Update:
I've taken the last week of my winter break to tear down the machine. Truth be told, since it came home over a year ago, not a lot has been accomplished. There's been quite a few reasons for this, but it really comes down to my garage being an unusable mess, and my schedule not allowing for it. Leading up to this week, I've spent hours cleaning out the garage, replacing insulation, putting up drywall, organizing, and most importantly, adding a pellet stove to get me through the winter.
That's allowed me to spend the past 10 days focused on the machine (in between holiday festivities with the family, of course). So far, I've managed to:
- Gut all the wiring and pneumatics
- Remove drive motors, motor drivers and belts
- Clean and degrease the Z and X axis bellows
- 3D model new components
- Mount the new control terminal stand
- Clean the machine
Now that you know a little bit about how the Danntron came to be, it's a perfect time to discuss what the intentions are for this machine.
I've heard time and again that it's very easy to let the budget for a machine build go through the roof, and for the schedule to go out the window in turn. To some extent, I will not be immune to this, but I want to mitigate it as much as possible. And it starts with figuring out exactly what this machine is intended to do.
First and foremost, Danntron will no longer be a Datron, in the most literal sense, since it will no longer have any Datron control components.
I have received a lot of questions on Instagram about why I'm going this route, versus finding the missing components and bringing it back into factory spec. The answer is easy: Cost and Time.
The M4 went out of production in the early 2000's, and was supported for about 15 year before becoming obsolete. In the absolute best case, I would need to find thousands of dollars worth of obscure components from 3rd parties in the US or overseas, and painfully piece the machine back together to bring it to early 2000's capabilities. The worst case would be having to purchase the components directly from Datron, if they are even available. For a machine that will only serve my personal needs, this is not a task I'm going to sign up for.
Luckily, I'm doing this rebuild at just the right time. With options like Masso and Acorn for machine controls, ClearPath servos from Teknic, and an abundance of helpful folks in the Instamachinist community, it's a safe choice to start fresh.
So, with that being said, the only limitations now are my abilities, and my budget. Here's the short list of what I am aiming to achieve with the Danntron:
- High RPM spindle - at least 20k RPM max, preferably 30k.
- Tool change capable - Minimum stations: 6
- Tool and workpiece touch probe
- Similar performance to the original (more details to come)
- Q1: 3 axis CNC control
- Q2: Spindle operational, running through programs
- Q3: Electronics self contained and enclosure finished
- Q4: ATC operational, machine fully functional