PDF User Manual

CRP600 Benchtop PRO CNC Machine

Assembly Instructions

Updated 10/26/2015

SHEET 1 of 14

Front

Back

4

5

2

1

3

4

6

Back

Front

Flush

Flush

Parts Added

Step 1: Leg Assembly

Assemble the leg pieces by attaching the feet to the ends of 

the extrusion and attaching the 40mm gussets to the other end. 

The location of the gusset varies between the two 

configurations, and are shown in the figures on the left.
Make sure that the gussets are flush with the edge of the 

extrusion as shown below.
There are four legs, two of each configuration.

Fasteners in bag: CRP613-00-FAST

#

PART

Front 

QTY

Back 

QTY

Ext 

QTY

1

4080 Extrusion x 160 mm

1

1

4

2

TNR-M8, Roll in M8 T-nut

2

0

4

3

7002, Leveling Foot End Plate

1

1

4

4

BHCP-M8-16, M8 Button Head Cap 

Screw x 16mm

4

4

16

5

6036, 40mm Single Gusset

1

1

4

6

7036, M12 Leveling Foot, 50mm

1

1

4

Updated 10/26/2015

SHEET 2 of 14

6.3in

160mm 

X Axis

X' Axis

6

1

3

4

2

5

Front

Back

Eccentric

Concentric

6.3in

160mm 

Spacing Detail

Step 2: X-axis Crossmembers

Parts Added

A) Use the anchor fasteners to attach the crossmembers to the 

bottom T-slot of the X-axes. Install the front crossmember flush 

with the end of the axis extrusion first, then install the next two 

spaced 160mm[6.299in] apart to facilitate the installation of the 

T-slot table extrusion. A piece of table extrusion can be used to 

verify this spacing. (See Step 9).
8020 Inc. has videos on how to use the anchor fastener.

One video can be found at youtu.be/watch?v=y13-J3wtwCQ

Other instructions can be found by searching "8020 anchor 

fastener"
B) Install the V-Con wipers on the concentric bushings on the 

top the two axes. The axes are labeled and should be oriented 

as shown. If oriented improperly, the eccentric bushings will be 

on top instead. The V-Con wipers cannot be installed on the 

eccentric bushing. (See below.)

✔

✖

Fasteners in bag: CRP613-00-FAST

Fasteners in bag: CRP610-00-FAST

#

PART

QTY

1

CRP610 Ballscrew X-Axis

2

2

BHCP-M8-30, M8 Button Head Cap Screw x 30mm

12

3

TNR-M8, Roll in M8 T-nut

12

4

2002, Anchor Fastener

12

5

4080 Extrusion x 641 mm

3

6

V-Con Wiper

4

Updated 10/26/2015

SHEET 3 of 14

2

1

3

Front

Back

Attach the legs built in step one to the table. It may be 

easier to install the legs with the machine flipped upside 

down.
Note: One crossmember is hidden to show a front leg

Parts Added

Step 3: Leg installation

Fasteners in bag: CRP613-00-FAST

#

PART

QTY

1

CRP610-01-00 Leg Assembly

4

2

TNR-M8, Roll in M8 T-nut

8

3

BHCP-M8-16, M8 Button Head Cap Screw x 16mm

8

Updated 10/26/2015

SHEET 4 of 14

Front

Back

2

1

3

Attach the riser plate to the X-axes. 
Losely attached the t-nuts and the remaining screws to 

the upper clearance holes on the riser plates.
The tapped holes on the interface plate used for 

attaching the risers are indicated below with centermarks.

Parts Added

Fasteners in bag: CRP620-00-FAST

Step 4: Riser installation

#

PART

QTY

1

CRP620-02 Riser Plate

2

2

SK-M8-16, M8 Socket Head Cap Screw x 16mm

26

3

TNR-M8, Roll in M8 T-nut

10

Updated 10/26/2015

SHEET 5 of 14

3

5

4

2

1

5

4

3

Atach the extrusion segments to the gantry back plate. To 

do this, first slide the button head screws and t-nuts into the 

extrusion, place the extrusion against the steel plate, and 

thread the button head screws through the approprate 

holes, then fasten the extrusion using the socket head cap 

screws and t-nuts. Using the access holes in the extrusion, 

tighten the button head screws.
Loosely attach the remaining fasteners to the back plate.
The riser extrusion features two access holes for tightening 

the button head screws. The extrusion must be oriented as 

shown for proper installation.

