Toggle menu
Toggle personal menu
Not logged in
Your IP address will be publicly visible if you make any edits.

Instructions:ShopBot 3-Axis CNC Mill: Difference between revisions

From North Forge
m Text replacement - "hearing protection" to "hearing protection"
Added cyclone instructions, tidied up language, clarified PPE requirements, added detail to spoilboard policy, added a few missing periods.
Line 26: Line 26:


*Respiratory Protection (N95 dust mask or respirator) to protect against airborne dust when cleaning or running the equipment.
*Respiratory Protection (N95 dust mask or respirator) to protect against airborne dust when cleaning or running the equipment.
Do Not Wear:
* Loose hair
* Loose clothing (especially hoodie strings)
* Wired earbuds or earplugs
* Jewelery


=== '''Hazards''' ===
=== '''Hazards''' ===
Line 66: Line 72:
Rapidly moving automatic equipment
Rapidly moving automatic equipment
|No loose hair, clothing, earbuds, hoodie strings, etc
|No loose hair, clothing, earbuds, hoodie strings, etc




Line 99: Line 106:


* Improper feeds and speeds
* Improper feeds and speeds
* Improper tooling
* Improper tooling (especially low-quality tooling)
* Improper fixturing
* Improper materials (particularly recycled materials with embedded nails or stones)
* Improper fixturing (workpiece comes loose)
* Improper programming/setup (offset mistakenly applied, not setting zeroes consistent with the programming, not avoiding fixtures)
* Improper programming/setup (offset mistakenly applied, not setting zeroes consistent with the programming, not avoiding fixtures)


=== Housekeeping ===
=== Housekeeping ===
Empty the dust collector when the dust has piled halfway up the viewing window.
Empty the cyclone dust collector after every use. To empty the cyclone dust collector:
 
# Unlock the clasp.
# Remove the lid.
# If the dust collector is less than halfway full, scoop or dump the contents of the bag into an existing can. If it is more than halfway full, remove the bag and discard it the garbage can.


Break down large pieces before putting them garbage bins. Blunt sharp corners to avoid puncturing the bag and injuring the person carrying it.
Empty the main dust collector when the dust has piled halfway up the viewing window. Check before and after use and empty if required. Overfilled dust collectors can start a fire.


After use, clean the equipment and surrounding area:
Break down large pieces before putting them garbage bins. Round off sharp corners to avoid puncturing the bag and injuring the person carrying it.


# While wearing respiratory protection, use compressed air to clean the gantry. Focus on areas where parts interact: rack and pinion, spindle mount, motor mounts, etc.
After use, clean the equipment and surrounding area. Continue wearing your hearing and respiratory protection while you are cleaning up.
 
# Use a dustpan, vacuum, and broom to remove most of the dust from the table, and gantry.
# Use compressed air to clean the gantry. Focus on areas where parts interact: rack and pinion, spindle mount, motor mounts, etc.
# Clean the floor using a broom and dustpan, shop vacuum, or the dust collector hose. Replace the dust collector hose when done.
# Clean the floor using a broom and dustpan, shop vacuum, or the dust collector hose. Replace the dust collector hose when done.
# Empty any garbage bins that are more than 75% full and replace the bag.
# Empty any garbage bins that are more than 75% full and replace the bag.
Line 118: Line 133:
#* Collets in the drawer
#* Collets in the drawer
#* Collet wrench placed beside locking fixture
#* Collet wrench placed beside locking fixture
#* Calipers, drills/impact drivers, squares, hand tools in the tool room  
#* Calipers, drills/impact drivers, squares, hand tools in the tool room
# Remove any personal tools, materials, and removable media from the room. The workbench should only have the wrench and locking fixture on it when done. Due to local fire code, do not store stock materials in the CNC room (fixtures are OK - label with name and phone number)
# Remove any personal tools, materials, and removable media from the room. The workbench should only have the wrench and locking fixture on it when done. Due to local fire code, do not store stock materials in the CNC room (fixtures are stored in the fixture cart - label with name and phone number)
# Turn off the equipment per shutdown procedures.
# Turn off the equipment per shutdown procedures.
# Turn off the dust collector. If you are the last one in the room, turn off the room exhaust. The room exhaust is interlocked to the electrical system; turning off the room exhaust will turn off all equipment in the room.
# Turn off the dust collector. If you are the last one in the room, turn off the room exhaust. The room exhaust is interlocked to the electrical system; turning off the room exhaust will turn off all equipment in the room.
Line 130: Line 145:
Always measure stock thickness with calipers, never with tape measures or nominal dimensions.
Always measure stock thickness with calipers, never with tape measures or nominal dimensions.


