Messages

5201

Mach4 General Discussion / Re: User range of pound variables

« on: February 22, 2018, 01:56:27 AM »

Hi,
this is a later revision, I copied them into my Mach4 Docs folder so they are at hand when coding:

http://www.machsupport.com/forum/index.php/topic,30323.msg210742.html#msg210742

Craig

5202

Mach3 under Vista / Re: Issue with slave motor when running gcode

« on: February 22, 2018, 01:43:35 AM »

Hi,
one of the more popular choices is the UC100, its been around for a long time, just beware that there are swags of Chinese knockoffs of that particular board.
If you go to buy something buy off the manufacturer direct or their nominated distributor. Don't get ripped!

Craig

5203

General Mach Discussion / Re: I need use the motor brushless with 5 axis stepper card

« on: February 22, 2018, 01:25:42 AM »

Hi,
do you have an Arduino? This idea wont work without it.

Craig

5204

Building or Buying a Wood routing table.. Beginnners guide.. / Re: Motor Sound and Motor Temperature

« on: February 22, 2018, 01:22:34 AM »

Hi garylucas,
according to physics inductance does not dissipate energy. Low inductance means a low number of turns in a winding and with a low number of turns you have a
lesser length of wire to complete the turns and can use wire of bigger diameter. Low inductance tends to go hand in hand with low resistance.
According to physics resistance is the only circuit element that dissipates energy. Your low inductance motors are probably low resistance types and consequently
run cool.

To OP, no, motor current is a rating determined by the manufacturer of the motor which is in turn determined by the physical properties of the motor.
Some manufacturers will tolerate running their motors hot in order to maximize the current and therefore torque to appeal to the market. Others favour
a more conservative rating which will see their motors run cooler but probably with a little less torque.

Craig

5205

Mach3 under Vista / Re: Issue with slave motor when running gcode

« on: February 22, 2018, 01:08:38 AM »

Hi,
I'm pretty scathing of poorly performing/supported Chinese made boards. Those people who buy them and then insist others help them fix all the
problems with them are on a hiding to nowhere.

I'm sure that you've seen enough posts to know that even good controllers can be challenging enough without buying a whole bunch more problems
with a dodgy board.

If you stick to the manufacturers on my list you wont go wrong. You may at some point realize that board B actually has a feature that you didn't appreciate
when you bought board A....but at least board A wont let you down.

Craig

5206

Mach4 General Discussion / Re: User range of pound variables

« on: February 21, 2018, 06:51:56 PM »

Hi Mike,
this is the best info I have, it was compiled by poppabear....I miss him.

http://www.machsupport.com/forum/index.php/topic,27396.msg193456.html#msg193456

I use variables #500 onward for local stuff and they are saved between sessions.

Craig

5207

General Mach Discussion / Re: computer

« on: February 21, 2018, 06:47:37 PM »

Hi,
yes that will work, its got 'muscles on its muscles' and is not really necessary.

Note that because it has a 64 bit OS you CANNOT use a parallel port but MUST use an external motion
controller like a UC100 or ESS or PMDX.... etc.

My machine is run by a dual core Atom single board computer with on chip graphics, its so underpowered that
its hard to compare your PC to it...but it runs Mach fine, Mach3 for several years with two parallel ports
and now Mach4 and an ESS. The truth is you don't need a hugely powerful PC to run Mach, what you need
is a PC which sticks to the job and not try and do all sorts of other stuff.

Your Window 10 Home for instance has automatic Windows updates which you cannot turn off, if the PC
decides its time to update then Mach will stop. Not ideal but thats Microsoft for you!

Craig

5208

Mach4 General Discussion / Re: Home Signal

« on: February 21, 2018, 11:40:01 AM »

Hi Steve,
yes, great idea.

Craig

5209

Mach4 General Discussion / Re: Home Signal

« on: February 21, 2018, 08:02:12 AM »

Hi,
the error that OP referred to in the quote occurred if he disabled the homing signal.

OP would disable the C axis homing signal to prevent the log from filling up with notifications each revolution of the spindle.
Then the C axis did not have a correctly configured home switch and the 411 would object and throw a genuine error.

The challenge is to provide a programmatic means to have an indexing (C axis) OR a regular spindle without undesirable log entries when in spindle mode.

Craig

5210

General Mach Discussion / Re: Spindle orientation on a Bridgeport...

« on: February 21, 2018, 07:14:43 AM »

Hi Dave,
this is from smurph:

http://www.machsupport.com/forum/index.php/topic,35694.msg248927.html#msg248927

The spindle dogs have to engage, a BT spindle taper is to steep to take the cutting torque like a Morse taper. Additionally if the dogs did not
line up the taper would not meet anyway.

Craig