DIY Laser levelling using webcam and laser level

[devmonkey]

Thanks Andy.

I guess if the lens was canted slightly so the beam was not hitting the cylindrical face at the lens normal you would get a bowed line, but this should be easy to spot and also probably not hugely important for aligning two rails in a plane if you positioned the laser inline with the mid point of the rails.

I will start building a proper mount for the sensor and share the software incase anyone else wants to experiment.