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OutBack CNC Version 1.1 Mechanical Assembly Instructions
IMPORTANT
Who is this Manual for?
Customers who purchased their OutBack CNC Kit from MakerStore.com.au AFTER 1st of January 2023.
Who is this Manual NOT for?
- Customers who purchased their OutBack CNC Kit from MakerStore.com.au BEFORE the 1st of January 2023. (CLICK HERE for the correct Manual)
- Customers who purchased their OutBack CNC Kit from MakerStore.cc (CLICK HERE for the correct Manual)
OutBack CNC
Version 1.1
Mechanical Assembly Instructions
Safety Statement
The author of this document is not liable or responsible for any accidents, injuries, equipment damage, property damage, loss of money or loss of time resulting from improper use of electrical or mechanical or software products.Assembling electrical and mechanical CNC machine components like power supplies, motors, drivers or other electrical and mechanical components involves dealing with high voltage AC (alternating current) or DC (direct current) and other hazardous items which can be extremely dangerous and needs high attention to detail, experience, knowledge of software, electricity, electro-mechanics and mechanics.
BEFORE MAKING ANY CONNECTIONS OR DISCONNECTIONS POWER MUST BE REMOVED FROM THE DEVICE AND THE CONTROLLER. FAILURE TO DO SO WILL VOID ANY AND ALL WARRANTIES.
Before starting please read though all the instructions.
Note
For Australian Customers: If you have purchased Outback CNC after 01/01/2023, please follow this manual. Otherwise follow the Outback CNC V1 manual.
Click here to view Outback CNC V1 manual
About the OutBack CNC Kit
The OutBack CNC Machine is our strongest, most rigid CNC Router model. It has an upgraded motion system on all Axis to heavy-duty HGR and MGN linear rails with recirculating ball bearing sliders. The HGH15CA Bearing is commonly seen on larger automation systems and CNC Machines with heavy duty linear actuators. By securing steel linear rails to the aluminum extrusion, as well as using recirculating captive bearings, the rigidity and overall dynamic strength of the OutBack CNC immensely increased.
The OutBack CNC also has an upgrade to the X-Axis and Y-Axis C-Beam Extrusions to our famous C-Beam HEAVY which has a 72% improvement when compared to a standard C-Beam under the same conditions.
Please note that while we have spent a considerable amount of time and effort putting these instructions together, any errors and omissions excepted (E&OE). If you find an error, please let us know so we can continually improve this resource for the community.
Difference between Outback CNC V1 and V1.1:
- In the Outback CNC V1.1, the motor plates have been replaced with Aluminium Spacers (EDG Plates have been removed)
- The Coupler 6.35 – 8mm has been replaced with Coupler 8 – 8mm (Australian Customers only)
- The 6.35mm shaft stepper motor has been replaced with 8mm shaft stepper motor (Australian Customers only)
Tools Required
You will need the following tools:
- 3mm Allen Key
- 2.5mm Allen Key
- 2mm Allen Key
- 8mm Spanner
- Screw Drivers
- Builder’s Square
- Various other common tools
Pre-Assembly Notes
We recommend that you read through the whole assembly guide before beginning the build, as this enables you to get a rough idea of how it all goes together. Before starting each step make sure you have studied the drawings and fully understand the instructions.
When attaching parts, if a part is requiring significant force to attach, stop, take it off, re-read the instructions and try again. Do not over tighten screws as you may strip the thread or head.
If you have any questions regarding the build please contact us at [email protected], we are happy to help!
The parts required to complete the build are listed below:
Bill of Materials
1.0 Y-Axis Assembly
1.1 Y Extrusion and HGR Rails
Please note: The number of holes per rail may vary slightly. This means the number of Screws and T-Nuts will also vary. To allow for this we provided 10% extra Screws and T-Nuts for all Linear Rail.
| Item | Description | Quantity |
| 1 | C-Beam (1000 or 1500mm) | 1 |
| 2 | HGR Linear Rail | 1 |
| 3 | M4 Sliding T-Nut | 17 or 25 |
| 4 | M4 x 14mm Socket Head | 17 or 25 |
Insert the M4x 14mm Socket Head through the HGR Rail and thread on the M4 Sliding T-Nut 1/2 a turn. These will be tighten when aligning the Rails.
Repeat this for all Y-Axis HGR Rails.
Slide the HGR Rail Assembly into the top channels of the C-Beam as per the images.
Repeat for both lengths of the Y-Axis.
Pro Tip: Sliding the HGR Rails and Sliding T-Nuts can be difficult, get another person to help you hold the rail straight while sliding the T-Nuts into the C-Beam.
1.1.1 HGR Rail and alignment tool
Using the Linear Rail Alignment Tool (Provided with all Outback Kits), align the HRG Linear Rail as shown.
Start at one end, press the tool so it is flush (as in the image) and move down to every second (odd number) screw aligning and tightening as you go. When you reach the end, return to the start tightening the even number screws.
