Messages

61

Show"N"Tell ( Your Machines) / Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion

« on: July 29, 2012, 09:29:47 PM »

Made some way cover slides to replace the missing ones...   Where did the old ones go? 

JH

62

Show"N"Tell ( Your Machines) / Re: 1989 Bridgeport Interact 412 Retrofit

« on: July 27, 2012, 08:50:49 AM »

Looks like a solid machine to convert.  You got a lot of work ahead of you....

JH

63

Show"N"Tell ( Your Machines) / Re: 1989 Bridgeport Interact 412 Retrofit

« on: July 26, 2012, 11:16:11 AM »

Looking forward to seeing your progress!

JH

64

Show"N"Tell ( Your Machines) / Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion

« on: July 18, 2012, 04:55:00 PM »

Good work JH. How are you doing with the axis servos...I noticed you had to downsize the motors to stay with the single phase power supply. Do you think they will be  powerfully enough to move that big bed and cut metal at the same time.
I managed to get a 1.5kw single phase Yaskawa drive and motor. The new Sigma5 is very compact..I got a new old stock Sigma 2 drive and a 8nm  1500rpm sgmgh motor..its a real beast of a motor for a single phase unit! Not cheap though..the sigma5 motor/drive is about 1800 gbp.

John,

These are lower wattage than the stock as we talked about before, but the torque is more in line to the stock servos.  Only time will tell once we start making chips....

http://www.machsupport.com/forum/index.php/topic,19480.msg139258.html#msg139258

Thanks
JH

65

Show"N"Tell ( Your Machines) / Doors and Slides

« on: July 18, 2012, 01:48:43 PM »

The 2 side doors have been painted and assembled with new rollers and bearing.  I was able to reuse the rubber seal for when the doors are closed.

The BIG electronics enclosure has also been painted and some of the hardware has been installed.  The cooling system mounts in that big hole on the right door.

Only the main IRON structure between the coolant and electronics enclosure, the 2 front doors and spindle housing remains to be painted. 

Thanks
JH

66

Show"N"Tell ( Your Machines) / X and Y Servo Covers and Way Covers

« on: July 18, 2012, 01:34:45 PM »

All the sheet metal around Y Axis Servo has been painted and installed.  There are about 8 different parts that are under the way cover used to protect the servo from coolant and to provide a drain into the main enclosure.  The Y Axis way cover has been rebuild with rubber stops and delron slides. 

The X Axis servo covers are also painted and installed.  Next up will be the cleanup process for the X way covers and the back Y way cover.  The X Axis way covers are in good shape, only some the delron slides and rubber stops will need to be replaced. 

The back Y way cover will need sheet metal work.  I think someone was standing on it or something large was dropped on it as the internal fins are bent so bad it will not function properly.  I will look and function like new when it’s all done.

67

Show"N"Tell ( Your Machines) / Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion

« on: July 13, 2012, 05:59:44 PM »

Run the MPG to your parallel port inputs, not via pokeys.   All other functions of the pokeys work great!

You might be able to run your stock VFD on single phase, it should have 3 phase rectifier to generate the 400 Volt DC Bus, if it doesnt since the phases, it will work.  If not, swap it out.   The stepper gets hot running at 6000RPMs, I have added some heat sinks to case to keep it cool.  Its warm, but it can be touched, so its not exceeding the max case temp.  I figure when it fails, I'll just replace it...

The pipes will work for moving it.  I have moved mine several feet with just a 3 feet bar.  You might want to invest in a toe jack.  I got one cheap from northern tool, its great for lifting to help move and level.

http://www.northerntool.com/shop/tools/product_200349250_200349250

Oh, I am using a CNC4PC serial mod bus on my other CNC, works great for non-realtime I/O

Hope this helps,
JH

68

Show"N"Tell ( Your Machines) / Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion

« on: July 12, 2012, 04:13:59 PM »

Joey,

Your going to love your 412.  Its a little tank, boxed ways, nice foot print, powerful, ect ...

There are several things you might consider doing a little different.  1) PoKey is only OK for MPG, not great, use different Inputs for your MPG.  2) Add Mod bus serial for additional non-realtime inputs  (ATC Inputs, Oil Level, Draw Bar,... ).   3) Try to keep you VFD (we had to make the spindle orientation ourselves and it was a pain)

Do you have 3 phase available ?  Some of our design changes were based on the fact that we only single phase and power is limited.

Some of those boards you see are hand made to interface PC electronics to the machine hardware. 

I will be glad to help you with your build, I would suggest doing it in phases one step at a time and test each stage before moving onto the next.   

Start a new build thread to document each step.

We run this machine at least 3 to 4 times a week.

Thanks
JH

69

Show"N"Tell ( Your Machines) / Re: 9x20 Chinese Lathe Conversion

« on: June 26, 2012, 11:36:54 PM »

Nice Job Dan! 

70

Show"N"Tell ( Your Machines) / Re: 1997 DYNA MYTE DM4800 VMC to Mach3 Conversion

« on: June 21, 2012, 05:59:03 PM »

I love the "pride" you put into your work JH.

It's funny how I'm thinking to myself, "hell, I'd be glad just to be making parts on this monster, lol!"

Always enjoy seeing your work-
Dave

Thanks

JH, what kind of paint are you using and how are you applying it? What sort of prep work did you do before hand?
Nice work so far!
Marty

Marty,

Degrease and wash, clean with paint thinner, sand with DA 40 grit, 2 coats of oil based paint using a 3 roller.  The oil based paint takes about 12 hours to dry and flows out real nice.  It hardens in about 4 days leaving a clean durable finish.  Its all in prep work, the paint is the easy part.

Thanks
Jh