Messages

5731

Show"N"Tell ( What you have made with your CNC machine.) / Re: First wood sign on my CNC Router

« on: May 21, 2012, 06:01:14 AM »

Nice work Dave - things like this make all the machine building time worth while.

Tweakie.

5732

General Mach Discussion / Re: Help with electrical interference

« on: May 20, 2012, 03:46:56 AM »

Thanks Tweakie,
This was something I was also thinking about doing but wanted to hear from others first. So I am clear, we are talking about a normal Ceramic Cap (not electrolytic)??

Appreciate your good advice.

Stuart

Hi Stuart,

Yes, the miniature ceramic disc caps are OK (don't forget to sleeve the leads, if necessary, so they cannot short to each other)

Tweakie.

5733

General Mach Discussion / Re: Thanks to all for your help, now bought the license and made first parts

« on: May 20, 2012, 01:35:57 AM »

Nice work Al. 

Tweakie.

5734

General Mach Discussion / Re: Help with electrical interference

« on: May 20, 2012, 01:33:55 AM »

Hi Stuart,

This is worth trying before doing any major work....

Connect one 0.1uF capacitor between each used input to you BoB and GND. This will mostly suppress noise spikes which may be triggering you stop condition.

Tweakie.

5735

General Mach Discussion / Re: z axis loosing steeps

« on: May 19, 2012, 01:59:13 AM »

Hi Dan,

Try reducing you acceleration for the z axis to 200 and see if this makes any difference (don't forget to save axis setting after making the change).

Tweakie.

5736

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 18, 2012, 12:13:41 PM »

Lump Hammer ?? surely a Ball Pein Hammer would be more appropriate 

Perhaps not - I recently spent some time in A&E after my misunderstanding of the usage for my wife's new Dyson Ball Cleaner.

Tweakie.

5737

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 18, 2012, 11:29:26 AM »

Hi YNN,

You should never take anything as being inevitable - there is always chance.
A genetic inheritance may skip a generation or a genetic pattern being modified between the combination of both parental sets may resolve a possible problem. Chance is always there.

Tweakie.

5738

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 18, 2012, 05:54:46 AM »

Ooops,

A little correction to the above post - It was Terry's suggestion for the over-travel switch. 

Tweakie.

5739

Tangent Corner / Re: Extremely clever electronics.

« on: May 18, 2012, 05:24:17 AM »

 

Tweakie.

5740

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: May 18, 2012, 04:02:15 AM »

This text is 0.5mm high and engraved 0.05mm deep.

OK, it is not that good and would probably make a watchmaker cry if he saw it but the purpose of this (and the previous examples) was to test the accuracy of the prototype tool setter and so far, I am extremely pleased with the results.

I have taken on Stirlings suggestion of incorporating an over-travel switch (just in case) to operate a ‘limit’ input. This will involve a re-design of the PCB and the connecting cable, plug and socket will then need 4 wires instead of 3.

Something to keep me off the streets for a while. 

Tweakie.