Jarno
Established Member
Nice jig, I also like your knobs you posted earlier, pretty nifty use of ply.
Also an engineer here, so I also wonder about the use of readouts which are to 1/100 of a millimeter. Accuracy is not the same as the number of digits in the readout, as you are saying, total achievable accuracy with a jig is also dependent on the material properties, the accuracy of the router, play in the jig or elsewhere etc.
On the other hand, it IS common practice in engineering, when developing a capable tool/process to make sure that the measurement is at least 10 times the accuracy needed, so with that in mind, having a digital ruler with ample readout accuracy does make sense.
Also an engineer here, so I also wonder about the use of readouts which are to 1/100 of a millimeter. Accuracy is not the same as the number of digits in the readout, as you are saying, total achievable accuracy with a jig is also dependent on the material properties, the accuracy of the router, play in the jig or elsewhere etc.
On the other hand, it IS common practice in engineering, when developing a capable tool/process to make sure that the measurement is at least 10 times the accuracy needed, so with that in mind, having a digital ruler with ample readout accuracy does make sense.