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                                                                                                  Last updated: 08/13/20108      Rev. 9 

R7 Build Instructions 

1.

 

I

NTRODUCTION

 

The R7 is so named as this was the revision the SMW3D/ Hobby-Fab team released; this DIY CNC router 
kit. The kit is fully open source. In addition, the kit was released in beta and all feedback taken to 
improve build and functionality. Thank you for joining us on this journey. We truly hope this build will 
help makers to achieve the satisfaction of creating a machine that will provide years of creativity with 
their own two hands. 

2.

 

S

ET

-

UP

 

We would love for you to rip o

pen this package like it’s Christmas morning and you are eight years old 

again. We must warn though, we have individually bagged the steps and they will match the below 
inventory as well as the videos on YouTube on the SMW3D/Hobby-Fab page. The videos are labeled 
R7v1, this means R7 video one, etc. Please DO NOT open every bag and dump the build on the table. 
This will severely impact your build time and locating the proper parts for the steps. The build videos are 
very outdated, they should only be used for reference. 

We also advise finding a large, clean, flat surface to build your kit. The first few steps can certainly be 
performed on a smaller surface however, as the build grows, you will need a four foot by four-foot area 
flat surface. It is also advised that you lay out each step individually with all parts for the respective step. 
Lastly, before starting the build, please note the BOM (Bill of Materials) is described below and two 
columns are present after the item description. Please open each bag prior to build and count each item 
and check it off the below list. If anything is missing, please contact us at 

[email protected]

Performing this task now will prevent having to put off your build in the event we missed something.  

Finally, please have fun and take your time. The build process will control all your cuts after, build it 
once and build it right. The machine will provide years of great service.  

Tools Required: (all should be locally available)     Additional Items Required 

Metric allen wrench set                                                 Bucket for water 

Soldering iron and solder                                              Table 

Metric tap set                                                                  Computer 

8mm combination wrench                                            USB A to B cable 

10mm combination wrench  

 

 

     Square and level 

Содержание R7

Страница 1: ...e very outdated they should only be used for reference We also advise finding a large clean flat surface to build your kit The first few steps can certainly be performed on a smaller surface however as the build grows you will need a four foot by four foot area flat surface It is also advised that you lay out each step individually with all parts for the respective step Lastly before starting the ...

Страница 2: ...t the machine Z gantry plate limit faces down All wired NO Step One In the first step you will be assembling the Y gantry plates These plates will run on the side of the R7 as you are facing the machine One notable change from the videos is the 2mm shims are no longer needed At the end of this step you will have two assembled Y gantry plates each with eight mini wheels and three large wheels all o...

Страница 3: ... STEP 1 Qty Smw3D Builder Y Gantry Plate LH 1 Y Gantry Plate RH 1 Large Xtreme Wheels 6 Mini Delrin Wheels 16 Adjustable Tension Anti Backlash Nut 2 6mm Spacers 8 6mm Mini Eccentric Spacers 14 3mm Spacers 4 M5x20 Bolt 4 M5x25 Bolt 22 ...

Страница 4: ...it Begin by installing the standard spacers on the smaller holes bottom row these will be a reference for the rest of the wheels Tighten these with a small amount of torque do not tighten so much that the wheel drags or locks Next install the next row up eccentric spacers and mini wheels Before tightening turn the eccentrics until the wheel on this bolt is as close to the reference wheel below it ...

Страница 5: ...ible to collapse the block Simply snug up and use lock tight You can adjust the tension on the ACME block at this time if you so choose Insert one of the ACME threaded rods into the block and adjust the set screw until there is slight resistance while trying to turn the ACME rod through the block Do not overdo it You can always adjust this after the build is complete ...

Страница 6: ...Last updated 08 13 20108 Rev 9 6 Limit switch and barrier block shown installed ...

