Boxford TCL 125

[inee]

that went well
I've added two pics one is of the switch is yours thee same if so either remove the bolts on the perspex cover , or with the cover open drill a small hole in line with the allen bolt on the switch housing. remove the interlocks one by one and give em a clean, they probably have not been cleaned since the 90's.

Some lathes were fitted with limit/homing switches many more have only the limit switch to stop you from machining the chuck randomly, you mentioned 2 circuits for the switches, one is for the Z limit ,t'udders for the interlocks.

Quick question did you move the feed pot on the control panel as from memory if its at minimum the axis will just sit there
Again let us know how you get on.

The boards fitted to yours, i haven't seen those versions, top board is the same on most with different components for differing spec.

When you've got a minute can you move the top board ( easiest way is to remove the tow stepper connectors, remove the nylon nuts, then move the top board over a bit an take a few pics of the lower board., and one of the optoisolated board on the speed controller.

A quick note about new control boards is if you want to use the control panel your going to need at least 16 - 20 inputs.
tomorrow i will find the stepper driver data sheets and the index/timing pinouts

i will also put up the dimensions for the limit switch actuator

would look now but i aint had no sleep since Monday

[depronman]

I have updated linuxcnc to the latest development version without issue

Paul


Sent from my iPhone using Tapatalk

[John11668]

May look at linux , but that will be down the linea bit for me . Will probably start with Mach 3
Need to establish what is preventing these traverses from traversing.
Off now to try and trace these interlock wires , Now where did I leave those sidecutters?

[John11668]

Have traced the interlock wiring and tested . All seems fine
Tries the rotary feed controller in all position - no difference

Am I right in thinking that if interlocks were not in there proper positions then spindle would not be expected to start (which it does , forward and reverse and speed variation on both) so relay and lenze controller seem sound .
Will go and inspect the upper board with the stepper drivers .

[John11668]

Pics of boards




Some dubius looking repairs on the upper one ???

Any thoughts anyone

[John11668]

Hi folks .
I have found and downloaded a manual for TCL 160 which includes both mechanical and electrical info and would appear to be virtually identical in the main to 125 and seems to be pretty comprehensive WRT elementary faultfinding.

I will go and have a read.

[Clive S]

Hi folks .
I have found and downloaded a manual for TCL 160 which includes both mechanical and electrical info and would appear to be virtually identical in the main to 125 and seems to be pretty comprehensive WRT elementary faultfinding.

I will go and have a read.

Would you mind putting a link to it if you can.

[John11668]

I will send you a pm Clive.

Site is here , https://www.machinemanuals.co.uk/manual.php?p=204 . Their £12 is a bit better than lathes.co.uk at £65

Looks pretty comprehensive and I wonder if they may be infringing copyright by selling it anyway.
Not sure about the legallity of buying a copy then posting on a forum ??????

Not averse to doing so as long as I know they cant touch you for it.

[inee]

Here's the dimensions of the Z Axis actuator rod.
Forgive the look of it as I'm not good with paint programs. the rod is a 10MM dia bar. The 2 missing dimensions on one pic take from another as for some reason my paint program decided not to allow me to put text on anymore

[John11668]

Looks like email of manual pdf is not working .
Will try to copy electrical pages to a word doc and see if that is a better size to send. (Be after dinner though)