If your cut penetrates deeper than 0.06” into the spoilboard, please stop and investigate. If the stock is set up correctly and the depth of cut is appropriate, the collet may be dirty or damaged and the tool slipping out, or the secondary spoilboard may not be perfectly parallel to the gantry (for example due to debris between the primary and secondary spoilboard).
If your cut penetrates deeper than 0.06” into the spoilboard, please stop and investigate. If the stock is set up correctly and the depth of cut is appropriate, the collet may be dirty or damaged and the tool slipping out, or the secondary spoilboard may not be perfectly parallel to the gantry (for example due to debris between the primary and secondary spoilboard, or issues with the underlying phenolic plenum).


Tips:
Tips:
* Zero to the spoilboard, not the top of the stock
* Use a secondary spoilboard wherever possible.
* Use conservative cut depths and nudge down as needed (for example, by using Z nudge function or manually tweaking z zero)
* Zero to the spoilboard, not the top of the stock.
* Test toolpaths on a secondary spoilboard  
* Use conservative cut depths and nudge down as needed (for example, by using Z nudge function or manually tweaking z zero).
* Measure stock with calipers  
* Test toolpaths on a secondary spoilboard.
* Measure stock with calipers.
==== '''SCREWS''' ====
==== '''SCREWS''' ====
When using North Forge’s ''secondary'' spoilboard, it is okay to screw the workpiece in place. Do not screw into the main vacuum spoilboard. Do not use excessively long screws (ie long enough to pierce both the secondary spoilboard and the vacuum spoilboard).
When using North Forge’s ''secondary'' spoilboard, it is okay to screw the workpiece in place. Do not:
 
* Screw into the main vacuum spoilboard
* Use nails to secure your stock to the vacuum spoilboard
* Use excessively long screws (ie long enough to pierce both the secondary spoilboard and the vacuum spoilboard).
* Use glue on the screw spoilboard.


==== '''SPRAY ADHESIVE METHOD''' ====
==== '''SPRAY ADHESIVE METHOD''' ====
It is also possible to use spray adhesive to secure the entire workpiece to the secondary spoilboard.
It is also possible to use spray adhesive to secure the entire workpiece to the secondary spoilboard.


# Use sandpaper to knock down any high spots on the glue spoilboard (if required).
# Cover both the bottom of the workpiece and the appropriate part of the spoilboard with masking tape or painter’s tape.
# Cover both the bottom of the workpiece and the appropriate part of the spoilboard with masking tape or painter’s tape.
# Spray both surfaces with spray adhesive.
# Spray both surfaces with spray adhesive (available at most hardware stores).
# Press the two surfaces firmly together and hold for 30 seconds.
# Press the two surfaces firmly together and hold for 30 seconds.
# Test the hold by trying to move the workpiece sideways.
# Test the hold by trying to move the workpiece sideways.
Line 167: Line 189:
*Programmed feeds and speeds are appropriate for the tool, material, and cut type
*Programmed feeds and speeds are appropriate for the tool, material, and cut type
*File is programmed to avoid colliding with fixtures and equipment
*File is programmed to avoid colliding with fixtures and equipment
*Files have been exported to sbp (inch) format.
*Files have been copied from portable media to the working computer
*Files have been copied from portable media to the working computer


