DIY spindle encoder problem

Today I going to make my own spindle encoder disc.
But I have a problem with encoder disc which it is

slot width of the disc should be equal with teeth width or could be different with each other but pitch of the pcd is equal pitch all the time.my case slot width and teeth width same 3mm.But if I am unable cut this solt and teeth same size are any problem with Spindle Index pulse or Phase A?

I planned to cut this encoder disc with 10mm thick disc and will machine to 5mm thickness pcd 114.6mm and OD 120.6mm teeth pitch 3mm,depth of the slot will be suitable size to the optocouplers.
I don't have a slitting saw so I will grind a tool bit 3mm width and insert it to fly cutter and cut the slots.

No ideas #tommy #andy
Hope I will get proper answers next few hours.
Please help me to continue my project.

Hi,
I can’t solve this puzzle myself.
Need comments from you friends.
Tommylight always help me.
Thank you
Where the others???

rodw
BigJohnT
andypugh
Grotious
Pl947 number guy don’t remember his name

Save the world!

I think you are more likely to get a response if you would post a specific question.

ටොමීලයිට්
බරපතල ලෙස translate

slot width of the disc should be equal with teeth width or could be different with each other

What you want is equal on/off time of the A ( and B if its present ) signals.
This will allow the maximum count rate at a given base thread rate.

This usually means that the slots and teeth should be equal width,
though optical sensor design and sensitivity will also affect the on/off times.

I think equal width is a good thing to aim for, but if its too difficult, unequal slot/tooth
spacing will still work, it will just limit your maximum RPM.

Its also worth considering that unless you are threading very
small diameter parts you may not need the encoder to track
the spindle at more than say 1000 RPM