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#about

What is it?

The Mr Beam Shield was developed within the 
Kickstarter project "Mr Beam - a Portable Laser 
Cutter and Engraver Kit" (see http://kck.st/1j4BQiz).
Beeing compatible to the grbl firmware (http://
bengler.no/grbl), it combines a laser diode driver with 
up to 3 stepper motor drivers on an Arduino Uno 
shield. We recommend the usage of our Mr Beam 
grbl fork which is already configured to the shields 
features. You can find it at https://github.com/
mrbeam .

What can I build with it?

Originally the shield was designed for the Mr Beam 
laser cutter kit, but it can be used for every laser 
device which uses stepper motors in the mechanics.
Besides laser cutters this can be laser sintering 3D 
printers, 3D scanners, laser projectors or other 
robots. 

Thank you & Have fun! 

By purchasing this shield you have supported a piece 
of open hardware - thank you! 
We enjoyed the development of it and will continue 
improving it. We hope you find our work useful and it 
will help you to be creative. Whatever you do, take 
care about yourself and others. We would love to see 
your work in the social networks. Tag it with 
#mrbeam to catch our attention. 
Have fun!
Send any feedback to [email protected] . 

Содержание Shield

Страница 1: ...back front Mr Beam Shield Instructions 01 laser driver 02 power source 03 axes motors 04 miscellaneous 05 safety 06 usage appendix ...

Страница 2: ...inally the shield was designed for the Mr Beam laser cutter kit but it can be used for every laser device which uses stepper motors in the mechanics Besides laser cutters this can be laser sintering 3D printers 3D scanners laser projectors or other robots Thank you Have fun By purchasing this shield you have supported a piece of open hardware thank you We enjoyed the development of it and will con...

Страница 3: ...your laser diode Before connecting the laser diode check twice the polarity of your diode the cable and the connectors in between A false polarity will destroy your diode Interlock connectors The shield provides 2 connectors for interlock switches or sensors Both have to be closed for operating the laser Cooling Fan Connect a cooling fan at this two pins The voltage supplied at the pin equals the ...

Страница 4: ...r for each control button supported by the GRBL firmware Just plug in the button s cables that s it Arduino Power This little feature powers the Arduino under the shield with the supply voltage from the power supply connected to the shield A voltage converter provides 5V output to the Arduino with a maximum of 1 5A It is even enough to power an attached Raspberry via USB as well To enable this fea...

Страница 5: ...he Y axis on a Mr Beam Senior The connectors are using the reprap style pin order 1b 1a 2a 2b Turning the connector 180 inverts the motor direction Check the orientation of a stepper driver before plugging it in The enable pin of the driver is marked on the shield as well The 3 jumpers marked with MS1 MS2 MS3 configure the micro stepping mode of the driver Depending on the driver s chipset the mod...

Страница 6: ...The RX TX pins have 3 3v logic levels but it is no problem to use them with 5v as well if the counterpart is flexible as well Additionally there are both voltage levels and ground available as well Sensor Input Though the analog Arduino pins A4 and A5 are not used in standard GRBL firmware the shield is ready for future developments and provides own connectors for them In combination with a 5v and...

Страница 7: ...ls on it according to your local regulations Some examples of such labels are shown on the right Check your local regulations for chosing the right ones LASER RADIATION LASER RADIATION AVOID EYE OR SKIN EXPOSURE TO DIRECT OR SCATTERED RADIATION CLASS 4 LASER PRODUCT Max Power 1000mW Wavelength 400 695nm Classified according IEC 60825 1 2007 LASER APERTURE Safety Glasses Laser light is very intense...

Страница 8: ...re it will be switched on M05 switch laser off Fan Control M08 switch cooling fan on M09 switch cooling fan off Movement H do a homing cycle G21 switch to mm units G90 switch to absolute coordinates G92 X0 Y0 Z0 set coordinate origin G0 X Y rapid positioning move G1 X Y move to given position with the current feedrate F set feedrate Additional Information Resources The internet is full of informat...

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