As for the Tachometer it is one of the cheap $12 units of ebay that uses hall effect sensor and runs of 9V-24v

 

and here is almost finished unit

 

Wow! I am impressed. But I see that the drive enable switch does need to be mounted some place. If the lathe you would use it with has the long brake bar that goes from end to end that could be a handy device to trigger a stop switch from, in case you want to stop the lathe right away from wherever you are working. That is a handy safety feature that some folks insist on having. The start button would be in a convenient location near the clutch engage lever. Most of the lathes that I have used have such a lever, but not all of them. But I have only operated about six different lathes and so I am sure that many are different than what I am familiar with.
Certainly you will need to have the controller where it will not get any chips inside, that would cause serious problems.
And thanks very much for showing us the photos!

 

Max im not sure what you mean by not puting the cw/ccw switch in between the controller and motor.

In typical applications where the drive itself does not have the features of automatic ramp up after switch off or reversal it would pay to set this up externally.
IOW for e.g. the drive does not appear to have reversal, so in order to implement it you will have to reverse the motor leads, to do this you want to disable the drive (EN) and it is also advisable bring the drive up through the set acceleration, otherwise you will have to remember to take the speed pot to zero when flipping the reverse switch.
You will have to test and see if the drive comes up through the acceleration curve when the EN is reset.
Is this for a manual machine or CNC?
Max.

 

In typical applications where the drive itself does not have the features of automatic ramp up after switch off or reversal it would pay to set this up externally.
IOW for e.g. the drive does not appear to have reversal, so in order to implement it you will have to reverse the motor leads, to do this you want to disable the drive (EN) and it is also advisable bring the drive up through the set acceleration, otherwise you will have to remember to take the speed pot to zero when flipping the reverse switch.
You will have to test and see if the drive comes up through the acceleration curve when the EN is reset.
Is this for a manual machine or CNC?
Max.

sorry time taken to reply


its for a manual machine

 

Even on a manual machine it is very important to allow the motor to stop spinning before reversing the drive power. And since I do not see any evidence of a direction control input to the drive electronics, you will need to have a reversing switch to reverse the polarity of the drive voltage. Another option would be to have a non-polarized plug to connect the motor, so that you would reverse the polarity by reversing the plug. But that would bother quite a few folks.But if the drive would be used for more than one machine it may be a very reasonable method.

 

KB drives use a special reversing switch on their manual control boxes, it is a special DPDT switch with centre off, but when going from one dir to the other, the switch has a physical stop method that prevents the switch from going past centre in one stroke, it causes the operator to release the switch before continuing, it also connects a brake resistor.
Their drives also have a reset input that can be used.
The switches are available at any KB or Baldor dealer.
Max.