C
colin
Hi,
I have a BLDC motor for wich I am considering a single chanel
analogue optical position sensor so it generates a single ramp over
1 whole turn.
Ive made a reflective wheel from some sticky backed paper label,
and a carefully pencil drawn ramp and it works well enough to
prove its feasable.
the next step is to print it out with my inkjet printer,
has anyone done anything like this ?
unless theres already something out there
someone knows of I can probably write some software to generate a
bitmap image with c# if so il post the program or
bitmaps somewhere.
another question is how do I ensure I get the image the exact right size on
the paper
without doing it by trial and error ?
I also assume black would be the best absorber for infra red
but this remains to be seen, or if the some of the other colors are
more reflective than the white paper.
im not even sure if the color needs to be a linear change,
I could use pwm lines thin enough so it doesnt show in the signal.
I have a new epson stylus photo R285.
unfortunatly I intended to get one with waterporrof ink but
they never make it clear if its not waterproof in the sales blurb of the
printer
you have to go and delve into the ink itself.
does anyone know how compatable the two different types are ?
pigment type seem to be the waterproof ones and dye based arnt.
Im not sure a pigment based ink would do anything more than just clog the
jets up permanently wich would be a shame.
a waterproof coating might interfere to much.
many thanks
Colin =^.^=
I have a BLDC motor for wich I am considering a single chanel
analogue optical position sensor so it generates a single ramp over
1 whole turn.
Ive made a reflective wheel from some sticky backed paper label,
and a carefully pencil drawn ramp and it works well enough to
prove its feasable.
the next step is to print it out with my inkjet printer,
has anyone done anything like this ?
unless theres already something out there
someone knows of I can probably write some software to generate a
bitmap image with c# if so il post the program or
bitmaps somewhere.
another question is how do I ensure I get the image the exact right size on
the paper
without doing it by trial and error ?
I also assume black would be the best absorber for infra red
but this remains to be seen, or if the some of the other colors are
more reflective than the white paper.
im not even sure if the color needs to be a linear change,
I could use pwm lines thin enough so it doesnt show in the signal.
I have a new epson stylus photo R285.
unfortunatly I intended to get one with waterporrof ink but
they never make it clear if its not waterproof in the sales blurb of the
printer
you have to go and delve into the ink itself.
does anyone know how compatable the two different types are ?
pigment type seem to be the waterproof ones and dye based arnt.
Im not sure a pigment based ink would do anything more than just clog the
jets up permanently wich would be a shame.
a waterproof coating might interfere to much.
many thanks
Colin =^.^=