When done, double check your alignment and repeat if necessary. The tool is a guide and aids in alignment and works well if used carefully and checked as you go. For more exact alignment a dial gauge and a datum edge can be used (this process is not covered here).
Pro Tip: Align the hole in the tool above the screw and place your Allen Key through to tighten the screw.
1.1.2 HGR Bearing Blocks
Slide the two HGR Bearings on to the HGR Rails.
Pro Tip: To avoid loosing any ball bearings keep the support that comes with the packaging on the bearing block. When installing the bearing block onto the rail, use the rail to push the plastic support rail out of the block, this ensures the steel balls are under tension and have contact with a rail at all times.
Note: Although the drawing does not depict this, it is best practice to have the grease nipple facing outwards to allow easier access during maintenance.
1.2 Gantry Plates
1.2.1 Nut Blocks
| Item | Description | Quantity |
| 1 | Y Plate | 1 |
| 2 | M5 x 20mm Socket Head | 4 |
| 3 | Nut Block TR8x8(P2) | 2 |
| 4 | M5 Nylon Lock Nut | 4 |
Attach 2 x Nut Blocks to the inner face of the Y Plate using 4 x M5 20mm Socket Head Screws and 4 x M5 Nylon Nuts. Only loosely tighten these screws so the Nut Blocks can still move slightly. These will be tightened later.
Repeat for both Y Plates.
1.2.2 Screwing Y Plates To The HGR Bearings
| Item | Description | Quantity |
| 1 | M4 x 12mm Socket Head | 8 |
Attach the Y Plate to the HGR Bearings using 8 x M4 12mm Socket Head Screws.
Pro Tip: Positioning the HGR Bearings can be tricky, loosely attach one screw to each bearing before doing the remaining screws. When tightening the screws, tighten all screws completely and then loosen them 1/8th of a turn.
This image shows a view looking up from under the plate, bearings and extrusion. Note how the Nut Blocks are inside the two bearings.
Pro Tip: When you tighten the screws, make sure to do in the order indicated:
- top left
- bottom right
- top right
- bottom left
This is a good practice to follow and should be used for most pattern fastenings.
1.3 Spoiler Board T-Nuts and Brackets
| Item | Description | Quantity |
| 1 | M5 x 8mm Button Head | 24 or 40 |
| 2 | M5 T-Nut | 24 or 40 |
| 3 | Double L Bracket | 6 or 10 |
Attach the Double L Brackets to the under side of the C-Beam Y Axis.
Leave all the bracket loose, as we will tighten after the base 2040 V-Slot is connected.
Do this for both Y Axis.
Pro Tip: Make sure to slide all the T-Nuts into the C-Beam Slot before attaching the brackets. It is best to do the middle brackets first and work outwards.
Note: The drawings shown are for a 1000mm Y Axis with 3 sets (6 Brackets) of Brackets, screws and T-Nuts. The 1500mm version will require 2 more sets - 5 bracket and screw sets in total (i.e., 10 Double L Brackets).
1.4 Spoiler Board Extrusion
Attach the 2040 Extrusion for the Spoiler Board Base by sliding into the T-Nuts for the Double L Bracket from the previous step.
This is can be difficult and so take your time. It may help to remove the screws from the Double L Brackets and then re-inset them (make sure to do the inner ones first, other wise you may have to undo to add extra T-Nuts into the slots).
Do this for both Y Axis, making sure to orientate everything correctly.
Pro Tip: This step is a good time to check everything is correct, facing the right way and generally looks alright without mistakes.
Note: This is not the final position of the 2040 Spoiler Board extrusion, so tighten so everything is loose but firm (i.e., not wobbling around but also not super tight).
1.5 End Plates
| Item | Description | Quantity |
| 1 | M5 x 16mm Socket Head | 4 |
| 2 | M5 x 20mm Socket Head | 8 |
| 3 | M5 Sliding T-Nut | 4 |
| 4 | Y Axis End Plate | 1 |
| 5 | 2040 Extrusion | 1 |
Attach the Y Axis End Plates (#4) to the Y-Axis Assembly.
Use 4 x M5 x 16mm Socket Head Screws (#1) and 4 x M5 Sliding T-Nuts (#3) to attach the Y End Plate (#4) to the front/back 2040 Base extrusion (#5). Don't tighten as this will be adjusted in later steps.
Attach the Y Assembly to the Y Axis End Plate by resting the Assembly onto the 2040 Base Extrusion and fix using the 8 x M5 x 20mm Socket Head Screws (#2) - these can be tightened.
Repeat for front and back, and again for the other Y Axis.
Once all 4 Y Axis End Plates are attached the build should look similar to the image.
Note: This are still going to be moved around, squared and aligned. So there is no need to tighten everything yet.
