Tonsen 4 Axis Controller/Bob

[Pointy]

I have this BOB in a machine i purchased a couple of months back, so far ive had no problems with it. Although im not doing anythign greatly extravagant with it. I would like to add home switches to it though and maybe a touch off plate but so far ive not found where to connect the wires.

Any help would be appreciated

Sean

Here's a a pic with the parallel pin locations...



Don't forget that none of these are opto-isolated. I will be posting on my blog in the near future on how to make an opto-isolated addon board for this controller.

Regards,

Les

[Jester]

Ok this is going to sound dumb but what does optoisolation do? lol sorry but im very new to this. I will probably be connecting microswitches as home switches, although i have some prox sensors i think in the garage which need 8v according to the packing .

[Lee Roberts]

Ok this is going to sound dumb but what does optoisolation do? lol sorry but im very new to this. I will probably be connecting microswitches as home switches, although i have some prox sensors i think in the garage which need 8v according to the packing .

An opto-isolator use light to transfers electrical signals between two circuits, preventing high voltage from affecting the system receiving the signal.

.Me

[EddyCurrent]

An opto-isolator use light to transfers electrical signals between two circuits, preventing high voltage from affecting the system receiving the signal.

.Me

It's called Galvanic Isolation

[Pointy]

Ok this is going to sound dumb but what does optoisolation do? lol sorry but im very new to this. I will probably be connecting microswitches as home switches, although i have some prox sensors i think in the garage which need 8v according to the packing .

Just think of it like this...

If you have a major malfunction and 240v gets sent to your parallel port, it will probably fry the port and motherboard. Opto-isolation helps to prevent that.

Having said that, I have been running my home/limit switches without isolation on the Tonsen BOB for the last 6 months without issues. I have however just built the opto-isolated addon board to hook up to the Tonsen BOB, I just haven't had time to test it properly. Now that the Christmas malarkey is out of the way, perhaps I can get to test it.

Regards,

Les

[Jester]

Having said that, I have been running my home/limit switches without isolation on the Tonsen BOB for the last 6 months without issues. I have however just built the opto-isolated addon board to hook up to the Tonsen BOB, I just haven't had time to test it properly. Now that the Christmas malarkey is out of the way, perhaps I can get to test it.

Regards,

Les

Ive been looking for add on boards for this bob did you design this yourself or are there shcems on the net for it .

Cheers Sean

[Pointy]

Ive been looking for add on boards for this bob did you design this yourself or are there shcems on the net for it .

Cheers Sean

It's something I am designing myself, but be warned that I am no expert and this is just a hobby for me. I started a thread here to discuss the board, but the schematic shown there is the 1st attempt and contains errors. Once the board is tested I will post the final schematic.

Regards,

Les

[ukracer]

Here's a a pic with the parallel pin locations...



Don't forget that none of these are opto-isolated. I will be posting on my blog in the near future on how to make an opto-isolated addon board for this controller.

Regards,

Les

Did you get time to do this mate?? Have you a link to your blog??