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91

Tangent Corner / Where not to live.

« on: July 29, 2019, 07:52:13 AM »

Space is a bit tight at London’s Heathrow International and because of it’s size the Airbus A380 can be a scary sight when landing on 09 Left.

(The planes don’t actually pass over the top of these houses but they are very close).

Tweakie.

92

General Mach Discussion / Re: 6040 cnc depth of cut and z zero

« on: July 29, 2019, 01:10:48 AM »

As ZASto has already said - check your 'Z axis calibration? (steps per)'

The Mach3 Settings page has an Axis Calibration Set Steps per Unit - just click and follow the on-screen instructions to check your Z axis steps per are correct.

Tweakie.

93

Mach4 General Discussion / Re: Upgrade Mach3 to Mach4 using smoothstepper and Machmotion I06?

« on: July 27, 2019, 07:22:17 AM »

Hi Jevs,

There is an old saying… “If it ain’t broke don’t fix it”

Basically, if Mach3 does all you want and it is working well then leave well alone. If, on the other hand, Mach3 falls short of your requirements then move on to Mach4.

Just my 2 cents

Tweakie.

94

General Mach Discussion / Re: Machining relief problems

« on: July 26, 2019, 05:01:12 AM »

Hi Chuck,

Welcome.

Your Gcode and Mach3 set-up seems to run just fine here with a maximum Z depth of -5.848 mm in your test Gcode file. If your cutter is going deeper than that then two possibilities spring to mind...

1) Your cutter could be loose in the collet and it is moving during the cutting operation.
2) You could be loosing steps on the +Z axis moves - try reducing the Z axis Velocity and Acceleration (in Motor Tuning) by 50% and save the changes - does it still cut too deep ?

Tweakie.

Another thought comes to mind - is your spindle motor tight in it's clamp ?

95

Show"N"Tell ( Your Machines) / Re: Cnc Id od and thread grinder

« on: July 26, 2019, 03:00:14 AM »

Yes it could be done where the work rotation is essentially a Rotary Axis.

Are you planning on Mach3 or Mach4 ?

Tweakie.

96

Show"N"Tell ( Your Machines) / Re: Cnc Id od and thread grinder

« on: July 26, 2019, 01:19:39 AM »

Quote

1 question I am planning on using a stepper for the spindle ( Low rpm) and a y axis for the thread grinding. Is there a way to config mach that way. 1 time keep turning 2nd move proportionally to the z axis. ( the 2nd I can do with gcode easy enough).

I am not sure I fully understand this ?

Tweakie.

97