Boss Team Tech Support: Knowledge Base & Applications Hub

Series Support

LS Series Support

Support resources for LS Series CO2 laser cutters and engravers — covering the LS-1416/1420, LS-1630, LS-2440, and LS-3655.

Replacement parts

Series manuals & guides

Owner’s ManualLS Series · PDFDownload Quick Start GuideLS Series · PDFDownload

One owner’s manual and quick-start guide cover every LS model — no need to pick your exact machine to download them.

LS quick fixes

Try these first.

Each quick fix includes a short explanation, a first action, and a guide when available.

Try this first

Laser Not Firing

Usually related to interlocks, power supply, or laser tube. Start with safety checks before assuming a failed component.

Confirm lid, door, and water-protection interlocks.
Run the interlock test and simplified resistor test.
Document lights, sounds, and test results for support.

Firing Guide

Try this first

Alignment Issues

Beam-alignment problems show up as weak cutting, uneven power across the bed, or visible path drift.

Check mirror alignment from mirror one through the nozzle.
Use the alignment tool when available.
Verify focus after the beam path is corrected.

Alignment Guide

Try this first

Poor Engrave / Cut Quality

Quality issues are commonly tied to focus, lens condition, air assist, bed level, speed, power, or material condition.

Clean the focal lens and mirrors.
Confirm focus height and bed level.
Test speed, power, frequency, and air-assist settings.

Quality Guide

Guides & downloads

Support resources for the LS Series.

Step-by-step guide pages you can work at the machine, each with photos.

Guide page

Interlock testing: laser not firing

Trace a no-fire condition through power supply, bypass, door sensor, chiller, and water flow.

Open guide →

Guide page

Simplified resistor test

Use the green test resistor to tell a power-supply problem from a laser-tube problem.

Open guide →

Guide page

Mirror & beam alignment

Align mirror one through the nozzle, one mirror at a time, then confirm focus.

Open guide →

LS model support

Choose your model.

The model page adds owner-facing videos, quick tests, and model-specific downloads for that exact machine.

LS-1416/1420

Compact LS Series support for setup, firing issues, alignment, autofocus checks, bed leveling, lens cleaning, and limit-switch testing.

LS-1416/1420 Support Owner’s Manual Quick Start

LS-1630

Mid-size LS support for installation checks, routine operation, alignment, and common CO2 troubleshooting workflows.

LS-1630 Support Owner’s Manual Quick Start

LS-2440

Large-format LS support for setup, pass-through workflows, controller references, alignment, focus, and cut-quality checks.

LS-2440 Support Owner’s Manual Quick Start

LS-3655

High-capacity LS support for larger-bed setup, maintenance, motion checks, alignment, focus, and cutting consistency.

LS-3655 Support Owner’s Manual Quick Start

Common questions

LS Series FAQs.

Frequent LS Series questions covering manuals, alignment, and cut quality.

Which manual applies to my LS model?

One LS Series owner’s manual and quick-start guide cover every LS model. Download them from the top of this page; model pages add machine-specific tests and videos.

How do I align the mirrors on an LS laser?

Run the beam-path checks from mirror one through the nozzle, adjusting one mirror at a time and re-testing after each adjustment. Verify focus only after the beam path is correct.

Why are my cuts dirty or inconsistent?

Review focus, optics condition, air assist, material settings, and bed level — change one variable at a time and re-test so you know which change fixed it.

Still need help?

Contact Boss Laser technical support.

Include your LS model, serial number, photos or video, the material being used, settings, and which quick checks you completed.

Contact Support

Replacement parts

Replacement parts for the LS Series.

Fitment

129 parts map to the LS Series. 59 of them fit all 4 models — order any of those without knowing your exact machine. 37 can be bought right now; the rest are catalogued with correct fitment but not yet listed on the store.

The remaining 70 are model-specific — they scale with bed size or wattage. That is why this page hands off to a model page, and what the table below makes concrete.