1.6 Lead Screws
1.6.1 Inserting the Lead Screw
| Item | Description | Quantity |
| 1 | TR8x8(P2) x 1070mm | 1 |
| 2 | 8mm Lock Collar | 1 |
| 3 | 688Z Bearing | 1 |
| 4 | F8-16M Thrust Bearing | 1 |
| 5 | Lead Screw Tensioning Nut | 1 |
Push the Y Gantry Assembly to one the back. Insert the TR8x8(P2) Lead Screw (#1) making sure the bearings and collars are in the correct order.
Continue sliding the Lead Screw in. When it connects with the Nut Blocks, rotate the Lead Screw so it 'screws' into and through the two Nut Blocks. You may need to slide the Nut Blocks and screws along the Y Plate screw slots until the Lead Screw and two Nut Bocks find their correct spacing.
Continue until the Lead Screw extends around 100mm out the other side of the Y Plate.
1.6.2 Lead Screw Nut End
| Item | Description | Quantity |
| 1 | TR8x8(P2) x 1070mm | 1 |
| 2 | 8mm Lock Collar | 1 |
| 3 | 688Z Bearing | 1 |
| 4 | F8-16M Thrust Bearing | 1 |
| 5 | Lead Screw Tensioning Nut | 1 |
Push the Y Gantry and Lead Screw to the front and guide the Lead Screw through the front Y End Plate. Make sure to thread the Lead Screw with the 8mm Lock Collar (#2) and 688Z Bearing (#3).
Then thread the F8-16M bearing (#4) and screw the Lead Screw Tensioning Nut (#5) onto the end. Just screw it on enough so the Lead Screw is just flush with the face. It will be tightened later.
1.6.3 Lead Screw and Attaching the Motor
| Item | Description | Quantity |
| 1 | M5 x 65mm Socket Head | 4 |
| 2 | Stepper Motor | 1 |
| 3 | Motor Spacer | 4 |
| 4 | Coupler 8 - 8mm | 1 |
Making sure the 688z and F8-16M Bearings and 8mm Lock Collars are correctly positioned, attach the 8-8mm Jaw Coupler (#4) to the Lead Screw.
Thread the 4 x M5 x 65mm Socket Head (#1) screws through the Stepper Motor (#2) and 4x Motor Spacers (#3). Align the Motor shaft with the Coupler (#4) and tighten the 4 M5 x 65mm Socket Head (#1) screws.
Note: It is recommend that the Motor Spacers (#3) are mounted horizontally (as in the image) to make cabling and connecting easier at a later stage.
2.0 X-Axis Assembly
2.1 X Axis Extrusion and HGR Rails
2.1.1 4040 Support
| Item | Description | Quantity |
| 1 | C-Beam | 1 |
| 2 | 4040 V-Slot | 1 |
| 3 | M5 x 8mm Button Head | 12 or 20 |
| 4 | 90 degree Angle Corner Connector | 6 or 10 |
| 5 | T-Nut | 12 or 20 |
Using the 90 Degree Corner Brackets(#4), M5 x 8mm Button Head (#3) screws and M5 T-Nuts (#5) attach the 4040 V-Slot (#2) to the X Axis C-Beam (#1).
For 1000mm X Axis Use:
- 3 x 90 Degree Corner Brackets on top
- 3 x 90 Degree Corner Brackets on bottom
For 1500mm X Axis Use:
- 5 x 90 Degree Corner Brackets on top
- 5 x 90 Degree Corner Brackets on bottom
Pro-Tip: Use a straight edge to align the ends of the C-Beam and 4040. It is important that they are flush at both ends. If not then sand or file gently the piece that is longer.
2.1.2 HGR Rail and alignment tool
Please note: The number of holes per rail may vary slightly. This means the number of Screws and T-Nuts will also vary. To allow for this we provided 10% extra Screws and T-Nuts for all Linear Rail.
| Item | Description | Quantity |
| 1 | M4 x 14mm Socket Head | 34 or 50 |
| 2 | HGR Linear Rail | 2 |
| 3 | M4 Sliding T-Nut | 34 or 50 |
Insert the M4x 14mm Socket Head through the HGR Rail and thread on the M4 Sliding T-Nut 1/2 a turn. These will be tighten when aligning the Rails.
Repeat this for the other X Axis HGR Rails.
Slide the HGR Rail Assemblies into the channels of the C-Beam as per the images.
Pro Tip: Sliding the HGR Rails and Sliding T-Nuts can be difficult, get another person to help you hold the rail straight while sliding the T-Nuts into the C-Beam.
2.1.2 HGR Rail and alignment tool
Using the Linear Rail Alignment Tool (Provided with all Outback Kits), align the HRG Linear Rail as shown.
Start at one end, press the tool so it is flush (as in the image) and move down to every second (odd number) screw aligning and tightening as you go. When you reach the end, return to the start tightening the even number screws.
When done, double check your alignment and repeat if necessary. The tool is a guide and aids in alignment and works well if used carefully and checked as you go. For more exact alignment a dial gauge and a datum edge can be used (this process is not covered here).