Страница 7: ...s 12 3mm Spacers 2 M5x20 2 M5x25 16 Note that all wheels are installed with eccentric spacers in this step to allow adequate room for the Z gantry To begin assembly note that one side of the plate has recesses We will be installing bolts from this side and the eccentric and regular spacers on the other side Also you will note one side of the inner gantry wheel holes is smaller in diameter we call ...

Страница 8: ...Last updated 08 13 20108 Rev 9 8 Install the outer wheels and turn the eccentrics until the outer wheels touch the C beam The ACME block is installed in the same fashion as the first step ...

Страница 9: ...Last updated 08 13 20108 Rev 9 9 Note limit switch on bottom of plate these wires will remain loose till install ...

Страница 10: ...ference wheels as a base and adjust the eccentrics to touch the inside of the sample beam 250mm length Z Continue by installing the ACME block with the supplied 3mm spacers and M5 x 20mm bolts Again it is a good idea to adjust the tension on the ACME block at this time Note this plate is completely remodeled but the assembly remains the same ...

Страница 11: ...Last updated 08 13 20108 Rev 9 11 Notch in plate faces down Limit switch on the left hand side looking at the plate ...

Страница 12: ...pdated 08 13 20108 Rev 9 12 STEP 3 Qty Smw3D Builder Rear XZ Gantry Plate 1 Adjustable Tension Anti Backlash Nut 1 Mini Delrin Wheels 8 3mm spacers 2 m5x20 2 m5x25 8 6mm Spacers 4 6mm mini eccentric spacers 4 ...

Страница 13: ...entrics have them spaced out slide your 250mm length C beam in and adjust the tension evenly Turn of a revolution on the two eccentrics on one axle at a time Start with the far left top corner then go to the top right corner then the right bottom then the left bottom If all are touching you re done If not repeat by turning each axle eccentrics of a rev again Once the outside wheels all touch move ...

Страница 14: ...Last updated 08 13 20108 Rev 9 14 STEP 4 Qty Smw3d Builder Large Xtreme Wheels 16 9mm Spacers 8 6mm Mini Eccentric Spacers 16 M5x60 8 ...

Страница 15: ...e cautious with these Do not try to bend them or force them open with excessive force Simply slide the clamp on the end of the C Beam install with a T nut and M5 x 8 screw on both sides and tighten The clamp will be tight when installing the spindle You can gently spread the clamp by hand and slide in the spindle The clamps should be on the stainless caps of the spindle STEP 5 Qty Smw3d Builder 80...

Страница 16: ...8 Rev 9 16 Note you can see both limit switches from the back view The Z limit wires can now be moved directly up in relation to the picture and through the notch in the rear plate and inserted into the Z Axis screw terminals ...

Страница 17: ... of the machine at this time and debate if there will be an advantage to the motor being mounted on one side or the other for space reasons The M5x15mm bolts will hold the beams to the Y gantry plates The bearings will fit into the recesses in the outside of the Y gantry plates The ACME will thread through the anti backlash nut on the X gantry we built in a previous step Prior to installation it i...

Страница 18: ...ted 08 13 20108 Rev 9 18 STEP 6 Qty Smw3d Builder M5x15 10 M5x55 2 1 5in spacers 2 608ZZ Bearing 2 8mm lock collar 1 6 35x8 Coupler 1 1000mm Acme 1 1000mm 20x20 1 1000mm C Beam 1 NEMA 23 2 8A 1 Shim 12 5x8x1 5 2 ...

Страница 19: ...Last updated 08 13 20108 Rev 9 19 ...

Страница 20: ...08 Rev 9 20 Above the motor installation is shown Use the two longer bolts and spacers to attach the motor Install the bearing washer and coupler as shown Tighten all set screws on the coupler once the ACME is fully engaged ...

Страница 21: ...even bag you will find an ACME nut plate Use this to push the lock collar flush against the bearing and remove any slack from the drive Excessive force is not needed Simply tighten down the nut plate while holding the coupler on the other end then tighten the set screw Remove the nut plate afterward ...