Most commonly replaced

Interlock Switch

SKU 600029

Select$15.00Add to cart

Water Chiller (110v)

SKU 400018

Select$747.00Add to cart

Control Card (RDC6442S-B(EC) Obsolete)

SKU 800013

Select$409.00Add to cart

Air Pump

SKU 400012

Select$59.00Add to cart

Control Panel (Touch 6445GT)

SKU 800050

Select$289.00Add to cart

Air Compressor

SKU 400050

Select$227.00Add to cart

Focal Lens (CO2 Standard)

3 options

2" (20mm dia) Focal LengthSKU 300002$44.10Add to cart
2.5" (20mm dia) Focal LengthSKU 300003$44.10Add to cart
4" (20mm dia) Focal LengthSKU 300006$44.10Add to cart

Control Card (6445GT Current)

SKU 800051

Select$429.00Add to cart

Air Assist 1

Regulator

SKU 700037

Select$15.00Add to cart

Belts 3

Drive Belt (X-Axis)

SKU 500075

Part category	LS-1420 Technical Support	LS-1630 Technical Support	LS-2440 Technical Support	LS-3655 Technical Support
Air Assist1 model-specific	1 partfrom $59.00	1 partfrom $59.00	—	—
Belts5 model-specific	2 partscall to order	1 partcall to order	1 partcall to order	1 partcall to order
Cooling & Exhaust5 model-specific	2 partsfrom $25.00	2 partsfrom $25.00	2 partsfrom $25.00	2 partsfrom $25.00
Drag Chain3 model-specific	2 partscall to order	2 partscall to order	1 partcall to order	2 partscall to order
Hardware & Fittings18 model-specific	6 partscall to order	9 partscall to order	6 partscall to order	5 partscall to order
Linear Rails & Bearings10 model-specific	3 partscall to order	3 partscall to order	3 partscall to order	3 partscall to order
Motors & Drivers8 model-specific	4 partscall to order	4 partscall to order	4 partscall to order	4 partscall to order
Pulleys3 model-specific	3 partscall to order	—	—	—
Tubes & Power Supplies9 model-specific	2 partsfrom $197.00	7 partsfrom $5.00	7 partsfrom $5.00	7 partsfrom $5.00
Work Table8 model-specific	2 partsfrom $9.00	2 partsfrom $10.00	2 partsfrom $16.00	2 partsfrom $18.00

LS Series Support

Try these first.

Laser Not Firing

Alignment Issues

Poor Engrave / Cut Quality

Support resources for the LS Series.

Interlock testing: laser not firing

Simplified resistor test

Mirror & beam alignment

Choose your model.

LS-1416/1420

LS-1630

LS-2440

LS-3655

LS Series FAQs.

Contact Boss Laser technical support.

Replacement parts for the LS Series.

Most commonly replaced

Interlock Switch

Water Chiller (110v)

Control Card (RDC6442S-B(EC) Obsolete)

Air Pump

Control Panel (Touch 6445GT)

Air Compressor

Focal Lens (CO2 Standard)

Control Card (6445GT Current)

Air Assist 1

Regulator

Belts 3

Drive Belt (X-Axis)

Motor Belt (X-Axis)

Motor Belt (Y-Axis)

Control Panels & Cards 1

Cooling & Exhaust 2

Water Chiller (220v)

Water Pump

Drag Chain 7

Drag Chain End Link (500063)

Drag Chain End Link (500064)

Drag Chain Link

Drag Chain End Link (500065)

Drag Chain End Link (500066)

Drag Chain End Link (500067)

Drag Chain End Link (500068)

Hardware & Fittings 2

Door Latch

Key

Hood, Door & Chassis 1

Hinge

Lenses & Optics 15

Focal Lens (ZnSe PREMIUM)

Lens O-Ring

Nozzle (2″ Gen 5 LS & HP Non-Metal)

Nozzle (2.5″ GenV LS&HP Non-Metal)

Nozzle (4″ GenV LS&HP Non-Metal)

Lens Housing

Mirror (1″ / 25.4 mm Mirror Premium)

Alignment Tool

Alignment Tool (Kit Target Refills (10 Pack))

Mirror (Mirror Removal Tool)

Nozzle (Removal Tool)

Mirror

Beam Combiner

Red Dot Laser Pointer

Removal Tool

Motors & Drivers 2

XY-Axis Motor

Driver

Pulleys 2

LS1416H

LS1420H

Sensors & Switches 8

Proximity Sensor ((black GenV))

Proximity Sensor ((orange or green))

Flow Sensor

Switch

Key (Ignition Keys)

E-Stop

Magnet

Gauge