Pro Tip: Align the hole in the tool above the screw and place your Allen Key through to tighten the screw.
2.1.3 HGR Bearing Blocks
Slide the four HGR Bearings on to the HGR Rails.
Pro Tip: To avoid loosing any ball bearings keep the support that comes with the packaging on the bearing block. When installing the bearing block onto the rail, use the rail to push the plastic support rail out of the block, this ensures the steel balls are under tension and have contact with a rail at all times.
Note: Although the drawing does not depict this, it is best practice to have the grease nipple facing outwards to allow easier access during maintenance.
2.2 Gantry Plate
2.2.1 Nut Blocks
| Item | Description | Quantity |
| 1 | M5 x 45 Button Head | 4 |
| 2 | X Axis Plate | 1 |
| 3 | Drive Nut Spacer | 2 |
| 4 | Nut Block TR8x8(P2) | 2 |
| 5 | M5 Nylon Lock Nut | 4 |
Attach the Nut Spacer (#3) and Nut Block (#4) to the X Axis Plate (#2) using the 4 x M5 x 45 Button Head (#1) screws and the M5 Nylon Lock Nuts (#5).
Tighten so that they are firm but still loose and can be adjusted.
2.3 Screwing the X Gantry Plate To The HGR Bearings
| Item | Description | Quantity |
| 1 | M5 Nylon Lock Nut | 4 |
| 2 | Nut Block TR8x8(P2) | 2 |
| 3 | Drive Nut Spacer | 2 |
| 4 | X Axis Plate | 1 |
| 5 | M5 x 45mm Low Profile | 4 |
| 6 | M4 x 10mm Button Head | 16 |
Using the M4 x 10 Button Head (#6) screws attach the X Axis Plate to the four HGR15 Bearings.
Pro Tip: Positioning the HGR Bearings can be tricky, loosely attach one screw to each bearing before doing the remaining screws. When tightening the screws, tighten all screws completely and then loosen them 1/8th of a turn.
Pro Tip: When you tighten the screws, make sure to do in the order indicated:
- top left
- bottom right
- top right
- bottom left
This is a good practice to follow and should be used for most pattern fastenings.
Slide the gantry to one end and tighten all four HGR bearing screws. Slide the gantry to the other end and make sure there is smooth motion along the entire length. If it gets stiffer or jammed while moving to along the rails, check the spacing of the HGR Rails and try again.
If it is still stiff or jams, us the Alignment Tool on the bottom rail and leave the top rail loose. Move the gantry to one end, making sure the bearings are screwed to the X Axis Plate firmly, then tighten the end most screw on the rail. Slide the gantry to the other end and tighten the other end most screw. Move to the middle and tighten the screw closest to the gantry. Now test again. The gantry should slide smoothly along the entire length.
If the gantry still jams, repeat the above until it runs smooth. The vast majority of problems of stiff gantries is because of incorrect alignment. Be patient, it can take some time to get the alignment correct.
Pro-Tip: The best way to get smooth gantries is to use a datum. Spend time, and use the Alignment Tool, to make sure the bottom HRG rail is correctly aligned on the C-Beam, and use that as the datum for the top HGR Rail and gantry/bearings.
2.4 Attaching The X-Axis To The Y-Axis
| Item | Description | Quantity |
| 1 | M5 x 8mm Button Head | 6 |
| 2 | M5 x 12mm Button Head | 6 |
| 3 | 90 degree Angle Corner Connector | 6 |
| 4 | M5 T-Nut | 6 |
Using the M5 x 8mm Screws, attach the 90 degree Angle Corner Connectors to the C-Beam and the 4040 Support. Leave them all loose but firm and not sliding around.
Align the X Axis up to the Y Plate and using the M5 x 12mm screws attach the X Axis to the Y Plate.
Do this for both sides.
Pro-Tip: Get something or someone to support the other end of the X Axis while positioning the X Axis and the Y Plate.
Note the location of the 6 x 90 degree Angle Corner Connectors.
| Item | Description | Quantity |
| 1 | M5 x 20mm Socket Head | 8 |
Use the eight M5 x 20mm (#1) screws to secure the X Axis to the Y Plate.
Repeat on both sides.
Tighten all the screws for the XY Assembly (plate screws and brackets).
2.5 Lead Screw
2.5.1 Inserting the Lead Screw
| Item | Description | Quantity |
| 1 | Lead Screw Tensioning Nut | 2 |
| 2 | F8-16M Thrust Bearing | 2 |
| 3 | 688Z Bearing | 2 |
| 4 | 8mm Lock Collar | 2 |
| 5 | Coupler 8 - 8mm | 1 |
| 6 | Motor Spacer | 4 |
| 7 | Stepper Motor | 1 |
| 8 | M5 x 60mm Socket Head | 4 |
| 9 | Precision Shim – 10 x 5 x 1mm | 4 |
Using the same process as for the Y-Axis, insert the Lead Screw through the Y Plates.
