CRP700 Benchtop Basic CNC Machine Assembly Instructions. Updated 9/11/2014 SHEET 1 of 25

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Claire O’Brien’
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1 CRP700 Benchtop Basic CNC Machine Assembly Instructions Updated 9//0 SHEET of

2 NOTE: This piece of extrusion is mounted wide side up Quick Tip: Lay extrusion on table as shown for easy assembly BASE ASSEMBLY:. Fasten the /6" V-Con Plate to the 080 extrusion with fasteners as shown mm 080 Extrusion, 80mm CRP70-0 /6" X Axis V-Con Plate BHCS-M8-6 M8 X 6mm Button Head Cap Screw 8 Updated 9//0 SHEET of

3 700 M Foot Mounting Plate - 0mmx80mm 708 M 0mm Rubber Foot SK-M8- M8- HEX SOCKET HEAD CAP SCREW TNR-M8 T-Nut, Roll-in Ball, M8 8 BHCS-M8-6 M8 X 6mm Button Head Cap Screw 8 8 A BASE ASSEMBLY:. Assemble the legs (DETAIL A) and attach to base.. Fasten second /6" V-Con Plate to extrusion DETAIL A SCALE : Updated 9//0 SHEET of

4 BEARING & NUT BLOCK ASSEMBLY:. Prepare Bearing Blocks (two variations) and Acme Nut block for use in machine drive. Radial Bearing Block Radial & Thrust Bearing Block Acme Nut Block CRP70-0 Die-Cast ACME Bearing Block R-RS /" x /" x /" Rubber Sealed Bearing MSC08076 Washer for /" Thrust Bearing MSC08090 /" Needle Thrust Bearing 90A0 M X 0. Set Screw - mm CRP70-0 Die-Cast ACME Nut Block CRP6-0 Dumpster ACME nut jam nut CRP6-0 Dumpster ACME Nut -Start 90A0 M X 0. Set Screw - mm Updated 9//0 SHEET of

5 NOTE: Radial & Thrust Bearing NOTE: Radial Bearing Only DETAIL B SCALE : DETAIL C SCALE : C B X-AXIS ACME DRIVE ASSEMBLY:. Assemble Radial & Thrust Bearing Block onto /" Shaft Adapter.. Thread Acme Nut onto Acme Screw (NOTE: Push down on black spring-loaded ring to start threads on shaft). Thread Acme Screw onto Shaft Adapter. Slide on /" collar and Radial Bearing Block Acme -8 8" -Start /" Acme Screw CRP70-00 Cast Acme Nut Assembly CRP70-00 Bearing Block -Radial & Thrust Bearings CRP70-00 Bearing Block - Radial Bearing Only CRP00-0 /" Shaft Adapter 6 9T /" Shaft Collar - Set Screw A " Shim for /" Shaft 8 6K /" Shaft Collar Updated 9//0 SHEET of

± E 7.9±. 0± Ensure motor mount is centered on extrusion 0.7-0.0 Oldham Oldham Coupler - /8" to /" CRP00-6E 0 oz-in Nema Stepper Motor /8 Shaft X-AXIS ACME DRIVE ASSEMBLY:.

6 ± E 7.9±. 0± Ensure motor mount is centered on extrusion Oldham Oldham Coupler - /8" to /" CRP00-6E 0 oz-in Nema Stepper Motor /8 Shaft X-AXIS ACME DRIVE ASSEMBLY:. Tighten Oldham Coupler onto motor with mm gap. Mount motor in center of extrusion on base as shown CRP70-0 Basic CNC Nema Motor Mount SK-M8-6 M8 x 6mm Socket Head Cap Screw TNR-M8 T-Nut, Roll-in Ball, M8 SK-0-0_6 0- X /8 HEX SOCKET HEAD CAP SCREW DETAIL E SCALE : Updated 9//0 SHEET 6 of

7 X-AXIS ACME DRIVE ASSEMBLY:. Slide /" Shaft Adapter into Oldham coupler, fasten bearing block to underside of extrusion as shown (DETAIL F). Fasten Radial Bearing Block to opposite side of machine in center of extrusion. Secure cable track bracket onto bottom of extrusion (DETAIL G) DETAIL F SCALE :. DETAIL G SCALE : SK-M8-6 M8 x 6mm Socket Head Cap Screw TNR-M8 T-Nut, Roll-in Ball, M8 CRP7-0 Desktop Cable Track Bracket BHCS-M8- M8 x mm Button Head Cap Screw F Updated 9//0 SHEET 7 of

