Messages

231

Show"N"Tell ( Your Machines) / Re: Just got a lathe to retrofit

« on: September 27, 2010, 03:45:21 PM »

Very Nice.... Looks great !

JH

232

Show"N"Tell ( Your Machines) / Re: Just got a lathe to retrofit

« on: September 24, 2010, 04:28:06 PM »

Nice work, sometimes its hard to get back on a project after sitting for a while.   Stay with it, can't wait to see some chips flying.

JH

233

General Mach Discussion / Re: Homing Issues..Assistance Appreciated

« on: September 23, 2010, 02:57:06 PM »

What happens when you try to reference home?   Do they move at all.  Have you used the diagnostic screen to test the switches with Mach?

234

General Mach Discussion / Re: G84 Tap Cycle, VFD, Floating Tap Holder and Mach3: Video

« on: September 21, 2010, 10:22:28 AM »

Looks like you found the build link...  Here it is for others that be looking

http://www.machsupport.com/forum/index.php/topic,13365.0.html

I can't tell you enough how happy I am with Mach3.  It does have a couple issues when we do things we should be doing...  But overall, it is a very nice tool with the flexibility to allow us to customize just about anything we need.  THANK YOU !

JH

235

Show"N"Tell ( Your Machines) / G84 Tap Cycle, VFD, Floating Tap Holder and Mach3

« on: September 21, 2010, 10:17:00 AM »

Mach3 can only rigid tap if the spindle is under tight STEP / DIR control.  STEP / DIR control converted to an analog signal +-10VDC then to a VFD does not have the tight control that you need for rigid tapping.  You must have a servo or stepper to do rigid tapping.  The real issue is the deceleration of VFD into the hole and the acceleration out of the hole and syncing this to the Z axis.

Sense we have a VFD we cannot sync the Z Axis to the Spindle.  So ..... we purchased a Floating Tap Holder.  This allows for small amounts of control error between the Z axis and Spindle. 

Below is the video of the initial testing using a G84 Tap Cycle with a floating tap holder.  These are ¼ 20 threads on a ½ plate of 6061.

<a href="http://www.youtube.com/v/nQS2Q_aC_P4&amp;hl=en&amp;fs=1&amp;rel=0&amp;color1=0x006699&amp;color2=0x54abd6&amp;border=1" target="_blank" rel="noopener noreferrer" class="bbc_link bbc_flash_disabled new_win">http://www.youtube.com/v/nQS2Q_aC_P4&amp;hl=en&amp;fs=1&amp;rel=0&amp;color1=0x006699&amp;color2=0x54abd6&amp;border=1</a>

Thanks
JH

236

General Mach Discussion / G84 Tap Cycle, VFD, Floating Tap Holder and Mach3: Video

« on: September 20, 2010, 10:45:23 AM »

Initial testing with the G84 Tap Cycle and Mach3: Using a floating tap holder from MariTool we were able to Tap ¼ 20 threads with almost no tuning to our system.

We disabled the dwell feature on the spindle start and stop and tested with foam core first, then plastic and finally the ½ plate of 6061

<a href="http://www.youtube.com/v/nQS2Q_aC_P4&amp;hl=en&amp;fs=1&amp;rel=0&amp;color1=0x006699&amp;color2=0x54abd6&amp;border=1" target="_blank" rel="noopener noreferrer" class="bbc_link bbc_flash_disabled new_win">http://www.youtube.com/v/nQS2Q_aC_P4&amp;hl=en&amp;fs=1&amp;rel=0&amp;color1=0x006699&amp;color2=0x54abd6&amp;border=1</a>

Rock On Mach3 !

JH

237

Show"N"Tell ( What you have made with your CNC machine.) / Re: Couple of simple gifts...

« on: September 15, 2010, 02:17:03 PM »

Dave,

Thanks for the info!

Where do you get the material from ?  Home Depot or something ?

Its just looks great!!!!   I would love to try for myself sometime.

Thanks,
JH

238

Show"N"Tell ( What you have made with your CNC machine.) / Re: Milling Vise for pocket work

« on: September 15, 2010, 11:46:37 AM »

Very Nice Work !

JH

239

Show"N"Tell ( What you have made with your CNC machine.) / Re: Couple of simple gifts...

« on: September 15, 2010, 11:42:04 AM »

Dave,

Looks great !  What tooling are you using for that, RPMs, speeds ?

Details please,

JH

240

PoKeys / Re: Led's on control panel

« on: September 14, 2010, 10:18:17 AM »

OK Thanks;  Use the the 5V output from PoKeys to supply the LED circuit VCC. 

The user manual indicates that 400mA is the MAX on that pin too, so you should be able to drive an MPG and several LEDs with this source.  Just make sure you keep it under 400mA total.