Continue sliding the Lead Screw in. When it connects with the Nut Blocks, rotate the Lead Screw so it 'screws' into and through the two Nut Blocks. You may need to slide the Nut Blocks and screws along the Y Plate screw slots until the Lead Screw and two Nut Bocks find their correct spacing.
Continue until the Lead Screw extends around 100mm out the other side of the Y Plate.
Finish by attaching the Stepper Motor (#7) as in the same way as the Y Axis above.
3.0 Z-Axis
3.1 Z Extrusion and MGN Rails
3.1.1 MGN Rails
| Item | Description | Quantity |
| 1 | 2080 V-Slot 250mm | 1 |
| 2 | MGN15 Rail | 2 |
| 3 | M3 Sliding T-Nut | 2 |
| 4 | M3 x 10mm Cap Head | 3 |
Following the same process as for the X Axis, attach and align the MGN12 Rail (#2) onto the 2080 V-Slot (#1).
Use the Alignment Tool when aligning the MGN onto the 2080.
3.1.2 MGN Bearing Blocks
Slide the four MGN Bearings on to the MGN Rails.
Pro Tip: To avoid loosing any ball bearings keep the support that comes with the packaging on the bearing block. When installing the bearing block onto the rail, use the rail to push the plastic support rail out of the block, this ensures the steel balls are under tension and have contact with a rail at all times.
Note: As in the drawing have the grease nipple facing upwards to allow for greater Z Axis travel.
3.2 Z Gantry Plate
| Item | Description | Quantity |
| 1 | M3 x 10mm Button Head | 16 |
| 2 | M5 x 16mm Socket Head | 2 |
| 3 | Nut Block TR8x8(P2) | 1 |
| 4 | M5 Nylon Lock Nut | 2 |
Attach the Nut Block TR8x8(P2) (#3) to the Z Plate using the M5 x 16mm (#2) screws and the M5 Nuts (#4).
Secure the Z Plate to the MGN Bearings following the same process as for the X Plate to HGR Bearings above.
Note: Make sure the Z Plate is correctly orientated on teh MGN Bearings as per drawings.
3.3 End Plates
| Item | Description | Quantity |
| 1 | M5 x 15mm Low Profile | 4 |
| 2 | Z End Plate | 1 |
Attach the Z End Plate (#2) to the 2080 V-Slot using the 4 x M5 x 15mm Low Profile (#1) screws.
Repeat for the other end.
3.4 Z Axis Lead Screw and Stepper Motor
| Item | Description | Quantity |
| 1 | 688Z Bearing | 2 |
| 2 | 8mm Lock Collar | 2 |
| 3 | Coupler 8 - 8mm | 1 |
| 4 | Motor Spacer | 2 |
| 5 | Stepper Motor | 1 |
| 6 | M5 x 65mm Socket Head | 4 |
Using the same process as for the X and Y Axis, insert the Lead Screw through the Z End Plates.
Continue sliding the Lead Screw in. When it connects with the Nut Block, rotate the Lead Screw so it 'screws' into and through the two Nut Block.
Continue until the Lead Screw extends around 100mm out the other side of the Z End Plate.
Finish by attaching the Stepper Motor (#5) as in the same way as the X Y Axis above.
3.5 X-Z Mating
| Item | Description | Quantity |
| 1 | Shim 10x5x1 | 4 |
| 2 | M5 x 20mm Socket Head | 4 |
Using the four Shims (#1) and four M5 x 20mm Socket Head (#2) screws attach the Z Assembly to the X Plate.
4.0 Cable Drag Chain (CDC) Support
4.1 CDC 15 x 30 Support
Y-Axis:
For Y-Axis you will need the following components from the pack labelled as PACK-OTBV1-SB1000-OTB01:
| Item | Description | Quantity |
| 1 | M5 x 8 Button Head | 8 |
| 2 | End Cap – 2040 | 2 |
| 3 | M5 Sliding T-Nut | 2 |
| 4 | 2040 V-Slot 1000/1500mm | 1 |
| 5 | 90 degree Angle Corner Connector | 2 |
Step1: Slide 2x Sliding T-Nut into the lower groove of 2040 V-Slot 1000/1500mm, one on each end. Attach 2x End Cap - 2040 to 2040 V-Slot 1000mm, one on each end, using 4x M5 x 8 Button Head. See the image on the right.
Step 2: Attach 2x 90 degree Angle Corner Connector, one on each end of 2040 V-Slot 1000/1500mm using 2x M5 x 8 Button Head, as shown in the image on the right.
Step 3: Using 2x M5 x 8 Button Head, attach the above assembly to the 2040 V-Slot Spoiler Board Extrusion. See the images below for reference.