Страница 22: ...st but we will be mounting end caps instead of Y gantry plates Step 7 Qty Smw3d Builder NEMA 23 2 8A 2 6 35x8 Coupler 2 Machined end corner caps 4 Lock collar 2 608ZZ 4 C Beam 1000mm 2 1 5 spacers 4 M5x55mm bolts 4 M5x20mm bolts 20 Single corner bracket 4 M5 nuts 4 1000mm ACME 2 ACME flange nut 1 Shim 8mm 4 Each corner bracket holds the ACME in place and retains the build to the board ...

Страница 23: ...dated 08 13 20108 Rev 9 23 Front machined end caps shown above The L shape should face the inside of the C of the beam Rear machined plates have been modified installation is the same but now has wiring blocks ...

Страница 24: ...ler board near the last step when we can square the build If you choose to install them now thread the ACME in until the Y gantry plates are the same distance from the corner plates Then install the corner plates square with the front edge of the spoiler board Y rear machined end plates ...

Страница 25: ...antry with the spindle and prepare to install this with the 250mm ACME This axis is in compression versus the previous tension set ups Step 8 Qty Smw3d Builder C beam end plates 2 M5x55mm 2 1 5 spacers 2 250mm ACME 1 688zz 2 6 35mm x 8mm coupler 1 Nema 23 1 M5x25mm 8 8mm Lock Collar 2 Shim 12 5x8x1 5 2 ...

Страница 26: ...m and bearing into the recess on the plate Attach the motor as in the previous step On the lower portion perform the same task Slide a lock collar bearing and shim then the plate over the bottom of the ACME Lock the axis in place by tightening the set screw on the lower lock collar Watch the play in the Z final assembly You should not be able to wiggle the spindle up and down Sometimes it is easie...

Страница 27: ...Last updated 08 13 20108 Rev 9 27 ...

Страница 28: ...Last updated 08 13 20108 Rev 9 28 ...

Страница 29: ...e cable chain down either the left or right side of the build Mount one end to the y gantry plate One plate will have a threaded hole in the middle of the hobby fab logo this is for the Y cable chain Reduce the Y cable chain to half the shipped length You will need to remove one end of the cable chain If you remove the proper end you will be left with a hole in the side of the cable chain where th...

Страница 30: ...Last updated 08 13 20108 Rev 9 30 ...

Страница 31: ...oute wires and cooling hoses through both Install the water tubing by taking the nuts off the top of the spindle Install a hose and route through both cable chains to exit at the rear of the machine Route a hose to your tank and attach to the top of water pump Route another hose to the tank and allow to flow into the tank The video R7v9 provides a good example of a tank you can use If your tank is...

Страница 32: ...Last updated 08 13 20108 Rev 9 32 ...

Страница 33: ...ps cnc js org docs desktop app Download the appropriate desktop app for your system OS windows etc Open CNC js Look for a connection window on the top left hand side Power the machine Under port hit the refresh button use the drop down to find the USB port A blue button labeled Open is also in the connection window Click this button You should now be connected You must home the machine prior to jo...

Страница 34: ...nfiguring Grbl v0 9 Scroll down a bit and you will see a set of numbers 1 through 132 below this is an explanation of what each does Related to the example above if X moves the opposite direction we tell it we would need to set 3 1 based on this information Setting Value Mask Invert X Invert Y Invert Z 0 00000000 N N N 1 00000001 Y N N 2 00000010 N Y N 3 00000011 Y Y N 4 00000100 N N Y 5 00000101 ...

Страница 35: ...f the spindle it should turn to the right The machine is set up and ready to be used Play around with the settings Set travel limits set max velocities and accelerations Have a read on our page about How to CNC here https www smw3d com blog how to cnc Read about feeds and speeds here https www smw3d com blog what is the right feeds and speeds for my cnc router kit Explore the machine explore softw...

Страница 36: ... suppression equipment close at hand and prepared for an emergency SMW3D Hobby Fab J Tech and affiliated groups hold no liability to property personal or any other damage created from the use of this product The purchase and use of this laser add on system is strictly the end user s liability and responsibility to ensure safe use Specifications Please see the J tech instruction manual for full det...