8 RISER ASSEMBLY:. Assemble V-Bearings into appropriate Bushings, fasten bushings to plate. For eccentric bushings, use center hole (Detail H). Repeat this step for both risers CRP70-0 Riser Plate for Basic CNC Concentric bushings on top two bearings, tighten well 6 VB-W V-Roller Bearing SK-M6- M6 x mm Socket Head Cap Screw FW-M6-0 M6 Flat Shim Washer - 0.mm Thick BX Eccentric Bushing, 6mm 6 BM Bushing, Concentric, 6mm DETAIL H SCALE :. NOTE: Mount eccentric bushings to center hole. Additional holes are for adjusting tension on rail H Eccentric bushings on bottom two bearings, do not completely tighten Updated 9//0 SHEET 8 of

9 RISER ASSEMBLY:. Attach gussets to red plate as shown Hole inside corner gusset 606 Hole Corner Gusset BHCS-M8- M8 x mm Button Head Cap Screw 6 Updated 9//0 SHEET 9 of

10 K Slide riser assemblies onto rails. Ensure bottom bushings are not fully tight and rotate eccentric bearings as needed to allow riser to slide onto rail DETAIL K SCALE :. RISER ASSEMBLY:. Slide riser assembly onto rail. Rotate eccentric bushing counter-clockwise until tight, hold in place while tightening screw. Repeat for both eccentric bushingns on each riser plate ( total) STEP : Rotate clockwise until snug (unscrew and move to outermost hole if bushing easily turns full rotation) STEP : While holding bushing snug, tighten bolt with mm allen wrench Updated 9//0 SHEET 0 of

11 RISER ASSEMBLY:. Attach 800 extrusion to gusset on each riser as shown (DETAIL G). Fasten Acme Nut onto 800 extrusion in slot as shown (DETAIL H). Secure Cable Tray Bracket onto extrusion in approximate location (Detail I) DETAIL G SCALE : ITEM NO. PART NUMBER DESCRIPTION QTY BHCS-M8-6 M8 x 6mm Button Head Cap Screw TNR-M8 T-Nut, Roll-in Ball, M8 7 SK-M8-6 M8 x 6mm Socket Head Cap Screw BHCS-M8- M8 x mm Button Head Cap Screw CRP7-0 Desktop Cable Track Bracket I H G DETAIL I SCALE : DETAIL H Updated 9//0 SCALE : SHEET of

12 GANTRY ASSEMBLY:. Attach Oldham coupler to motor. Mount motor as shown (DETAIL M). Attach bearing block, /" Shaft Adapter, and other drive components onto extrusion as completed in DETAIL M M ± ITEM NO. PART NUMBER DESCRIPTION QTY mm 8080 Extrusion, 70mm CRP70-0 Basic CNC Nema Motor Mount CRP70-0 Die-Cast ACME Bearing Block CRP00-0 /" Shaft Adapter Oldham Oldham Coupler - /8" to /" 6 6K /" Shaft Collar A " Shim for /" Shaft 8 SK-M8-6 M8 x 6mm Socket Head Cap Screw 6 9 TNR-M8 T-Nut, Roll-in Ball, M8 0 SK-0-0_6 0- X /8 HEX SOCKET HEAD CAP SCREW CRP00-6E 0 oz-in Nema Stepper Motor /8 Shaft Assembled View DETAIL M SCALE :. Updated 9//0 7 8 SHEET of

13 GANTRY ASSEMBLY:. Attach /6" V-Con Plate as shown. CRP70-0 /6" Y Axis V-Con Plate TNR-M8 T-Nut, Roll-in Ball, M8 BHCS-M8-6 M8 X 6mm Button Head Cap Screw Mount V-Con Plate flush with side of bearing block Updated 9//0 SHEET of

14 GANTRY ASSEMBLY - Y-Axis Side:. Attach V-Bearings to Gantry Plate in similar fashion to riser plates (when mounting eccentrics, always choose center hole).. Mount Acme Nut oriented as shown NOTE: Additional holes are available for later adjustment CRP70-0 Basic CNC Gantry Plate VB-W V-Roller Bearing BM Bushing, Concentric, 6mm SK-M6- M6 x mm Socket Head Cap Screw FW-M6-0 M6 Flat Shim Washer - 0.mm Thick 6 BX Eccentric Bushing, 6mm 7 CRP70-0 Die-Cast ACME Nut Block 8 SK-M8- M8- HEX SOCKET HEAD CAP SCREW Use inward-most holes Updated 9//0 SHEET of