X-Axis:
For X-Axis you will need the following components from the pack labelled as PACK-OTBV1-X1000-OTB08:
| Item | Description | Quantity |
| 1 | M5 x 16 Button head | 2 |
| 2 | M5 x 6 Button Head | 2 |
| 3 | Slot Washer | 2 |
| 4 | M5 x 5 Spacer | 2 |
| 5 | End Cap 2020 | 3 |
| 6 | 2060 V-Slot 180mm | 1 |
X-Axis:
Step 1: Slide 1x Slot Washer and 1x (M5 x 5 Spacer) onto 1x (M5 x 16 Button Head Screw ) in the said order. Repeat the same for the other M5 x 16 Button Head Screw. See the image on the right.
Step 2: Insert the above screw assemblies into the top holes of X-Axis plate as shown in the image on the right. Don't tighten the screws completely.
Step 3: Attach 3x End Cap 2020 to the 2060 V-Slot 180mm of the above assembly using 3x (M5 x 6 Button Head Screws).
Step 4: Slide the above 2060 V-Slot 180mm with the End Caps attached onto the M5 Button Head Screws 16mm attached to the X-Axis Plate and align the holes of the V-Slot with the heads of screw heads. See the images below for reference.
Step 5: Tighten the M5 Button Head Screws 16mm via the holes using an Allen Key. See the images below.
Click on the image to expand
4.2 CDC 25 x 50 Support
Y-Axis:
For Y-Axis you will need the following components from the pack labelled as PACK-OTBV1-SB1000-OTB01:
| Item | Description | Quantity |
| 1 | M5 x 8 Button Head | 10 |
| 2 | End Cap – 2020 | 6 |
| 3 | M5 Sliding T-Nut | 2 |
| 4 | 2060 V-Slot 1000/1500mm | 1 |
| 5 | 90 degree Angle Corner Connector | 2 |
Y-Axis:
Step 1: Slide 2x Sliding T-Nut into the lower groove of 2060 V-Slot 1000/1500mm, one on each end. Attach 6x End Cap - 2020 to 2060 V-Slot 1000mm, three on each end, using 6x M5 x 8 Button Head. See the image on the right.
Step 2: Attach 2x 90 degree Angle Corner Connector, one on each end of 2040 V-Slot 1000/1500mm using 2x M5 x 8 Button Head, as shown in the image on the right.
Step 3: Using 2x M5 x 8 Button Head, attach the above assembly to the 2040 V-Slot Spoiler Board Extrusion. See the images below for reference.
The assembly will look similar to the one in Chapter 4.1, the only difference is the 2060 V-Slot extrusion in place of 2040 V-Slot extrusion.
Click on the images to expand
X-Axis:
The installation of 25 x 50 CDC support on X-Axis is similar to the CDC 15 x 30. Please follow the X-Axis section of Chapter 4.1
5.0 Outback Add-Ons
5.1 Cable Drag Chain (CDC) and Bracket Mounting
5.1.1 CDC 25 x 50
For the CDC 25 x 50, please unpack the satchel labelled as PACK-CDC104
| Item Number | Description | SKU | Quantity |
| 1 | M5 Button Head Screws – 16mm | SCREWS-M5-BH-16-1 | 10 |
| 2 | M5 Button Head Screws – 12mm | SCREWS-M5-BH-12-1 | 4 |
| 3 | M5 Button Head Screws – 8mm | SCREWS-M5-BH-8-1 | 6 |
| 4 | Nylon Insert Hex Locknut – 5mm | HARD-NUT-LOCK-5MM | 10 |
| 5 | Slot Washer – 15 x 5 x 2mm | SHIM-WASH-15-5-2 | 14 |
| 6 | M5 Spring Loaded Tee Nut | HARD-TNUT-SPRING-1PC | 5 |
| 7 | Cable Drag Chain 25 x 50 | HARD-DRAG-CHAIN-25X50 | – |
| 8 | Cable Drag Chain Mounting Bracket | BRAC-CDC-V2 | 2 – 3 |
Note: This is a generic hardware pack used for different machines. Therefore, not all the components received in the pack and mentioned above will be required.
For simplification purposes, the CDC mounting process has been divided into two parts:
X-Axis:
Step 1: Insert 2x M5 Spring Loaded Tee Nut into the outer grooves of 2060 180mm V-Slot, as shown in the image on the right.
Step 2: Slide 2x Slot Washer- 15 x 5 x 2mm onto 2x M5 Button Head Screws 8mm (one on each screw).
Step 3: Line up the CDC Mounting Bracket slots with the X-Axis 2060 180mm V-Slot Tee Nuts top as shown in the image and insert the M5 Button Head Screws 8mm with washers attached into the slots of the bracket and the Tee Nuts
Step 4: Tighten the the screws to secure the assembly.
Step 5: Connect one of the CDC Ends to the X-Axis C-Beam extrusion by placing an M5 Spring Loaded Tee Nut into the outer groove of X-Axis C-Beam extrusion. Line up one of the CDC Ends hole with the Tee Nut.
