeth

$11.95
Qty:

This is a 14 tooth 1/2" ID drive sprocket that mates with a #25 roller chain (bicycle chain). With a drive sprocket on a motor and an roller chain, you can make things move.

Click here for more information on this product.

See instructions for this product.
Price Options Your Cart
1/4" ID Drive Sprocket (9 teeth)

$10.95
Qty:
5/16" ID Drive Sprocket (11 Teeth)

$10.95
Qty:

These sprockets are great for adding to the shaft of a motor to make something move. The drive sprocket will pair with a #25 roller chain.

Click here for more information on this product.

See instructions for this product.
Price Options Your Cart
Idler Sprocket

$15.95
Qty:

This is the same sprocket that guides #25 chain and drive sprocket. The sprocket has 20 teeth with a .25" pitch and contains an R6 ball bearing with a 3/8" ID (inside diameter).

See instructions for this product.
Price Options Your Cart
#25 Roller Chain (per foot)

$2.40
Total Length:

This is the chain that mates with the #25 sprockets. Use this chain to achieve the finest resolution roller chains can offer. The material is steel and the pitch is .25". This chain is sold by the foot. Adjust the quantity in the cart to specify the length of roller chain.

See instructions for this product.
Price Options Your Cart
#25 Roller Chain Link

$0.95
Qty:

Spring type connecting link for use with single strand chain ANSI number 25. .25 inch pitch.

Click here for more information on this product.

Price Options Your Cart
#40 Roller Chain (per foot)

$5.00
Total Length:

This is a single strand steel #40 chain that matches the pitch of the #40 sprockets. All links are riveted and can handle 437 pounds of working load.

See instructions for this product.
Price Options Your Cart
#40 Roller Chain Link

$2.75
Qty:

Spring type connecting link for use with single strand chain ANSI number 40. .50 inch pitch.

Click here for more information on this product.

Price Options Your Cart
.08" Pitch Timing Belt 1/4" wide (per inch)


$0.50
Total Length:

Single sided timing belt (belt with trapezoidal teeth) to keep a good position with linear motion applications. Urethane with Kevlar cords, pitch is .08" and the width is 1/4". This item is sold by the inch. Update the quantity with the number of inches desired.

Price Options Your Cart
20 Teeth .08" Pitch MXL Drive Pulley

$15.85
Qty:

This is an MXL size drive pulley with a .08" pitch. Connect these directly to a 1/4" motor shaft and use a .08" pitch timing belt. Maximum width belt that will fit is 1/4".

Click here for more information on this product.

Price Options Your Cart
.2" Pitch Timing Belt (per foot)

$4.60
Total Length:

Single sided timing belt (belt with trapezoidal teeth) to keep a good position with linear motion applications. Urethane with Kevlar cords, pitch is .200" and the width is 3/8". This item is sold by the foot. Update the quantity with the number of feet desired.

Price Options Your Cart
14 Teeth .2" Pitch Drive Pulley

$7.40
Qty:

This is a drive pulley with a .200" pitch. Connect these directly to the motor shaft and use a .200" pitch timing belt. The bore is 1/4" with a set screw to by used with a 1/4" motor shaft.

Price Options Your Cart
XL 15 Teeth .2" Pitch Drive Pulley 1/2" Bore

$19.99
Qty:

This is an XL size drive pulley with a .2" pitch and a 1/2" bore. Connect these directly to a 1/2" motor shaft and use a .375" timing belt.

Click here for more information on this product.

Price Options Your Cart
3/4 x 3/4 1/8 Aluminum Rail 6061 per foot - specify full amount needed in QTY, send email with specific cut lengths

$1.20
Total Length:

We use these aluminum rails as guide rails that the v-groove bearings ride along. The aluminum specification is 6061-T6 which is known for its structural characteristics.

Click here for more information on this product.

Price Options Your Cart
HIWIN Linear Guide Block

$39.99
Qty:

Authentic HIWIN Linear Guide Blocks. Shipped from the USA. Fast shipping and quick delivery. Warranty and Support available.

Click here for more information on this product.

Price Options Your Cart
HIWIN Linear Rail - per inch (Cut to Order)

$2.00
Qty:
HIWIN Rail - Full Length Piece 2000mm (Approx 78") with 2 Guide Blocks

$169.00
Qty:

For the very best quality and precision for DIY CNC, order HIWIN Linear Guide rail. Ships from USA. Full length or cut to order.

Click here for more information on this product.

Price Options Your Cart
Linear Ball Bearing Block 20mm

$9.99
Qty:

These 20mm Linear Ball Bearing Blocks are made to fit on our 20mm Linear Guide Rails.

Click here for more information on this product.

Price Options Your Cart
Linear Guide Rail - Per Inch (Cut to Order)

$1.00
Qty:
Linear Guide Rail - Full Length 1400mm Piece (Approx 55") w/ 2 Guide Blocks

$49.00
Qty:

We now offer Linear Guide rails made of high-quality hardened steel to add a new dimension of reinforcement to your machine. These rails pair with our 20mm Linear Ball Bearing Blocks.

Click here for more information on this product.