Laser Rotary Chuck Attachment

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Laser Rotary Chuck Attachment
Laser rotary chuck.jpg
Name Rotary Wheel Attachment
Zone Laser Cutter
Owner i3Detroit
Make Model
Part Number
Date Acquired
Storage Location
Authorization Required Yes
Status Running
Value
Documentation
Other References

Intro

This tool can be used with the laser cutter to etch on round objects that fit in a chuck, such as wooden dowels.

The tool is stored in the black and yellow storage bin on the lower shelf of the red pallet rack next to the laser desk.

Rules

Make sure the laser head has clearance over the whole chuck, especially if you are engraving near the chuck. If it does not have clearance, do not engrave near the chuck! The laser head will move past the bounding box edge to decelerate while it is engraving. Failure to follow this will result in the laser head crashing into the rotary tool.

Instructions

These instructions assume you understand how to operate Bumblebee.

  • Important (Also probably outdated, this is only specific to Bumblebee and may result in poor results... more testing is needed) 72 mm in the Y-axis corresponds to 360° of rotation. No matter the diameter of your work piece, a 72 mm line will make one full circumference. This takes some time to get used to, and your design will likely need to be stretched or squished to look right. Ask the zone coordinator if you need help converting your design.
  • Alternately for a one turn graphic, the graphic should have the same length as the work piece has as its circumference in the area you are enraging. then set the pulse unit to 1/2 the circumference. It is a complex process and it is a good idea to make a test piece with the same circumference as your project piece.
  • Another solution accidentally stumbled on 12/22/2016 by Mike Fink: Set Machine Options > Worktable > Y-Axis > Pulse Unit to be 1/10000 your design's total y-dimension. For example, if engraving a 223.523 mm (x) by 374.251 mm (y) rectangle, leave X-axis pulse unit alone (bumblebee or wolverine specific value) but set Y-axis pulse unit to 0.0374251. This seems to scale the scan gap correctly with your art.

Alignment

  1. Make sure the red dot is lined up with where the laser fires. Do this by focusing the laser on a piece of scrap, test fire the laser, and adjust the direction of the red dot with a hex wrench.
  2. Lower the bed approx 6-8 inches.
  3. Place the rotary chuck tool on the bed, making sure the cord comes out the left side. Align its front edge with a line in the honeycomb. (Optionally, you can also use carpenters' squares to line it up square with the laser chases, or the X axis alignment jig see below)
  4. Use the directional pad to move the laser head over the tape mark indicating the middle of the rotary axis.
  5. Focus the laser head over the tape line.
  6. Adjust the position so the red dot is lined up with the edge of the tape. The laser is now aligned over the rotary tool.

Setup & Cutting

  1. Start Lasercut with the shortcut labeled "Bumblebee"
  2. Plug the rotary tool into the switch box and flip the switch toward the rotary tool plug.
  3. Press +Y on the directional pad until the tool stops spinning.
  4. Make sure the correct chuck set is properly inserted, and clamp your work piece in the chuck.
  5. Move the laser head to the desired horizontal position on your work piece.
  6. Load your file in Lasercut and set the origin to the top edge.
  7. Upload your file to the laser.
  8. Test the bounding box.
  9. Cut/Engrave your piece.

Cleanup

  1. Unplug the rotary tool from the switch box.
  2. Turn the switch box back to normal Y-axis mode.
  3. Put the rotary tool away in the storage bin.

X axis alignment jig

  1. This tool was made by Greg Smith so if you need help contact him
  2. Install the pointed center tool in the chuck, this will determine the center of the chuck end.
  3. Mount the alignment tool between centers and use the squaring leg to rotate it to the vertical position, this aligns the centering line with the chuck attachment tool.
  4. make sure the laser's tip is approximately at the focal distance, then by manipulating the X axis you can see if the red dot aligns with the line in the alignment jig,
  5. Adjust the Chuck attachment too as required.

Maintenance Info

FAQ

ToDo

Authorized Users and Trainers

Trainer Name Certified Date
Mike Fink 2015/10/02
User Name Authorized By Date of Most Recent Training