Step 6: Place 1x Slot Washer onto the lined up hole of the CDC and insert 1x M5 Button Head Screw 12mm. Tighten the screw using an Allen Key to secure the assembly. See the image on the right.
Step 7: Take the other CDC End and align the holes with the slots of the CDC Mounting Bracket, as shown in the image.
Pro Tip: Ensure the CDC is straight in reference to the other attached CDC End. Adjust the mounting position on the CDC Mounting Bracket by using different slots.
Step 8: Place 2x Slot Washers onto the lined up holes (one on each hole) of the CDC and insert 2x M5 Button Head Screws 16mm.
Step 9: Tighten the above assembly using 2x Nylon Insert Hex Locknut.
Y-Axis:
Step 1: Line up the CDC Bracket Mounting Slots with the top holes of the Y-Axis plate, as shown in the image.
Step 2: Slide 2x Slot Washers onto 2x M5 Button Head Screws 16mm (one on each screw) and insert the screws into the holes which are aligned with the tapped holes of X-Axis V-Slots. Tighten the screws to secure the assembly.
Step 3: Insert 2x M5 Spring Loaded Tee Nuts into the outer grooves of the 2060 V-Slot.
Step 4: Line up the CDC End holes with the Tee Nuts. Place 2x Slot Washers onto the aligned holes of CDC and insert 2x M5 Button Head Screws 12mm through the same into the Tee Nuts.
Step 5: Tighten the screws to secure the above assembly.
Step 6: Place the other CDC End onto the Mounting Bracket and line up the CDC mounting holes with slots of CDC Mounting Bracket, as shown in the image.
Pro Tip: Ensure the CDC is straight in reference to the other attached CDC End. Adjust the mounting position on the CDC Mounting Bracket by using different slots.
Step 7: Place 2x Slot Washers onto the aligned holes of CDC and insert 2x M5 Button Head Screws 16mm through the same holes and slots of the Mounting Bracket.
Step 8: Tighten the above assembly using 2x Nylon Insert Hex Locknuts.
5.1.2 CDC 15 x 30
For the CDC 15 x 30 , please unpack the satchel labelled as PACK-CDC101.
| Item Number | Description | SKU | Quantity |
| 1 | M5 Low Profile Screws – 8mm | SCREWS-M5-LP-8-1 | 4 |
| 2 | M5 Low Profile Screws – 15mm | SCREWS-M5-LP-15-1 | 7 |
| 3 | M4 Button Head Screws – 10mm | SCREWS-M4-BH-10-1 | 8 |
| 4 | M4 Button Head Screws – 8mm | SCREWS-M4-BH-8-1 | 4 |
| 5 | Drop In Tee Nut – M5 | HARD-TNUT-DROP-M5 | 5 |
| 6 | Drop In Tee Nut – M4 | HARD-TNUT-DROP-M4 | 4 |
| 7 | Nylon Insert Hex Locknut – M5 | HARD-NUT-LOCK-5MM | 5 |
| 8 | Nylon Insert Hex Locknut – M4 | HARD-NUT-LOCK-4MM | 7 |
| 9 | Cable Drag Chain Mounting Bracket | BRAC-CDC-V2/BRAC-CDC | 2 – 3 |
| 10 | Cable Drag Chain 15 x 30 | HARD-DRAG-CHAIN-15X30 | – |
Note: This is a generic hardware pack used for different machines. Therefore, not all the components received in the pack and mentioned above will be required.
For simplification purposes, the CDC mounting process has been divided into two parts:
X-Axis:
Step 1: Insert 2x Drop In Tee Nut M5 into the outer grooves of 2060 V-Slot 180mm.
Step 2: Slide one of the Tee Nuts to the desired position and line up the CDC Mounting Bracket slot with the Tee Nut. Using 1x M5 Low Profile Screws 8mm attach the CDC Mounting Bracket to the Tee Nut in the groove.
Step 3: Repeat the above step for the second Tee Nut. This will attach the CDC Mounting Bracket to the 2060 180mm V-Slot firmly.
Step 4: Connect one of the CDC Ends to the X-Axis C-Beam extrusion by placing 2x Drop In Tee Nut - M4 into the outer groove of the X-Axis C-Beam extrusion. Line up the CDC End holes with the Tee Nuts.
Step 5: Insert 2x M4 Button Head Screw 8mm into the holes and Tee Nuts and tighten using an Allen Key.
Step 6: Place the other CDC End onto the CDC Mounting Bracket and align the holes of the same with slots of the CDC Mounting Bracket, as shown in the image.
Pro Tip: Ensure the CDC is straight in reference to the other attached CDC End. Adjust the mounting position on the CDC Mounting Bracket by using different slots.
Step 7: Insert 2x M4 Button Head Screws 10mm into the CDC End holes through the aligned CDC Mounting Bracket slots.
Step 8: Tighten the above assembly using 2x Nylon Insert Hex Locknut M4.
