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What kind of equipment are you running?

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Hi Daz. Welcome.
I'm Mig from Boronia.

I recommend you take a look at linux cnc. I gave up on XP and Mach. Really impressed with the Linux package.

For CAM I am using HSM express which is a...

I used to have the same size lazer. Miss it lots.
Took me a while to dial in each material.

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I am a convert to Linux. Especially for CNC. But this doesn't have to be a us vs them debate.
I still do all of my CAD CAM on windows (8) and am writing this ony my Android (Linux based) phone.
...

Here are a few pics of the phone case I made. Before anodizing. It's for a Samsung Galaxy S-II.

Great learning experience for the machine and software..... but maybe a little too complex.
...

Z

This shot is a good before and after. These are the scraps from the center of the phone case above. bottom piece is before.

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I also finally sorted out a problem that was really annoying me. When touching off the z axis during manual tool changes it would be off by aprox 1mm and I would have to pause and redo the touch off....

This is supposed to be a phone case...... I had to abort the run about 3/4 through when I realized that one operation was cutting on thevwrong side of the feature. One click to fix in HSM but too...

Ok. I am back up and running.
Now have a direct belt from the motor to thr spindle giving me 5500rpm.
Also added a second fogbuster.

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Runs much quieter. Also after...

Forgot to mention why the drive belt was torn up.

I had a clasic NASA moment! Mixing imperial and metric.

I am running xl belts because they are easier to get in lots of sizes.
One of the...

So I was never able to run my spindle up on the high gear (10k RPM) the motor just didn't have the grunt for this type of spindle.

So now the plan is to spin the motor 180deg and remove the...

I haven't posted for a while.... but a few things have been going on.

I have made a few parts and learnt alot about the software packages. Also built a vibration rumbler (some pics to come) and...

On my machine the air compressor used for misting is louder than anything else.

I have eliminated all of the factors you mentioned. I realy don't expect this to return.

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Hi dick. At the moment I only have the spindle on the lower speed pulleys. So rpm is about 3500. 6mm two flute hss cutter. Feeding at 350mm/min with 1mm doc and 2.4mm step over.
Not optimised at...

Like I said, I am looking for an alternative coolant.

Just to be clear on one thing.... the flash point temp is not when the substance suddenly burst int flame. An ignition source is still...

Can't imagine that has a very high flashpoint.....

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Actually, I don't think there is very much vapor with my setup. Certainly don't smell much.

Lots of people spray wd40 from the can when machining al without trouble.

All the same I am...

Wasn't a long term plan. Just easy to source. Plenty of other people doing it too.

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I finally finished a part. This is a spanner for my spindle.

There are lots of things which still need optimisation. Mostly this is from the CAM program.
I am using HSM and am very happy, but...

Further to my earlier post.... I miss read you cutter dia. I was talking about 12ipm on a 1/4" cutter

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I'm doing a similar speed with hss cutter. 1mm doc.
But haven't had time to optimise.
Sould be able to go faster with carbide though.
Reasonable starting point.

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Ok, So I may have been heading towards flaming there..... sorry. Having a bad day at work and probably shouldn't be venting on a forum.

I still think the better comparison is the deflection at...

Not having a go. Sorry if it came across like that. I just don't think the evaluation of the design is that complex.

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Well this is one of the best examples of misuse of FEA I have seen. This is like proving the earth is round......

Surely the whole point of the spacer block is to raise the Z axis. Then why...

Just an important note on safety for stepper power supplies.

When dealing with DC power supply, generally we can be quite indifferent to safety, certainly compared to mains AC supply.
The reason...

Ok, I finally solved my problems and am much much happier with the machine operation.
Just incase any of this might help someone else I will outline what steps I went trough.


1. BREAKOUT BOARD...

Solid works for cad and hsm for cam.

Now I have simplified to just G3 commands and still having issues..

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Tore down the table to fix looseness in the Y nut mount. Fixed a few other things whie I was there.

Re installed Mach3 and things are better. ... bit still having issues with circles.

Left...