Line 174: Line 197:


===Tool===
===Tool===
*Collet and tool holder have been cleaned; tool is secure
*Collet and tool holder have been cleaned; tool is secure.
*Tool stickout is long enough to complete the cut (tool holder will not collide with the top of the workpiece)
*Tool stickout is long enough to complete the cut (tool holder will not collide with the top of the workpiece).
*Tooling is sharp
*Tooling is sharp.
*Tooling is appropriate for the task (not using downcut or compression end mills for drilling holes, not using standard low-RPM twist drills for drilling, etc)
*Tooling is appropriate for the task (not using downcut or compression end mills for drilling holes, not using standard low-RPM twist drills for drilling, etc).


===Workholding===
===Workholding===
*Workpiece is secured to the table
*Workpiece is secured to the table.
*Hold has been tested by manually trying to move the workpiece.
*Hold has been tested by manually trying to move the workpiece if using vacuum system.
*Screws are long enough to secure the material (4-5 teeth protrude into secondary spoilboard)
*Screws are long enough to secure the material (4-5 teeth protrude into secondary spoilboard).
*Workpiece is secured in accordance with NF policies (no screws or glue on vacuum spoilboard)
*Workpiece is secured in accordance with NF policies (no screws, glue, or nails on vacuum spoilboard).


===Final checks===
===Final checks===
Line 199: Line 222:


== Operations ==
== Operations ==
Instructions and proper formatting will follow.
=== Room Layout ===
=== Room Layout ===
Pay attention to the axis system when programming. Maybe some text will fix the formatting.
Pay attention to the axis system when programming and laying out your stock.
[[File:RoomLayout.jpg|alt=Layout of CNC room with axis system|thumb|left|Room Layout]]
[[File:RoomLayout.jpg|alt=Layout of CNC room with axis system|thumb|left|Room Layout]]
<div style="clear: both"></div>
<div style="clear: both"></div>
Line 211: Line 232:
<div style="clear: both"></div>
<div style="clear: both"></div>
=== Setup ===
=== Setup ===
Put on eye protection before starting the ShopBot.
1. Turn on the room exhaust.
1. Turn on the room exhaust.


Line 216: Line 239:
<div style="clear: both"></div>
<div style="clear: both"></div>


2. Turn on the computer.
2.  Check the dust collector and empty if required
 
 
3. Turn on the computer.


[[File:Nf2computeron.jpg|thumb|200x200px|left|Computer on]]
[[File:Nf2computeron.jpg|thumb|200x200px|left|Computer on]]
<div style="clear: both"></div>
<div style="clear: both"></div>


3. Turn on the air.
4. Turn on the air.


[[File:Nf3airon.jpg|thumb|200x200px|left|Air on]]
[[File:Nf3airon.jpg|thumb|200x200px|left|Air on]]
<div style="clear: both"></div>
<div style="clear: both"></div>


4. Reset the E-STOP.
5. Reset the E-STOP.


[[File:Nf4estop.jpg|thumb|200x200px|left|Reset E-Stop]]
[[File:Nf4estop.jpg|thumb|200x200px|left|Reset E-Stop]]
<div style="clear: both"></div>
<div style="clear: both"></div>


5. Turn on the ShopBot power (right side of machine).
6. Turn on the ShopBot power (right side of machine).


[[File:Nf5poweron.jpg|200x200px|thumb|left|Turn on the power]]
[[File:Nf5poweron.jpg|200x200px|thumb|left|Turn on the power]]
<div style="clear: both"></div>
<div style="clear: both"></div>


6. Press RESET on the remote.
7. Press RESET on the remote.


[[File:Nf6reset.jpg|thumb|200x200px|left|Press RESET]]
[[File:Nf6reset.jpg|thumb|200x200px|left|Press RESET]]
<div style="clear: both"></div>
<div style="clear: both"></div>


