Phone Orders or Help: 800-734-3588, 206-458-7550 (Pacific Time)

Home > Mechanical Parts

DIY 3D Printer Mechanical Parts

Having Trouble Ordering?

Please call: 800-734-3588 206-458-7550

Shipping Charges Too High?

We will refund your PayPal account.
Or you can for a correct PayPal invoice.

Belts and Gears

GT2 Timing Belt

6 mm wide

2 mm pitch distance

Neoprene rubber with reinforced fiberglass

$2.50 / meter

1-10 meter pieces

(Change Qty at Checkout
if necessary)

GT2 Belt Drive Gear
16 Tooth 16T, 2 mm Pitch, 5 mm bore

3 / $6.95

GT2 Belt Drive Gear
20 Tooth 20T, 2 mm Pitch, 5 mm bore

3 / $6.95

Bearings Kits
Legacy
	Kossel Legacy Bearings Kit (18) 623ZZ (3) 608ZZG
Contains: (18) 623ZZ Bearings Inner Diameter / Bore: 3 mm Outer Diameter: 10 mm Thickness: 4 mm (3) 608ZZG Bearings Inner Diameter / Bore: 8 mm Outer Diameter: 22 mm Thickness: 7 mm Description: Self Lubricated (Grease) Shielded Wheel Ball Bearings Type: Deep Groove Ball Bearing Material: Chrome Steel 608ZZG - VXB Bearings 623ZZ - Made in China	$19.95
Mini
	Kossel Mini Bearings Kit (6) F623ZZ (1) MR625ZZ
Contains: (6) F623ZZ - Belt Return Bearings Flanged Inner Diameter / Bore: 3 mm Outer Diameter: 10 mm Thickness: 4 mm (1) MR625ZZ Bearings Inner Diameter / Bore: 5 mm Outer Diameter: 16 mm Thickness: 5 mm Description: Self Lubricated (Grease) Shielded Wheel Ball Bearings Type: Deep Groove Ball Bearing Material: Chrome Steel Made in China	$7.95

Bearings

Lubricated with Grease - Not Oil

Suitable for Printers, Not Skate Boards

Part #623ZZ
3 x 10 x 4
ID: 3mm OD: 10mm x 4mm
Carbon Steel
Greased
Made in China

Part #MR624ZZ
4 x 13 x 5
ID: 4mm OD: 13mm x 5mm
Made in China

Part #MR625ZZ
5 x 16 x 5
ID: 5mm OD: 16mm x 5mm
Made in China

Part #MR105ZZ
5 x 10 x 4
ID: 5mm OD: 10mm x 4mm
Chrome Steel
Greased
VXB Bearings

Part #608ZZG
8 x 22 x 7
ID: 8mm OD: 22mm x 7mm
Carbon Steel
Greased
VXB Bearings

Part #LM8UU
Linear Motion Ball Bushing
8 x 15 x 24
ID: 8mm OD: 15mm x 25mm
Number of Ball Circuits: 4
Built-In Rubber Seals
Made in China

