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Search: Posts Made By: nisma
Forum: 55. Dust Management Tue 21 May 2013, 04:39
Replies: 18
Views: 28,399
Posted By nisma
This is for the Z axis, i like the idea of...

This is for the Z axis, i like the idea of attaching it with magnets.
Using of clear pcv is a option instead of using the brushes.
http://www.el34world.com/misc/cnc/CNC20.htm

The alternative...
Forum: 50. Toolheads Sun 12 May 2013, 13:22
Replies: 5
Views: 13,508
Posted By nisma
Check out this type of cable system, on a...

Check out this type of cable system, on a mechmate copy for plasma:
http://www.cnczone.com/forums/precision_plasma/111498-precision_plasma_llc_history.html

The advantage is that it needs less...
Forum: Miscellaneous / General / Whatever / Catchall Mon 29 April 2013, 10:11
Replies: 9
Views: 11,586
Posted By nisma
There are two types of vacuum holding. Those that...

There are two types of vacuum holding. Those that build the vacuum and donīt allow
no leaking, then hight absolute pressure is needed. This usually have one O-Ring or a
rubber gasket in order to...
Forum: The Market Place Mon 15 April 2013, 04:18
Replies: 33
Views: 24,829
Posted By nisma
I use inductive home sensors, no glue logic, just...

I use inductive home sensors, no glue logic, just all connected to the same input with a pull-up resistor, this type of sensor are OC types. Mybe on other part of world push-pull
types are popular,...
Forum: The Market Place Thu 11 April 2013, 10:15
Replies: 33
Views: 24,829
Posted By nisma
What is the difference of the arduino board or...

What is the difference of the arduino board or using the sensor directly with optocoppler.
Why using a relay if you can use opto or if you have it already, i never understood this.
Forum: MechMates already cutting Wed 14 December 2011, 05:10
Replies: 130
Views: 93,749
Posted By nisma
I have a pic (microchip) to do that. Hovever on...

I have a pic (microchip) to do that. Hovever on the mach2 manual, there is a free schematic (if you have buyed mach*) that does a pretty good job.
Forum: 70. Control Systems Mon 04 July 2011, 09:09
Replies: 4
Views: 6,521
Posted By nisma
Normally even the cnc electronic is grounded,...

Normally even the cnc electronic is grounded, mass and ground are connected on one point for safety reasons. Back to youīr question.
On a plasma system, where a 2-4KV during the high voltage...
Forum: 50. Toolheads Sat 25 June 2011, 06:47
Replies: 16
Views: 24,560
Posted By nisma
Itīs really the diodes or the capacitors. Diodes...

Itīs really the diodes or the capacitors. Diodes are cheap. I suppose the problem is the voltage drop because of the ripple and power loss during the 120hz blanks supplied from
capacitator. Higher...
Forum: The Market Place Wed 06 April 2011, 11:51
Replies: 3
Views: 4,353
Posted By nisma
The same is true for motor cable. I see some...

The same is true for motor cable. I see some savings in $$ and further it allows
to go above the 4khz limit. That why i have asked, if this can be useful for others or not. If not, then just delete...
Forum: The Market Place Wed 06 April 2011, 08:35
Replies: 3
Views: 4,353
Posted By nisma
circuit boards for signal distribution

Hi, iīm designing some board for building a mechmate.
Basically i donīt want use long motor cables, i want use power cables and ethernet cables inside the chain and driver near the motor instead of...
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