1995 Kira CNC drill tap machine
Made in Japan
quick table rotary pallet changer
Fanuc 20M control
Come see it run.
We can load the machine at no charge.
Located in Round Lake, IL.
I would first look in your manual to see if Nakamura gave you an M-code or other method to allow for this. They should have. If not, you can try the method discussed in the thread linked below.
There's one on Ebay for under $20k.
OP says he needs a sub for back side tapping. I'm assuming he means with live tools. Do you know if the sub has C? Positioning? Can you get live tools that face the sub?
It seems that on a lot of the older machines with live and sub, the builder didn't...
I don't believe the AS machines are made in Japan like most other Nakamuras, FYI.
Do you feel that the linear guide, flying-wedge design has the rigidity for your tougher jobs?
I think that Grimsmo has Youtube videos talking about his. They may or may not be helpful to you.
I remember reading this in the Guhring catalog. I believe they said when spotting with a 90 degree center for a HSS drill to create a spot that is 70% of the diameter of the drilled hole. That's what I've been doing and have had good success.
I recently did the live tool / main spindle drilling thing with some small HSS taper length drills. I split the rpms 50/50. It worked O.K. The holes weren't perfect, but they were good enough for my purpose. I only had 20 parts to make, so I didn't bother dialing it in any further.
I never put another code on my tool call line, but maybe it works. Once you get your battery situation straightened out, you might want to try getting rid of that M41 on the T line. M41 is most likely to specify the high-speed winding of the spindle motor. You can put it on a separate line...
I posted last year about a strange alarm I was getting on a Brother TC-31.
Basically, I am getting a random alarm for an option I don't have. I found where the alarm signal is coming from, and there...
I have re-threaded parts on a CNC lathe before. It's a little complicated, but it works and is worth it when you have a lot of high-value parts that you need to save.
You need to come up with a way to load the parts in the spindle so that the existing thread orients the same way each time. My...