Skip to content Lightblade Learning Lab with Russ Sadler
The Lightblade Learning Lab was commissioned by Thinklaser as a structured practical training series built around the Lightblade CO₂ laser platform. Russ Sadler uses the Lightblade 4060 as the working machine, but much of the engineering, operating and process knowledge applies more broadly to gantry CO₂ laser systems.
This is Thinklaser-owned training content presented on LaserUser with permission. The rebuilt pages add LaserUser editorial commentary around the original videos and transcripts so that observations, measurements, practical techniques and later corrections are easier to find and understand without altering the historical record.
Why This Series Still Matters
The series predates Russ’s later, more formal Learning Lab work, but it already contains many of the principles that became central to his later investigations: establish the machine mechanically, understand the optical path, measure rather than guess, separate software settings from physical process limits, and validate results on the actual material.
It is therefore useful both as Lightblade operator training and as a wider CO₂ laser reference for owners trying to improve alignment, optics, focusing, cutting parameters, air assist, engraving quality, maintenance and machine reliability.
The Lightblade as the Test Platform
The machine is not incidental to the series. The Lightblade gives Russ a stable platform on which to demonstrate commissioning, optics, motion, autofocus, material processing and maintenance in a repeatable way. Where a result depends on a specific Lightblade feature or configuration, the episode commentary will identify that rather than presenting it as universal behaviour.
For readers considering a commercial CO₂ system, the value is in seeing the machine used and examined over many hours rather than reading a specification sheet. Current Lightblade configurations may differ from the machine shown in these historical videos, so current system enquiries should be based on the present Thinklaser Lightblade range.
The Series
Phase 1 — Machine orientation, RDWorks and basic control
01. Introduction (38:39)
02. Datums, Zeros and Origins (16:26)
03. RDWorks Basic Tools (28:04)
04. RDWorks Advanced Tools (28:27)
05. Our First Program (46:31)
Phase 2 — Tube, focus, optics and beam alignment
06. Know Your Laser Tube and Hazards (17:11)
07. Understanding Your Autofocus (18:45)
08. Setting the Processing Order (39:38)
09. Beam Alignment Health Checker (19:25)
10. Understand and Care for Your Lenses (51:11)
11. Understand and Care for Your Mirrors (35:11)
12. Beam Setting — Dream or Nightmare (42:34)
13. The Anatomy of Your Laser Beam (21:44)
14. Material Hazards (11:14)
Phase 3 — Design workflow, lenses and cutting parameters
15. Cardboard Engineering — Part 1 (30:16)
16. Cardboard Engineering — Part 2 (22:46)
17. Creating a Vector File from a Bitmap (17:55)
18. Different Lenses, Different Energy Densities, Different Uses (25:49)
19. Cutting Parameters — Fact or Fiction (40:21)
20. Cutting Parameters — Derive Your Own (1:01:05)
21. Air Assist or Not? (29:00)
22. Air Assist — The Ultimate Answer (14:19)
Phase 4 — Connectivity, service and laser power
23. Wi-Fi Enabling the Lightblade (22:01)
24. How to Change Your Laser Tube (43:05)
25. Measuring Laser Tube Power (34:09)
26. Making a Keyboard Protector (6:33)
Phase 5 — Photo engraving, extraction and difficult processes
27. Understand How to Engrave Pictures — Part 1 (44:03)
28. Understand How to Engrave Pictures — Part 2 (50:35)
29. Cutting Parts Bigger Than Your Bed Size (15:18)
30. Winterising Your Laser Machine (15:32)
31. Make Your Own Pre-Filter for MDF Fumes (17:31)
31A. Fume Pre-Filter Design Mk2 (12:58)
32. The Russ Formula for Successful Photo Engraving (43:44)
33. Dot Mode for Difficult Tasks (34:06)
Phase 6 — Materials, rotary work and laser-material interaction
34. Can I — or Should I — Cut Corian? (24:53)
35. Thermal Marking Stainless Steel (25:11)
36. Let’s Make a Rotary Engraving Fixture (39:52)
37. Let’s Test Our DIY Rotary Engraver (29:23)
38. The Destructive Power of Light (25:43)
39. Photo Engraving Anodised Aluminium — Part 1 (31:03)
40. Photo Engraving Anodised Aluminium — Part 2 (52:09)
41. Photo Engraving Slate and Granite (25:13)
Phase 7 — Setup, maintenance and production techniques
42. Setting the Autofocus Pen (24:38)
43. Design and Manufacture of Rubber Stamps (21:56)
44. Machine Maintenance (27:38)
45. Photo Engraving Acrylic with a Compound Lens (48:13)
46. Acrylic Cutting and Engraving (55:08)
47. Understanding Backlash and Scanning Reverse Interval (29:45)
48. Job Positioning and Virtual Arrays (33:34)
49. Cutting and Engraving Leather and Hide (57:47)
50. Making a Wooden Jigsaw Puzzle (28:52)
How to Read the Rebuilt Pages
The original Thinklaser videos and transcripts remain the primary historical source. LaserUser commentary is added to identify what was measured, observed, calculated or inferred, and to flag explanations that were provisional, machine-specific or superseded by later experiments. This preserves Russ’s learning process while making the material more useful for modern search and technical reference.
Safety and Scope
The videos include work around high-voltage CO₂ laser systems, moving machinery, optical alignment, extraction and material processing. Historical demonstrations should not override current machine documentation, guarding, interlocks, electrical practice, extraction requirements or material-safety guidance.
Related LaserUser Series
For deeper CO₂ engineering and process investigation, continue with the Concise RDWorks Learning Lab, K40 Xtreeem engineering series, Tangerine Tiger RF vs DC CO₂ experiments, or the Fibre Laser Learning Lab.
