Bridgeport BTC-1 Milling Machine

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06 Jan 2023 15:14 #261085 by hunterlong
I'm the proud new owner of a BTC-1 milling machine. This isn't really my work, someone else converted it to LinuxCNC and I just bought it from them. There is 0 documentation of any kind available for this machine, so it is impressive how they reverse engineered it. My job is just to figure out how to use it and LinuxCNC.

Here are a few photos of it
photos.app.goo.gl/gXBEVYJNcvcbrvvM7

Thanks,
-Hunter Long

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06 Jan 2023 15:22 #261087 by tommylight

There is 0 documentation of any kind available for this machine, so it is impressive how they reverse engineered it.

Yeah, we do that a lot around here, there are several long topics about it.
Thank you for the kind words and welcome to the dark side! :)
Here would be a nice place to look for info, and there is also:
linuxcnc.org/docs/stable/html/

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06 Jan 2023 15:28 #261088 by hunterlong
Thanks! That info looks very helpful.

This machine has a tool changer, that is probably not worth the hassle of getting working. But it is really cool nonetheless. Here is a video of two of these machines with working tool changers:


Any recommendations on how to get started implementing a complex tool changer in LinuxCNC?

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10 Jan 2023 15:42 #261454 by Todd Zuercher
Personally I'd do it with ladder logic, but that is what I'm familiar with. There are a number of possible ways to do it, but it comes down to what you feel comfortable doing.

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10 Jan 2023 18:57 - 10 Jan 2023 18:58 #261481 by hunterlong
Ok, just started learning ladder logic.

Here is a video I just took of the cool mechanism that moves the toolchanger to a different tool:
Last edit: 10 Jan 2023 18:58 by hunterlong.
The following user(s) said Thank You: tommylight

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