15 GANTRY ASSEMBLY - Z-Axis Side:. Attach Z-Axis V-Bearings to opposite side of Gantry Plate (per previous, fasten eccentric bushings to center hole).. Mount Acme nut as shown NOTE: Additional holes are available for later adjustment CRP70-0 Basic CNC Gantry Plate VB-W V-Roller Bearing BM Bushing, Concentric, 6mm SK-M6- M6 x mm Socket Head Cap Screw FW-M6-0 M6 Flat Shim Washer - 0.mm Thick 6 BX Eccentric Bushing, 6mm 7 CRP70-0 Die-Cast ACME Nut Block 8 SK-M8- M8- HEX SOCKET HEAD CAP SCREW Updated 9//0 SHEET of

16 GANTRY ASSEMBLY:. Slide on Acme Screw to shaft adapter, leave set screws loose.. Slide one /" Shaft Collar on to use as bumper. Leave untightened.. Slide Gantry Plate onto rail using same method as the riser plates, rotating screw to thread on acme nut. Leave eccentric bushings untightened.. Slide second /" Shaft Collar on to use as bumper. Leave untightened.. Attach Radial Bearing Block to extrusion as shown below. Tighten set screws on shaft adapter. Acme -6 6" -Start /" Acme Screw CRP70-0 Die-Cast ACME Bearing Block 9T /" Shaft Collar SK-M8-6 M8 x 6mm Socket Head Cap Screw Mount bearing block flush with side of V- Con plate Be sure to tighten set screws before moving onto next step slide /" collars on shaft, these act as slide /" collars on shaft, these act as Updated 9//0 "bumpers" to "bumpers" to prevent the gantry prevent the gantry plate from driving plate from driving off its track. off its track SHEET 6 of

17 GANTRY ASSEMBLY:. Tighten down "bumper" /" Shaft Collars to prevent Gantry Plate from running off the edge of the V-Con plate.. Tighten the eccentric bushings on the back of the Gantry Plate, moving the bushings to alternate holes where necessary. STEP : Turn bushing with cresent wrench until snug. If tbushing does not feel snug after one full rotation, transfer bushing and bearing to outermost hole STEP : While holding bushing tight, tighten screw with mm allen wrench Updated 9//0 SHEET 7 of

18 Gantry Assembly:. Attach gantry to machine as shown to right.. Install proximity switch bracket as shown (DETAIL O) BHCS-M8-6 M8 X 6mm Button Head Cap Screw 8 BHCS-M8- M8 X mm Button Head Cap Screw TNR-M8 T-Nut, Roll-in Ball, M8 8 CRP7-0 Basic CNC Proximity Switch Mounting Plate O DETAIL O SCALE :. O Updated 9//0 SHEET 8 of

19 Z-AXIS ASSEMBLY:. Bolt motor mount and bearing block mounting plate to Z-Axis V-Con Plate.. Assemble acme-drive assembly as shown to right. Bolt Bearing Block onto Z- Axis V-Con Plate CRP70-0 MSC08076 Die-Cast ACME Bearing Block Washer for /" Thrust Bearing MSC08090 /" Needle Thrust Bearing CRP00-0 /" Shaft Adapter 6K /" Shaft Collar A " Shim for /" Shaft 6 Updated 9//0 SHEET 9 of

20 Z-AXIS ASSEMBLY:. Assemble acme-drive onto Z-Axis plate as shown to left.. Fasten motor mount to Z-Axis plate as shown to right. The mm M6 screw on the motor mount will be used for cable track later on. ITEM NO. PART NUMBER DESCRIPTION QTY. CRP70-0 Basic CNC Nema Motor Mount 6 CRP70-0 Die-Cast ACME Bearing Block CRP0-0 Z-Axis Bearing Block Mounting Plate SK-M8- M8- HEX SOCKET HEAD CAP SCREW BHCS-M8- M8 x mm Button Head Cap Screw 6 CRP0-0 /6" Bent Z-Axis V-Con Plate Updated 9//0 SHEET 0 of

Z-AXIS ASSEMBLY:. Tighten acme screw onto /" Shaft Adapter.. Thread acme nut onto acme screw.. Slide Z-axis into gantry plate, screw in acme nut as shown (DETAIL V).