Parts Added:

Step 5: Gantry Support Assy.

Fasteners in bag: CRP620-00-FAST

Access Holes

#

PART

QTY

1

TNR-M8, Roll in M8 T-nut

32

2

SK-M8-16 - M8 x 16mm Socket Head Cap Screw

28

3

CRP630-01 - Benchtop Pro Gantry Back Plate

1

4

BHCS-M8-20 - M8 X 20mm Button Head Cap Screw

4

5 4080-200-BTPRO - 200mm 4080 Extrusion w/ 2xM8 Holes 2

Updated 10/26/2015

SHEET 6 of 14

Align the riser plates by either pushing them along the axis, 

or by manually turning the top of the ballscrew.
Then, slide the back plate and extrusion onto the untighted 

fasteners on the risers. Keep the top of the extrusion flush 

with the top of th riser plate and tighten the remaining riser 

fasteners.

Step 6: Gantry Support Install

Updated 10/26/2015

SHEET 7 of 14

1

Front

Back

X' Axis

X Axis

Y Axis / Gantry

1.0in

24.50mm 

X Axis Detail

End of Y Axis

Slide the gantry onto the t-nuts in the support plate, 

starting at the end of the gantry opposite the motor 

mount. Position the gantry so that it is positioned as shown 

in the detail below.
After the gantry is positioned, tighten the remaining screws 

on the back plate to secure the gantry. Use the access 

holes in the riser extrusion to tighten the outer button 

heads.

Parts Added:

Step 7: Gantry Installation

#

PART

QTY

1

CRP630-00 - Ballscrew Y Axis

1

Updated 10/26/2015

SHEET 8 of 14

2

1

Front

Back

Attach the Z-Axis assembly to the gantry interface plate 

with the provided screws.
Tapped holes used on the interface plate to attach the Z-

axis are indicated below with centermarks.

Parts Used

Step 8: Z-Axis

Fasteners in bag: CRP440-00-FAST

#

PART

QTY

1

CRP640 Ballscrew Z Axis

1

2

SK-M6-12, M6 Socket Head Cap Screw x 12mm

8

Updated 10/26/2015

SHEET 9 of 14

2

3

1

1)Roll t-nuts into cross member extrusion and position as 

shown.  A small hex key or screwdriver simplifies this step.

2)Lay the table extrusion on the crossmembers.

3)Fasten the table extrusion using the flathead screws.
Note: The gantry is hidden this step to make space for the 

exploded view.

Parts Added:

Step 9: Machine Table Extrusion

Fasteners in bag: CRP611-00-FAST

#

PART

QTY

1

TNR-M8, Roll in M8 T-nut

24

2

FH-M8-30, Flat Head Socket Screw M8 x 30

24

3

CRP20160, T-Slot Machine Table Extrusion

4

Updated 10/26/2015

SHEET 10 of 14

NEMA 23

SK-M5-12

Coupler Alignment

Ballscrew End

Oldham Coupler 10mm Half

Oldham Coupler Middle

Oldham Coupler Motor Half

NEMA 34

SK-M6-16

Motor Plate

Step 10: Motor Installation

Note: Motor kits are sold separately from the base BenchtopPRO package
Depending on how your order was placed and processed, the oldham coupler may 

be partially or entirely installed on the ballscrew.
These steps will need to be performed for all 4 axes.

Coupler Installation:

If the entire coupler is installed on the ballscrew:

1) Loosen the M4 socket head clamp on the motor half of the oldham coupler.

