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Search took 0.00 seconds. Search: Posts Made By: Tom Caudle
Forum: The Market Place Fri 02 April 2010, 17:54
Replies: 76
Views: 69,816
Posted By Tom Caudle
If their input is CAN (Commercial Area Network)...

If their input is CAN (Commercial Area Network) OR RS232 then you can't use them with any Step & Dir signaling. I have seen several of these type drives out there but they take custom control...
Forum: Troubleshooting Sat 10 November 2007, 14:24
Replies: 11
Views: 13,173
Posted By Tom Caudle
Doug: Take a DVM set of ac volts 200 scale and...

Doug: Take a DVM set of ac volts 200 scale and measure across the coil of the contactor. With the button not pressed you might get a few volts of AC. When you hit the button the voltage should go to...
Forum: 70. Control Systems Sat 10 November 2007, 14:24
Replies: 50
Views: 37,657
Posted By Tom Caudle
Doug: Take a DVM set of ac volts 200 scale and...

Doug: Take a DVM set of ac volts 200 scale and measure across the coil of the contactor. With the button not pressed you might get a few volts of AC. When you hit the button the voltage should go to...
Forum: 70. Control Systems Wed 10 October 2007, 08:55
Replies: 3
Views: 7,668
Posted By Tom Caudle
Short answer: NO Neither does my Ford...

Short answer: NO

Neither does my Ford Truck or even my shop PC (controller). I have to stop and clean my linear slides and lube the leadscrews every 16 to 24 hrs of use. On my plasma table...
Forum: 70. Control Systems Mon 08 October 2007, 18:35
Replies: 3
Views: 7,668
Posted By Tom Caudle
Using a metal enclosure for the electrics vs "plastic" enclosures

Cut from another thread:

I hate to pee on the fire here but you need to understand how heat gets transferred and why airflow is important. When an object heats up it radiates heat or passes it...
Forum: 50. Toolheads Fri 21 September 2007, 17:30
Replies: 38
Views: 56,376
Posted By Tom Caudle
The kerf angle is a function of a lot of...

The kerf angle is a function of a lot of variables. The age of the tip (nozzle). The more the hole is eroded (happens with normal cutting over time) the wider the plasma tail. The applied air...
Forum: 80. Computer Hardware & Software Tue 18 September 2007, 17:09
Replies: 90
Views: 184,474
Posted By Tom Caudle
Those series of opto's are only usable to a few...

Those series of opto's are only usable to a few kilohertz. When your combination of rise and fall times become greater than the period of the shortest pulse you are pretty much through. Most...
Forum: 50. Toolheads Tue 18 September 2007, 16:34
Replies: 38
Views: 56,376
Posted By Tom Caudle
The words "small" and plasma cutter don't often...

The words "small" and plasma cutter don't often appear in the same sentence since plasma is a sheet/panel cutting process and on thin material is done at 200 + IPM. It's not hard to use most plasma...
Forum: 50. Toolheads Tue 11 September 2007, 21:04
Replies: 38
Views: 56,376
Posted By Tom Caudle
Metal won't typically curl (warp) more than .5 to...

Metal won't typically curl (warp) more than .5 to .75 inches. If you cut at the recommended feedrate it does not introduce a huge amount of heat. If you have at least 3 inches of Z travel you will...
Forum: 80. Computer Hardware & Software Tue 04 September 2007, 12:43
Replies: 90
Views: 184,474
Posted By Tom Caudle
Perhaps Aubrey will beat the odds. After having...

Perhaps Aubrey will beat the odds. After having been around all of the lists for 6 + years I have seen dozens of well meaning guys decide that they can build an better/faster/cheaper [pick one]...
Forum: 80. Computer Hardware & Software Thu 30 August 2007, 10:00
Replies: 90
Views: 184,474
Posted By Tom Caudle
From an old power design engineer that has done...

From an old power design engineer that has done motor drives (Up to 10HP) and switching power supplies (up to 2KW) I can tell you that even experienced Electrical Engineers avoid working with high...
Forum: 50. Toolheads Wed 22 August 2007, 12:47
Replies: 38
Views: 56,376
Posted By Tom Caudle
Thanks Hugo. We can make the MechMate into a...

Thanks Hugo. We can make the MechMate into a very nice CNC plasma cutting machine. You will find, that is you build a 3 axis router design and have at least 200 IPM top speeds, you can easily add...
Forum: 70. Control Systems Wed 22 August 2007, 12:47
Replies: 7
Views: 15,164
Posted By Tom Caudle
Thanks Hugo. We can make the MechMate into a very...

Thanks Hugo. We can make the MechMate into a very nice CNC plasma cutting machine. You will find, that is you build a 3 axis router design and have at least 200 IPM top speeds, you can easily add...
Forum: 70. Control Systems Sun 19 August 2007, 16:30
Replies: 32
Views: 30,223
Posted By Tom Caudle
The boxes we use are rated for harsh (wet, dusty)...

The boxes we use are rated for harsh (wet, dusty) environments. The front cover has a heavy rubber seal. Heat is a problem in any closed box with no air flow. While the metal of the box may act as...
Forum: 70. Control Systems Sun 19 August 2007, 16:13
Replies: 7
Views: 15,164
Posted By Tom Caudle
Hey Marc! I DO remember! It took me a while to...

Hey Marc! I DO remember! It took me a while to get around to joining. Things are pretty busy now but I still have time to help a newbie in the electronics.

TOM C
Forum: 70. Control Systems Sat 18 August 2007, 18:38
Replies: 7
Views: 10,404
Posted By Tom Caudle
We (CandCNC) have been watching the whole "dump...

We (CandCNC) have been watching the whole "dump the parallel port" trend intently. We have the experience and capability to design a USB based interface but It is currently my option that USB has too...
Forum: 70. Control Systems Sat 18 August 2007, 18:12
Replies: 32
Views: 30,223
Posted By Tom Caudle
While steel enclosures will take some abuse they...

While steel enclosures will take some abuse they also present a challenge to make all of the cutouts. We switched to the sealed molded fiberglass NEMA enclosures for harsh environments. We can get...
Forum: 70. Control Systems Sat 18 August 2007, 18:02
Replies: 12
Views: 17,189
Posted By Tom Caudle
Gerald, we did an MPG based pendant for MACH...

Gerald, we did an MPG based pendant for MACH (MPG-02). I found it to be neat to use but there were limitations. We used the SDK for MACH and a plug-in to design a smaller version with a 360 deg...
Forum: MechMates already cutting Sat 18 August 2007, 17:34
Replies: 415
Views: 425,838
Posted By Tom Caudle
Make sure you have the correct value for the...

Make sure you have the correct value for the Current limit resistor on the Gecko's They default to 7A with no resistor. Motors should not get too hot to touch. Sitting still they should just get...
Forum: 50. Toolheads Sat 18 August 2007, 17:21
Replies: 38
Views: 56,376
Posted By Tom Caudle
(mostly copied from another thread.......GD) ...

(mostly copied from another thread.......GD)

I have personally built several machines (including "Florence") my first Servo/stepper/plasma/router table. I have helped hundreds others build...
Forum: 70. Control Systems Sat 18 August 2007, 17:21
Replies: 7
Views: 15,164
Posted By Tom Caudle
Gerald thanks for the intro. I do make my living...

Gerald thanks for the intro. I do make my living selling electronics to DIY CNC'rs and a few OEM table vendors. I have personally built several machines (including "Florence") my first...
Showing results 1 to 21 of 21

 
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