7. Start ShopBot 3 Software
8. Start ShopBot 3 Software


[[File:Nf7shopbotswr.jpg|thumb|200x200px|left|Start ShopBot software]]
[[File:Nf7shopbotswr.jpg|thumb|200x200px|left|Start ShopBot software]]
<div style="clear: both"></div>
<div style="clear: both"></div>


8. Open the Key Pad
9. Open the Key Pad


[[File:Nf8keypad.jpg|thumb|200x200px|left|Open KeyPad]]
[[File:Nf8keypad.jpg|thumb|200x200px|left|Open KeyPad]]
<div style="clear: both"></div>
<div style="clear: both"></div>


9. Use the arrow keys to move the head around
10. Use the arrow keys to move the head around.
*On the keyboard: use the arrow keys for XY movement, Page UP/Page DOWN to move Z axis
*On the keyboard: use the arrow keys for XY movement, or Page UP/Page DOWN to move Z axis.
*On screen: use the arrow buttons to manually move the head, or type the destination location and use GOTO
*On screen: use the arrow buttons to manually move the spindle, or type the destination coordinates in X,Y,Z and press the GOTO button.


[[File:Nf9arrow.jpg|thumb|200x200px|left|Use arrow keys to move]]
[[File:Nf9arrow.jpg|thumb|200x200px|left|Use arrow keys to move]]
<div style="clear: both"></div>
<div style="clear: both"></div>


10. Load the spoilboard and/or material.
11. Load the spoilboard (if required) and material.


11. Start the vacuum table per vacuum table instructions.
12. Start the vacuum table per vacuum table instructions.




=== Vacuum Table ===
=== Vacuum Table ===
Begin wearing respiratory protection and hearing protection at this point.


1. Clean the table of debris (wear respiratory protection if using compressed air). Debris can affect part accuracy.
1. Clean the table of debris first using a broom, then using compressed air. Debris can affect the accuracy of the final part.


[[File:Nf11cleanload48cleanup.jpg|thumb|200x200px|left|Clean the table]]
[[File:Nf11cleanload48cleanup.jpg|thumb|200x200px|left|Clean the table]]
Line 291: Line 318:


==== Assembly ====
==== Assembly ====
1. Clean components with compressed air.
1. Place the components on a surface and clean with compressed air.
*Debris caught in the tool holder can cause the tool to slip, damaging the tool and equipment.
*Debris caught in the tool holder can cause the tool to slip, damaging the tool and equipment.


Line 334: Line 361:


6. Load the tool into the ShopBot
6. Load the tool into the ShopBot
*Support the holder from the bottom
*Support the holder from the bottom.
*Tool goes into the conical receptor under the skirt
*Tool goes into the conical receptor under the skirt.
*Press the green button briefly until the tool gets sucked in
*Press the green button briefly until the tool gets sucked in.
*If the tool is not sucked in, blow off the beige control box near the pillar with the air line.
*If the tool does not load, use compressed air to blow off the beige control box near the pillar with the air line.


[[File:Nf21loadup.jpg|thumb|200x200px|left|Load the tool]]
[[File:Nf21loadup.jpg|thumb|200x200px|left|Load the tool]]
Line 360: Line 387:
<div style="clear: both"></div>
<div style="clear: both"></div>


4. Replace the collet, nut, and tool holder on the shelf.
4. Replace the collet and nut in the drawer and tool holder on the shelf when done.




Line 373: Line 400:
<div style="clear: both"></div>
<div style="clear: both"></div>


2. Use the arrow keys to move the head to the desired home point.
2. Use the arrow keys to move the head to the desired XY home point.