$12.95

Flanged Bearings

Lubricated with Grease - Not Oil

Suitable for Printers, Not Skate Boards

Part #F608ZZ
8mm x 22mm x 7mm
Chrome Steel
VXB Bearings

Part #F623ZZ
3mm x 10mm x 4mm
Chrome Steel
Made in China

6 / $6.95

Coupling
*Coupling 55**	2 / $4.95
*Coupling 58**	2 / $4.95

Kossel Nuts, Bolts, Screws, Fastener

Kossel Legacy

$28.95

Silver colored

Nuts - (108) m3

Nuts - (3) m4

Jam Nuts - (24) m3

Nyloc Nuts - (16) m3

Washers - (45) m3

Fender Washers - (5) m3

Cap Screws - (61) m3 8 mm

Cap Screws - (12) m3 10 mm

Cap Screws - (6) m2.5 12 mm

Cap Screws - (23) m3 12 mm

Cap Screws - (33) m3 20 mm

Cap Screws - (2) m4 20 mm

Cap Screws - (19) m3 35 mm

(1) Euro Style Terminal Block Connector

(1) Long Hex Allen Wrench

Mini Kossel

$19.95

Silver colored

Nuts - (1) m5 *

Nuts - (100) m3

Nyloc Nuts - (50) m3

Washers - (1) m5 *

Washers - (30) m3

Cap Screws - (1) m5x20 *

Cap Screws - (3) m2.5 x 16

Cap Screws - (6) m2.5 x 12

Cap Screws - (6) m3 x 20

Cap Screws - (6) m3 x 35

Cap Screws - (13) m3 x 16

Cap Screws - (24) m3 x 25 **

Cap Screws - (50) m3 x 6

Cap Screws - (100) m3 x 8

(1) Euro Connector for Autoleveling

(1) Long Hex Allen Wrench for Autoleveling

* m5 parts are for the Johann's suggested extruder

** 9 extra m3x25 for a roller carriage

One customers recommendation: DO NOT install two nuts with the Belt Return Bearings because it may crack the frame part. Perhaps try nothing or one nut and a couple of washers.

Prusa i3 Rework

$34.95

Silver Colored

Nuts - (33) m3

Nuts - (6) m4

Nuts - (2) m5

Nuts - (1) m8

Nuts - (34) m10

Nyloc Nuts - (1) m8

Washers - (53) 03 mm

Washers - (6) 08 mm

Washers - (34) 10 mm

Cap Screws - (41) m3 x 14

Cap Screws - (3) m3 x 24

Cap Screws - (4) m3 x 30

Cap Screws - (2) m3 x 60

Cap Screws - (6) m4 x 20

Hex Bolt - (1) m8 x 20

Set (Grub) Screws - (5) m3 x 8

Set (Grub) Screws - (1) m8 x 20

Wade's Hobbed Bolt
With Nut and Washer

Picture Coming

$5.95

Misc

DIY 3D Printer Mechanical Parts For Sale, Ball Bearings, Hobbed MK7 Drive Gear, Rods, Rod Ends, Spools, Fan

Euro Style Terminal Block Connector

For Autoleveling

(Included with Kossel Mini Nuts, Bolts, Screws, Fasteners kit)

$0.95

Long Hex Allen Wrench

For Autoleveling

(Included with Kossel Mini Nuts, Bolts, Screws, Fasteners kit)

$1.95

Bulk Nuts, Bolts, Screws

Go to our page for bulk lots of nuts, bolts and screws.

Assembled Traxxax Rods

(6) Assembled Rods (Arms) with Traxxas Rod Ends (Graphite Tube Rods)

For DeltaBos 80, Kossel Printers and Others

(6) Rods

Rod Ends

Part #5347
Traxxas
Large Rod Ends with Hollow Pivot Balls
7/8"
Revo

Choose rod lengths
(Measured from center to center of rod end holes)

215 mm (Mini Kossel) Light Walled

250 mm Light Walled

288 mm (Kossel Legacy) Light Walled

400 mm Strong Walled

(Overall length of the set may vary up to 3 mm, but rods will all be within 0.1 mm of each other.)

Set of 6
$39.95 - $49.95

Unassembled Rod Kits

Kit contains:

(6) Rods

(12) Rod ends

(12) m4 x 20 Set Screws

See rod details below under
"Kit Components"

Graphite Rod Kits by the Length

200 mm (Strong Wall)

12" (Strong Wall)

18" (Strong Wall)

Rod Kits
$18.95 - $31.50

Pre-Cut Graphite Rod Kits

For Kossel Mini
Makes 215 mm rods* (Light Walled)

For Kossel Legacy
Makes 250 mm rods* (Light Walled)

For Kossel Legacy or Larger Mini
Makes 288 mm rods* (Light Walled)

Makes 400 mm rods* (Strong Walled)

Makes 500 mm rods* (Strong Walled)

Makes 600 mm rods* (Strong Walled)

Makes 700 mm rods* (Strong Walled)