Страница 37: ...wn above on the 400 watt spindle 600w and 800w are identical These holes should center the laser in the Y plane with the spindle center Open the laser package and look for a small bracket that will fix a fan to the back of the diode laser ...

Страница 38: ...aser should face downwards with the fan mounted on the bracket with the Sunon logo facing the diode It is advised to install the laser M3 bolts with blue thread lock The laser diode and fan wire should be routed through both the X and Y cable chain and exit near the control box area ...

Страница 39: ...Last updated 08 13 20108 Rev 9 39 The laser diode will connect to the driver board on the H3 header and the fan will connect to the fan header ...

Страница 40: ...t updated 08 13 20108 Rev 9 40 1 Shown uninstalled for relation Next connection will be the PWM signal Regardless of the GRBL controller sent we will utilize the PWM and signals to control the laser power ...

Страница 41: ...o the laser connector connect the other end to the PWM positive and negative connections on the board Polarity matters On the all in one controller the accessory port yellow is PWM blue is PWM Connect the supplied power supply with the barrel connector to the laser driver board The laser add on is now ready for use ...

Страница 42: ... gcode into your communication software such as CNC js or bCNC Locate the serial port box in CNC js this is the black box in the middle of the left hand side of the screen bCNC this is the upper right hand corner of the screen a tab called terminal Type and hit enter Note that 32 0 currently Router control is standard in this mode Type 32 1 and hit enter The machine is now in laser mode Making thi...

Страница 43: ...nce away from the work piece Set this as your Z 0 When producing gcode for laser use use a very small Z depth of cut DoC such as 001 units Also clearance height can be reduced to 0 for maximum efficiency The number one mistake we make here is forgetting to turn the machine back to router mode After laser operations recall to set 32 0 Any questions please do not hesitate to contact us we will happy...

Страница 44: ... dislodged If the shipping box is severely damaged upon receipt please DO NOT PLUG THE BOX INTO A WALL OUTLET The box is internally grounded and fused for both AC and DC but your safety is top priority a damaged box should not be used SMW3D Hobby Fab and related affiliates hold no responsibility for damage to equipment or persons by using this product Be safe be smart build CARE The control box is...

Страница 45: ... Y Axis Black White Y axis limit switch Yellow Blue 1A 1B stepper motor pair Red Green 2A 2B YNL this is only needed on gantry style machines with two Y motors YNL stands for Y axis no limit the black and white wires are not present on this axis Yellow Blue 1A 1B stepper motor pair Red Green 2A 2B Z Axis Black White Z axis limit switch Yellow Blue 1A 1B stepper motor pair Red Green 2A 2B NOTE If y...

Страница 46: ...ws power to the control board Step 3 Plug in a USB style Mouse and Keyboard to either USB port on the front Step 4 Plug an HDMI monitor into the port on the face Step 5 Plug the 110VAC cable into the fused connection on the far left Step 6 Turn on the master switch ACC X Y YNL Z ...

Страница 47: ...splay a logo while boot up is taking place Once this splash screen is complete the system will open to bCNC and connect automatically THE MACHINE MUST BE HOMED PRIOR TO JOGGING There is a home button on the control tab at the upper left hand corner Click home You should expect the Z axis to go up touch the limit switch go down then come back up After this action X and Y should both start moving to...

Страница 48: ...d hit enter and your current 3 1 and your Z was going the wrong direction try 3 6 hit enter Try homing the machine again Continue the above till all 3 axis are homed Post the above exercise and homing you are ready to CNC Play around inside bCNC and read more at the links provided within this document Setting workpiece zero is as simple as jogging to the location and clicking the X 0 y 0 z 0 butto...

Страница 49: ...Last updated 08 13 20108 Rev 9 49 Please email or call if there are any issues we are happy to assist contact hobby fab com or 346 333 6500 ...

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