[[File:Nf9arrow.jpg|thumb|200x200px|left|Use arrow keys to move]]
[[File:Nf9arrow.jpg|thumb|200x200px|left|Use arrow keys to move]]
Line 411: Line 438:


4. Remove and store the fixture.
4. Remove and store the fixture.
*Plate goes in the 3D printed holder
*Plate goes in the 3D printed holder on the right side of the spindle
*Clip attaches to the frame
*Clip attaches to the frame
*Make sure the clip is not touching the plate
*Make sure the clip is not touching the plate
Line 419: Line 446:


=== Spindle RPM Check ===
=== Spindle RPM Check ===
Occasionally, the ShopBot does not read the RPM from the file correctly. Other users may also have adjusted the default RPM away from 18,000. Use this method to manually enter the RPM.
Occasionally, the ShopBot does not read the RPM from the file correctly. Other users may also have adjusted the default RPM away from 18,000. Use this method to manually confirm the RPM.


1. Select Tools, then Spindle RPM Control
1. Select Tools, then Spindle RPM Control
Line 442: Line 469:


=== Running a Job ===
=== Running a Job ===
*If you're not already wearing PPE ([[hearing protection]], safety glasses, respiratory protection) put it on now.
1. Check the dust collector. If the dust is halfway up the viewing window, empty it before use.
1. Check the dust collector. If the dust is halfway up the viewing window, empty it before use.
[[File:Nf32dustcheck.jpg|thumb|200x200px|left|Check dust collector]]
[[File:Nf32dustcheck.jpg|thumb|200x200px|left|Check dust collector]]
Line 453: Line 478:
<div style="clear: both"></div>
<div style="clear: both"></div>


3. Select CUT PART on screen and open the cut file.
3. Select CUT PART on screen. Windows Explorer will open; select the part file and open it.


[[File:Nf34cutpart.jpg|thumb|200x200px|left|Select Cut Part]]
[[File:Nf34cutpart.jpg|thumb|200x200px|left|Select Cut Part]]
Line 475: Line 500:


7. Start the spindle using the START button on the remote.
7. Start the spindle using the START button on the remote.
*Listen to make sure the sound is appropriate
*Listen to make sure the sound is appropriate - no abnormal vibration, chatter, etc


[[File:Nf38spindlestart.jpg|thumb|200x200px|left|Press the spindle start button]]
[[File:Nf38spindlestart.jpg|thumb|200x200px|left|Press the spindle start button]]
Line 520: Line 545:
8. Turn off the air.
8. Turn off the air.
*The head will slowly sink downwards onto the rest block.
*The head will slowly sink downwards onto the rest block.
*Press gently on the head if the tool does not sink.
[[File:Nf47airoff.jpg|thumb|200x200px|left|Turn off the air]]
[[File:Nf47airoff.jpg|thumb|200x200px|left|Turn off the air]]
<div style="clear: both"></div>
<div style="clear: both"></div>


9. Press E-STOP.
9. Press the E-STOP.
[[File:Nf45estop.jpg|thumb|200x200px|left|E-STOP]]
[[File:Nf45estop.jpg|thumb|200x200px|left|E-STOP]]
<div style="clear: both"></div>
<div style="clear: both"></div>


10. Turn off the exhaust if you are the last one in the room.
10.  Empty the cyclone dust collector.
 
 
11. Empty the main dust collector.
 
 
12. Turn off the exhaust if you are the last one in the room.
*If the air is visibly dusty, you may need to leave the exhaust running until it clears.
*If the air is visibly dusty, you may need to leave the exhaust running until it clears.
*Turning off the exhaust will cut power to other equipment in the room!
*Turning off the exhaust will cut power to other equipment in the room! Only turn off the exhaust if you are the last one in the room.
[[File:Nf49exhaustoff.jpg|thumb|200x200px|left|Turn off the room exhaust (if you are the last one in the room)]]
[[File:Nf49exhaustoff.jpg|thumb|200x200px|left|Turn off the room exhaust (if you are the last one in the room)]]
<div style="clear: both"></div>
<div style="clear: both"></div>