Probably going to be a bit of a long, disorganized post, but our shop has been been leveraging our CNC machines more and we're sure we can get even more use.
One bit of a problem though, is that spending a large amount of money on a fancy machine would pay off I'm sure, but would take a long time as our work doesn't result in continuous usage. To better illustrate where we stand, I'll give the gist of our CNC machines.
CNC Plasma:
CNC Punch Press:
CNC Mill:
Meanwhile we're of the opinion that a laser would be a good addition, as we do occasionally have to contract out laser cutting services for parts, and if we had a laser in-house we could likely find many more uses for it, like making up for shortcomings of other machines.
Would it make sense (Based on cost, usability, etc...) to look at getting a CNC laser based on our other machines' usage?
Or could we improve our plasma setup enough to get results more like what we might get from a laser?
In that case, would it make more sense trying to find a 2nd CNC mill and refitting mill 1 with an identical controller, finding a CNC mill and refitting both with a newer, 3rd-party controller, or heck even getting a non-CNC mill and converting it to CNC with a matching controller on mill 1?
One bit of a problem though, is that spending a large amount of money on a fancy machine would pay off I'm sure, but would take a long time as our work doesn't result in continuous usage. To better illustrate where we stand, I'll give the gist of our CNC machines.
CNC Plasma:
- Hypertherm cutter and control
- Is typically used a few times each day, primarily for cutting out ducting components
- About 10 years old, appears to be in relatively fine shape
- Cut consistency isn't stellar, seems like some areas of the table are worse than others too (The moving head as opposed to our other machines' fixed heads probably doesn't help)
- Slag is always an issue, machine had been using factory settings all this time so recent adjustments to cut tables have helped, but I'm not experienced with it and don't know how much cut quality can be feasibly improved
- Good for contour cuts, cutting of large pieces, thicker materials, and very large sheets/parts
- Bad for precise parts, thin materials, and holes
CNC Punch Press:
- Wiedmann Centrum 22-ton punch press
- Might not be used for 1-2 weeks at a time
- Volume-wise, use it for everything from hitting out a single sheet of small parts to running 12 hours a day for 2 months
- More than 20 years old, control's work hours have rolled over at least once though (Only goes to 1000 hours)
- Frequent hardware/control issues, everything so far can at least be worked around
- Machine support is lackluster to say the least, most problems we have to find and fix ourselves
- One issue we've never been able to repair prevents us from even running the machine at full speed, very bad for perforation-like uses
- Good for holes, perforations, precision, and little cleanup compared to plasma while being much faster
- Bad for any kind of contour, angled lines are just "acceptable", shapes that don't work well with our fixed tooling, and with tougher materials (Thickness max is about 1/4" for everything we hit but 316 SS, and about 10GA for that)
CNC Mill:
- Old Hurco Hawk mill
- Generally sees the least use (Last time it was used was 3-4 months ago), but when we have parts to make we'll run it as hard as the punch press
- Not sure on vintage, but the controller runs a custom version of DOS 3
- Issues are few and far between, but always stem from the controller
- We do have a relatively low spindle speed (3400 RPM) limit on the machine, but only slows us down when machining plastic parts as opposed to our usual alum/steel
Meanwhile we're of the opinion that a laser would be a good addition, as we do occasionally have to contract out laser cutting services for parts, and if we had a laser in-house we could likely find many more uses for it, like making up for shortcomings of other machines.
Would it make sense (Based on cost, usability, etc...) to look at getting a CNC laser based on our other machines' usage?
If we looked at a CNC laser, would it be smarter to get an independent table, refit our plasma table for laser, or get a punch press/laser combo(Punch press essentially with a laser as one of tools)?
Would a waterjet make more sense?Or could we improve our plasma setup enough to get results more like what we might get from a laser?
If that route, maybe a punch press/plasma combo would be a consideration?
Our only real consideration for the mill is looking into getting a second one, and getting both of them working on identical controllers so it'd be feasible for 1 operator to babysit both machines at once, have a smoother work process, and a backup in case 1 machine encounters issuesIn that case, would it make more sense trying to find a 2nd CNC mill and refitting mill 1 with an identical controller, finding a CNC mill and refitting both with a newer, 3rd-party controller, or heck even getting a non-CNC mill and converting it to CNC with a matching controller on mill 1?