* Measured center to center of the rod end holes

Rod Kits
$20.95 - $39.95

Kit Components

Graphite Rods by the Length

200 mm (Strong Wall)

12" (Strong Wall)

18" (Strong Wall)

6 Rods
$9.95 - $22.50

Pre-Cut Graphite Rods

For Kossel Mini
180.4 mm Rods (Light Walled)
- Makes 215 mm rods *

For Kossel Legacy
215.4 mm Rods (Light Walled)
- Makes 250 mm rods *

For Kossel Legacy or Larger Mini
253.4 mm Rods (Light Walled)
- Makes 288 mm rods *

365.4 mm Rods (Strong Walled)
- Makes 400 mm rods *

465.4 mm Rods (Strong Walled)
- Makes 500 mm rods *

565.4 mm Rods (Strong Walled)
- Makes 600 mm rods *

665.4 mm Rods (Strong Walled)
- Makes 700 mm rods *

* Measured center to center of the rod end holes

6 Rods
$11.95 - $30.50

Graphite Light Wall Tube Rods

Length may vary ±2 mm

Rods may vary ±0.3 mm in each kit

0.230 Inch Outer Diameter

0.153 Inch Inner Diameter

0.0385 Inch Wall

Graphite Strong Wall Tube Rods

Length may vary ±2 mm

Choose 12" or 18" long

0.230 Inch Outer Diameter

0.144 Inch Inner Diameter

0.043 Inch Wall

Rod Ends

Part #5347

Traxxas

Large Rod Ends with Hollow Pivot Balls

7/8"

Revo

Traxxas Rod Ends with Hollow Pivot Balls

12 / $6.95

(12) m4 20 mm Set Screws

Rod Set Screws

12 / $3.95

MK7 Hobbed Drive Gear Clone

5 mm Bore

Fits the shaft of the NEMA 17 Stepper Motor XYZ

Please note: These do not exactly match Makerbot's MK7 and may need to be modified to work in the Thing-o-Matic, Replicator 1 or a Replicator 2.

5 mm bore

12.7 mm OD

13.1 mm Length

11.4 mm Hobbed Diameter *

For 1.75 mm and 3 mm Plastic Filament

Works well with both ABS and PLA Filament

Sharp teeth designed to dig into the plastic filament for a good grip

Material: Machined stainless steel (304)

* Actual hobbed diameter may be slightly less due to the bite of the teeth

MK7 Clone / $5.95

HARDENED MK7 Clone / $6.95

HARDENED
MK8 Hobbed Drive Gear Clone

5 mm Bore

Fits the shaft of the NEMA 17 Stepper Motor XYZ

Reduced diameter gives 35% more power than an MK7 so you don't need to resort to a geared stepper motor

5 mm bore

11 mm Length

9 mm OD

7.1 mm Hobbed Diameter *

For 1.75 mm and 3 mm Plastic Filament

Works well with both ABS and PLA Filament

Sharp Teeth Designed To Dig Into the Plastic Filament for a Good Grip

Material: Hardened Stainless Steel

* Actual hobbed diameter may be slightly less due to the bite of the teeth

$6.95

HARDENED Steel
Hobbed Drive Gear

8 mm Bore

Fits the shaft of the Nema 17 GEARED Stepper Motor

8 mm bore

13.1 mm Length

12.5 mm OD

11.4 mm Hobbed Diameter *

10 mm center of teeth to edge

For 1.75 mm and 3 mm Plastic Filament

Works well with both ABS and PLA Filament

Sharp teeth designed to dig into the plastic filament for a good grip

Material: Hardened Steel

* Actual hobbed diameter may be slightly less due to the bite of the teeth

$6.95

Aluminum Filament Drive Spool

This aluminum filament drive spool was originally designed for use with the Kossel Delta 3D Printer but works great for any filament drive linear actuator system.

Height: 25.5 mm

Flange diameter: 22 mm

Work Height: 17 mm

Work Diameter: 18 mm

Shaft Diameter: 5.1mm (Fits a 5mm diameter shaft)

1 / $6.95

3 / $19.95