If the coupler is not installed:

1) If necessary, assemble the coupler by pressing the two metal halfs into the plastic 

middle piece.
2) Loosen the two M4 socket head clamp screws in the oldham coupler.
3) Slide the 10mm half onto the ballscrew end until it presses against the shaft collar, 

and tighten the clamp screw.

If 10mm half alone is installed:

1) Loosen the M4 socket head clamp on the motor half of the oldham coupler.
2) Assemble the coupler by pressing the motor half into the plastic middle piece, 

then pressing the middle piece into the 10mm half. 

Motor Installation:

1) Slide the motor shaft into the motor half of the oldham coupler.
2) Fasten the motor to the motor plate using the supplied fasteners.
3) Tighten the clamp screw on the motor half of the oldham coupler.

Updated 10/26/2015

SHEET 11 of 14

Use this hole for X' Axis

Use this hole for X axis

Note: Homing switch kits are sold separately from the base BenchtopPRO package
These steps will need to be performed for the X, X' and Y axes.
For both the X and X' axis, the sensor should be installed in the lower hole, as to not 

interfere with the riser plate. The Y axis can have the sensor in either hole.
A homing switch is not typically used for the z axis, as setting your z axis is dependent 

on the length of tooling installed, which is better accomplished with an Auto Z Touch 

Plate.
1) Thread the sensor through the M12 tapped hole on the motor plate.
2) Thread the two M12 nuts on either side of the sensor to secure the sensor in place.
3) Plug the sensor into your electronics kit and test.

Step 11: Homing Switches

Updated 10/26/2015

SHEET 12 of 14

1

2

9

5

7

6

3

8

4

1.5in

38.10mm 

1) Attach the Z-axis Cable Track Support bracket to the 

bottom of the Z-axis motor plate using the SK-M6-12's.
2) Attach the cable track support bracket to the gantry 

riser using the T-nuts and BHCP-M8's.
3) Attach the Cable Track Moving Bracket to the bottom 

of the X'-axis interface plate.
4) Attach the Cable Track Fixed Bracket to the inside of 

the back leg on the opposite side(X-axis) of the machine, 

spaced 1.5in from the bottom of the leg.

Parts Added:

Step 12: Cable Track Support

#

PART

QTY

1 CRP630-03, Benchtop Pro Z-axis Cable Track Support

1

2

SK-M6-16, M6 x 16mm Socket Head Cap Screw

2

3

BHCS-M8-12, M8 x 12mm Button Head Cap Screw

2

4

TNR-M8, M8 Roll-in T-nut

2

5 CRP630-02 - Benchtop Pro Y-axis Cable Track Bracket

1

6

BHCS-M6-12, M6 x 12 mm Socket Head Cap Screw

2

7

CRP621-01, Cable Track Moving Bracket

1

8

CRP621-02, Cable Track Fixed Bracket

1

9

BHCS-M8-16, M8 x 16mm Button Head Cap Screw

2

Updated 10/26/2015

SHEET 13 of 14

1

Rotating end (Z-Axis)

Non-rotating end (Y-Axis)

Note: It may be easier to route your cables through the 

track prior to attaching the track to the support brackets. 

Instructions for how to operate the cable track can be 

found at: www.cncrouterparts.com/pro-cable-track-

installation-instructions-p-273.html (See Part 2)
Upper Cable Track
Attach each flat end of the cable track to the 

appropriate cable track support bracket using the M6 

button head screws. Note that the two ends are different, 

and that the cable track only bends in one direction. The 

non-rotating end attaches to the Y-axis bracket, and the 

other end attactches to the Z-axis bracket.  The cable 

track should go from the gantry, past the Z-axis, and wrap 

up and back and around to the other bracket as shown 

on the cover sheet.

Lower Cable Track
1)Attach the hole end of the cable track to the moving 

cable track bracket using the M6 button head screws.
2) Attach the pin end of the cable track to thet fixed 

cable track bracket using the M6 button head screws.

Fasteners Added:

Step 13: Cable Track

#

PART

QTY

1

BHCP-M6-12, M6 x 12mm Button Head Cap Screw

8

Updated 10/26/2015

SHEET 14 of 14