Bridgeport Series 1 CNC

[tomcncParticipant @tomcnc]

Hello,

I got the Interact into its place and started to clean.
Some photos. They show some wear on the slide that transports the table inwards and outwards at the arrow.
It is not so bad on the other side. The oil marks or scrap marks can be seen to decrease.
On a scale of 1 to 10 where would this amount of wear be put? (10 being terrible).
I don’t think it’s too bad. The ‘ways’ are supposed to be chromed on these machines. Is the chrome still there?

There is oil on the belt that moves the table from side to side. Is this normal? The belt that moves the table inwards
and outwards is bone dry.

There is a pile of chips in the cavity that holds the cog wheels for moving the knee up and down. I will have to clean.
What is the best way to get at this area. I am thinking to remove the motor that moves the table inwards and outwards.
I thinik you can get at the cavity that way. It’ s big job to take off the table.
The rubber mats or rubber sheets that keep chips away from the ‘ways’ were in a bad state. I suppose that’s how so many
chips got in there.
Would rubber car mats do as a cheap alternative instead of purchasing the real thing. They are about 26 pounds each. I need all three. I could get car rubber mats second hand from the car breakers yard for damn all. I could purchase new one’s for a little more that damn all.

There is a sump pump for coolant. An automatic (or hand pumped?) lubricator for the ‘ways’, and an oil/water mist system too, which is located on the back of the machine. Perhaps it’s a standard thing on an interact?

Have yet to plug in the generator and see if the Interact will go at all……
I had a bit of a job getting it into its proper shed and over into the corner. It’s no perambulator.

@ Les.
How much did it cost to dump the TNC 150 and put in a modern system (approx.)

I don’t know exactly what sort of TNC 150 I have. Is it a B or whatever. Will have a look. How would you know?

 

” Far quicker to debug that VDU with a £600 oscilloscope than a £6 multimeter…”

If I could debug!! I have an oscilloscope.

 

Tom

[Les RileyParticipant @lesriley75593]

It probably cost around £1000 but I got £500 back by selling my TNC on eBay to someone who’s unit had just failed and was desperate to get back in action!

The biggest cost was a motion controller. This one – https://en.cs-lab.eu/product/6-axis-cnc-control-system-csmio-ip-a-board-with-software/

[seemackParticipant @seemack]

I don’t know exactly what sort of TNC 150 I have. Is it a B or whatever. Will have a look. How would you know?

On the back of the controller box there will be a sticker which should have the model number and software versions.  The TNC151B and TNC155B have the sticker in the top left corner as viewed from the back.

[tomcncParticipant @tomcnc]

 

Thanks for replies.

 

@Les.

Are the new optical encoders difficult to place on the machine. Do they go onto the DC servo motors that are on the machine or do you fit new motors (stepper motors).

Doe’s the same company supply them.

 

Thanks.

Tom

 

 

[tomcncParticipant @tomcnc]

 

I have a TNC 150 B as per the picture.

Also I have a picture of the DC servo motors. Is there a gear box in this motor?

 

I have also uploaded a picture of the switches inside the controller box, the box with all the buttons on it.

There are metal chips in there sitting on the switch (circled) and on the bottom of the box. There seems to be metal chips in all the cabinets. This may account for all the blown fuses that I see in the bottom of the cabinets.

Cheers,

Tom

[seemackParticipant @seemack]

Hi Tom

Don’t give up on the controller yet. Give it a good clean and download all the manuals from Heidenhain Web side then study the test all the circuits. Ensure oil is in the reseviour at the back then ensure 24volts is going to the controller.

I have the same machine with tnc151b which  I’ve added a 4th axis and touch probe.

As for the screen I’ve just got a 14″ led monitor working using  the RGBtoHDMI interface board.

It converts the inverted 5v TTL signals into HDMI for modern screens. A lot of options available for any video signal types.

RGBtoHDMI – 6-bit TTL Edition

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