Laser Engraving and Cutting (CNC) Modules and Parts

Laser Engraving and Cutting (CNC) Modules and Parts

TTL and Analogue Driver Operation

With a "TTL”  driver a TTL level signal (nominally 5V but normally anything between 2.5v and 5V will work) will switch the laser on or off.
The TTL circuit avoids the soft start function of the driver and allows rapid switching so a pulse width modulated (PWM) signal can be used to control the average power.
The switching is between off and full power, the power variation is from the pulse duration, e.g. a 50% pulse cycle will keep the laser on for 50% of the time so the average power will be 50%.
TTL drivers accept very rapid switching (thousands of times per second), if the switching rate is greater than ~150Hz (times per second) the beam appears continuous to the eye but lower intensity (depending on the pulse width).

With an “analogue" driver the switching is the same except the laser output also depends on the voltage of the signal.
If a 5V signal is used the driver will act like a “TTL” module switching between 0 and 100% power with the pulse signal.
If the signal is less than 5V, e.g. 2.5V the laser will switch between off and 50% output.
Analogue drivers allow the true power to be varied by voltage and the the average power by pulse width.

Laser Power

We quote the optical power of our modules.

Some suppliers quote laser power as the input power getting say, 15W from  from a driver current of ~3.33A x diode voltage of 4.5V = 15W.
This is the same rating as you may see on a light bulb.
The optical output power of the laser is lower because the laser diodes are only about 40% efficient at converting input power to laser light, so for a 15W input the output is about 5-6W optical power.

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500mW 405nm (Bluray) Focusing Laser Module 12V with Separate TTL (PWM) Driver

Product no.: OFL510-V2

500mW 405nm laser with optional TTL/PWM control (laser engraving).

£44.99 *
In stock
Delivery weight: 0.1 kg

500mW 405nm Violet Focusing Laser Module (12V) with Integrated TTL (PWM) Driver

Product no.: OFL510-V3

This 12v module has a driver attached to the laser head. Coated glass optics.

£46.99 *
Old price £49.99
In stock
Delivery weight: 0.2 kg

2W 450nm Blue Switchable TTL/Analogue Laser Module, Adjustable Focus 12V (CNC Engraving)

Product no.: OFL419-2-TTL-ANA

This 12v module has a driver that can be switched to select TTL or Analogue mode. Coated glass optics.

£69.99 *
Old price £129.99
In stock
Delivery weight: 0.2 kg

4W 450nm Blue TTL/Analogue Laser Module, Adjustable Focus 12V (CNC Engraving)

Product no.: OFL419-4-TTL-ANA

£99.99 *
Old price £149.99
In stock
Delivery weight: 0.2 kg

Power Cable JST-XH Driver Board to 5.5 x 2.1mm Socket 400mm

Product no.: OFL226-2

Cable to connect the  JST-XH sockets used on driver boards to a power supply with a 5.5 x 2.1mm plug.

£1.90 *
Delivery weight: 0.02 kg

Power Cable USB to 5.5 x 2.1mm Connector 1000mm

Product no.: OFL226-4

Cable to connect USB power supply to a 5.5 x 2.1mm plug.

£1.50 *
In stock
Delivery weight: 0.02 kg

JST-XH Connector Cable 20cm 22awg Silicone

Product no.: OFL226-5

JST-XH connector cable, tinned wire ending, 22AWG flexible silicone wire ~5A capacity

£0.90 *
In stock
Delivery weight: 0.01 kg

JST-XH Connector Cable 25cm 26awg with Header Socket

Product no.: OFL226-7

JST-XH connector cable, tinned wire ending, 26AWG  ~2A capacity

£0.60 *
In stock
Delivery weight: 0.01 kg

TTL and Power Connector Interface for Laser Modules

Product no.: OFL122-X

This board can be used to interchange connections with lasers that have two 2-wire connections (separate TTL and power) and controllers with one 3-wire connection or controllers with two 2-wire connections (separate TTL and power) and lasers with one 3-wire connection.

£5.99 *
In stock
Delivery weight: 0.1 kg

500mW 405nm Violet Focusing Laser Module (12V) with Integrated TTL (PWM) Driver

Product no.: OFL510-V4

This 12v module has a driver attached to the laser head. Coated glass optics.

£44.99 *
Old price £49.99
In stock
Delivery weight: 0.2 kg

5W 450nm Blue Focusing Laser Module (12V) with Integrated TTL (PWM) Driver V4

Product no.: OFL365-5-TTL4

This 12v module has an integrated driver with TTL (PWM) Modulation to allow switching at up to 20kHz. Coated glass optics. True 5W continuous output.

£89.99 *
Old price £169.99
In stock
Delivery weight: 0.25 kg
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