Denford Microrouter V4

[andy_con]

anyone got any thoughts on how to connect up this BoB -

https://www.cnc4you.co.uk/Breakout-B...xis-with-Relay

to a spindle v4 board

http://www.diycnc.co.uk/forms/spindleV4.pdf

[andy_con]

lots of help, offered.

thanks

[lucan07]

At first look it appears incompatible to me as your bob is lacking outputs pin 14 on port is usually linefeed or control 1 as used on board shown in spindle board diagram this is not available on your BOB I would contact DIYCNC on the email on instructions tho they may just say buy another bob or possible take feed directly from parallel port.

Knowing nothing about these particular boards I could not advise on non standard wiring.

Just noticed your using a smoothstepper so may be able to pick up 14 16 17 and Gnd from that again not familiar but from memory what I have read may be possible.

A quick google sugests this is possible but be aware that they use the old wiring on the board according to what I read 1-13 on one side and 14-26 on other standard now is odd one side even the other.

[m_c]

Looking at the datasheets, the BOB and V4 are not compatible.

Without swapping either component or buying a new BOB, I'd say wire the V4 straight to the second port on the SS.
You could buy a second BOB which uses common ground for the step/dir pins, but if you're only going to be using the second port for spindle control, I'd just wire it directly.

[andy_con]

with the help of a friend the v4 board is now connected and motor is spinning

but im having a new dro issues in mach.

motors are 200 steps / revDirect drive, no gearing.Lea
dscrew is 3mm pitch (1 rotation moves 3mm) waiting to get exact pitch from denford forum
Microstepping is 1/10 (stepper drivers are set to 10)
so:No. of steps per mm is = 200 * 10 * (1/3) = 667

but when I put 667 into steps per in mach the actual machine moves 550mm but I only get a reading of about 26 on the dro

[m_c]

Your maths seems good.
What do you mean you only get a reading of 26?
What are you actually commanding?
And do you really mean 550mm?

[andy_con]

Your maths seems good.
What do you mean you only get a reading of 26?
What are you actually commanding?
And do you really mean 550mm?

if I use the arrow keys on the keyboard to jog the x axis for example. I travel the whole length of the machine which is 550mm as stated in the denford manual but the dro readout in mach only say 128

so something isn't right