21 Z-AXIS ASSEMBLY:. Tighten acme screw onto /" Shaft Adapter.. Thread acme nut onto acme screw.. Slide Z-axis into gantry plate, screw in acme nut as shown (DETAIL V).. Tighten eccentric bushings on gantry plate (refer to sheet 7 for help on this procedure). Tighten set screws to secure screw onto /" Shaft Adapter Acme -8 8" -start Acme Screw CRP70-00 Cast Acme Nut Assembly SK-M8- M8- HEX SOCKET HEAD CAP SCREW V DETAIL V SCALE :. Updated 9//0 SHEET of

Z-AXIS ASSEMBLY:. Tighten Oldham coupler onto motor, then mount onto z-axis plate. Tighten Oldham coupler onto shaft adapter (shown below). Attach appropriate router mount to front of z- axis plate 0.

22 Z-AXIS ASSEMBLY:. Tighten Oldham coupler onto motor, then mount onto z-axis plate. Tighten Oldham coupler onto shaft adapter (shown below). Attach appropriate router mount to front of z- axis plate Oldham Oldham Coupler - /8" to /" CRP00-6E CRP-0 SK-M- SK-0-0_6 6 SK-M8-0 0 oz-in Nema Stepper Motor /8 Shaft Router Mount - Bosch Colt 70.mm Diameter M- HEX SOCKET HEAD CAP SCREW 0- X /8 HEX SOCKET HEAD CAP SCREW M8 x 0mm Socket Head Cap Screw tighten lower set screw on Oldham coupler ± Updated 9//0 6 SHEET of

23 MACHINE TABLE ASSEMBLY:. Embed T-nuts in extrusion for table fasteners. Lay machine table extrusion down and align holes with T-nuts. Thread in countersunk M8 screws to attach machine table extrusion TIP: Attach extrusion one piece at a time TNR-M8 T-Nut, Roll-in Ball, M8 8 FH-M8-0 CRP7-0 M8x. - 0mm Flat Head Socket Screw T-Slot Machine Table Extrusion 8 Updated 9//0 SHEET of

24 TOP LEVEL ASSEMBLY - ELECTRONICS BOX:. Lay electronics box in back of machine as shown.. Thread in M8Xmm screws to attach electronics box to rail plates.. Attach proximity switch bracket as shown (DETAIL W) DETAIL W SCALE :. ITEM NO. CRP7-0 BHCS-M8- PART NUMBER DESCRIPTION QTY. Basic CNC Proximity Switch Mounting Plate M8 x mm Button Head Cap Screw CRP700-00E Basic CNC Electronics Box W Updated 9//0 SHEET of

25 ITEM NO. PART NUMBER DESCRIPTION QTY. BHCS-M6- M6 x mm Button Head Cap Screw HNJ-M6 M6 Hex Nut, Jam FH-M-6 M6 x Flat Head Screw TNR-M T-nut, M, Roll-in Ball FH-M- M x Flat Head Screw CABLE TRACK INSTALLATION: Note: It may be easier to route your cables through the track prior to fastening. The cables for the Z axis go through both sets of cable track. The cables for the Y axis go though only the loewr cable track. The X axis does not use an extension cable, this motor plugs directly into the control box. Lower Cable Track. Lay out the longer cable track with two pin ends along the base of the router.. Attach one end to the moving cable track bracket using M flat head screws.. Attach the other end to the fixed cable track bracket on the rear using M flat head screws. Upper Cable Track. Thread the M6 button head cap screw through the hole in the open end of the cable track then bolt onto the Nema motor mount on the Z axis as shown.. Secure the pin end of the cable track to the closer slot of the gantry extrusion using the m roll in tnut and a M flat head screw. Plug the provided emergency stop unit into the port labeled "E-Stop". This allows the motors to be enabled Updated 9//0 SHEET of

CRP700 Benchtop Basic CNC Machine Assembly Instructions. Updated 10/24/2014 SHEET 1 of 24

CRP700 Benchtop Basic CNC Machine Assembly Instructions Updated 0//0 SHEET of NOTE: This piece of extrusion is mounted wide side up Quick Tip: Lay extrusion on table as shown for easy assembly BASE ASSEMBLY:.