Y-Axis:
Step 1: Line up the CDC Bracket Mounting Slots with holes of the Y-Axis plate, as shown in the image.
Step 2: Insert 2x M5 Low Profile Screws 8mm into the slots and through the aligned holes.
Step 3: Connect one of the CDC Ends to the 2040 extrusion by placing 2x Drop In Tee Nut - M4 into the grooves of the 2040 extrusion. Line up the CDC End holes with the Tee Nuts.
Step 4: Insert 2x M4 Button Head Screw 8mm into the holes and Tee Nuts and tighten using an Allen Key.
Step 3: Place the other CDC End onto the CDC Mounting Bracket and line up the CDC Mounting holes with slots of CDC Mounting Bracket, as shown in the image.
Pro Tip: Ensure the CDC is straight in reference to the other attached CDC End. Adjust the mounting position on the CDC Mounting Bracket by using different slots.
Step 4: Insert 2x M4 Button Head Screws 10mm through the same holes and slots of the CDC Mounting Bracket.
Step 5: Tighten the above assembly using 2x Nylon Insert Hex Locknuts M4.
5.2 Limit Switches
There are two types of mechanical limit switches available for the Outback. The Micro Limit Switch (Type A) and the CMV103C Long Arm/CMV104D Short Arm (Type B). See images below for reference.
5.2.1 Limit Switch Assembly
To assemble the CMV103C/104D Limit Switch, use the BoM and follow the steps below:
Step 1. Insert 2x 12mm M3 Cap Head Bolts (3) into the two holes of the CMV103C Limit Switch (1)
Step 2. Referring to figure 4, line up the appropriate threaded holes of the Limit Switch Plate V2 (2) with the 12mm M3 Cap Head Bolts (3) so that the limit switch lever hangs off the front of the plate.
Step 3. Finally, screw in the 12mm M3 Cap Head Bolts (3) into the threaded holes of the Limit Switch Plate V2 (2).
It is possible to invert the limit switch for right-side sensing.
To mount the limit switch and plate to your machine:
Step 4. Line up the limit switch arm with a suitable flat surface to trigger the limit switch lever on your machine. This can be a gantry plate, bearing or a V-Wheel.
Step 5. Insert the Spring Loaded Tee Nuts (5) into a V-Slot channel (Figure 6) and then line up the slot of the limit switch plates with the Spring Loaded Tee Nuts (Figure 7). Use an Allen key to fasten the M5-Button Head Screws-8mm (4) into the Tee Nuts through the plate to secure the micro limit switch assembly (Figure 8).
This completes the assembly of the CMV103C/104D limit switch kit.
To assemble the Micro Limit Switch, use the BoM and follow the steps below:
Step 1. Insert the 2x M3-Cap Head Screw-10mm (1) through the Limit Switch Plate (5) so that the screws are lined up (horizontally or vertically). Configuration is dependant on how you plan to mount the limit switch plate.
Step 2. Line up both holes of the Micro Limit Switch (4) with the 2x M3-Cap Head Screw-10mm (1), secure the Micro Limit Switch to the plate.
Note: Some force may be needed if the Micro Limit Switch has not been threaded beforehand.
Note: Do not over tighten!
Step 3. To mount the Plate and Micro Limit switch to a machine or V-slot extrusion, insert the M5-Button Head Screw-8mm (3) through the larger slot in the Limit Switch Plate (5) and the Slot Washer – 15x5x2mm (6), then secure by screwing the Spring Loaded Tee Nut (2) onto the M5-Button Head Screw-8mm loosely. See figure 7 for reference.
Step 4. Line up the red limit switch with a suitable flat surface on your machine, such as a gantry plate, bearing or even a V-Wheel. Insert the Spring Loaded Tee Nut (2) into a V-Slot channel, then use an Allen key to turn the M5-Button Head Screw-8mm (3) clockwise into the tee nut through the plate to secure the micro limit switch assembly.
Limit switch kits can be placed in any location you can secure it. For our machines we suggest limits and homing to be located on the Front of the Y – axis, Left of the X – axis, and Bottom of the Z – axis.
5.2.2 Limit Switch Mounting
Placement for the CMV103C/104D Limit Switch (left column) and Micro Limit Switch (right column) are shown in the images below. Please see the Micro Limit Switch mounting guides for full mounting, wiring and placement instructions.
X-Axis Mounting
Y-Axis Mounting
Pro Tip: For the Y-Axis, it is recommended to place the limit switch on the Cable Dragchain adjacent gantry plate.
Z-Axis Mounting
6.0 Squaring and Commissioning
For how to square and commission the OutBack CNC Machine follow the same processes as:
WorkBee Square and Commissioning Process.
Please Click HERE to go to the Commissioning Guide.
Once everything is Square, remember to go back over check and tighten all the screws.
Credits
Special thanks to:
- The Open Source Hardware community
- Our fantastic customers, whose feedback constantly helps us improve our parts and the design of this great machine.