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Member postings for Ron Laden

Here is a list of all the postings Ron Laden has made in our forums. Click on a thread name to jump to the thread.

Thread: double acting oscillating cylinder engine
31/07/2019 16:58:24

Geoff, that looks very nice indeed and runs nicely too, well done you

The first little engine I like the look of as a starter is from Julius de Waal drawings which I found free online, its described as a Single Cylinder Oscillating Engine, I dont know if that is a Muncaster, its all new to me.


Edited By Ron Laden on 31/07/2019 17:13:28

Thread: 3 phase - radio puzzle
31/07/2019 16:33:56

Hi guys,

Just to sum up, all the radios are battery operated and all tuned to BBC Devon, though I have tried the channel on both MW and FM. I have tried a radio in the bathroom, in the bedroom, the workshop, the lounge and the kitchen and all are fine except for the one in the kitchen. I have just thought of something though, the electric comes into the property in the kitchen, on the end wall are the meters / consumer units etc, is that where the problem is i.e. the kitchen radio been in close proximity to those.

As well as the EMI power line filter I have ordered, would there be any benefit in fitting Ferrites to the motor cable. I watched an American video last night and a power line filter cured the problems that a guy had in his workshop. He then fitted ferrites to the motor lead simply because he had them in the drawer but when measured with good equipment the ferrites reduced the interference levels even more, just wondered..?


31/07/2019 07:32:12

Thanks guys for your help and suggestions, I will order the cheaper EMI power line filter as suggested by Geoff and Robert and give that a try to start with.


30/07/2019 19:05:26
Posted by Robert Atkinson 2 on 30/07/2019 18:49:41:

Hi ,

The Ideal solution is a two stage block filter like this

But they are not cheap .As Geoff suggests a IEC mains input connector with built in filter is a lower cost ooption. It also has lower perfomance but one like this should cure your problem and provide a handy inlet connection.

I could dig out a used filter if you don't want to order one.
Is your VFD in any kind of enclosure?

Robert G8RPI.

Thanks for this Robert, really helpful. No my VFD is not in an enclosure, it is mounted on a bracket under a shelf with space all around it, it is out of the way of swarf/coolant and in a clean area.


30/07/2019 18:03:25
Posted by Robert Atkinson 2 on 30/07/2019 17:36:23:
Posted by Ron Laden on 30/07/2019 15:13:35:

So it is sounding like I need a filter at the inlet but not knowing what type/spec of filter I need I would appreciate some guidance at what I should be looking for.



Hi Ron,

What is the full model number of your CUB VFD? With that information I can recommend a suitable EMI filter.

The manual can be downloaded here

Robert G8RPI.

Hi Robert, thanks the model number is CUB3A-1


Thread: Muncaster's Simple Entablature Engine
30/07/2019 15:24:49

Jason, I dont want to interrupt this thread but with the running video you mention running off 2-3 psi, is that the norm with small stationary engines i.e only needing low pressure to run. I imagined they would need quite a bit more than that but obviously not.


Thread: 3 phase - radio puzzle
30/07/2019 15:13:35

So it is sounding like I need a filter at the inlet but not knowing what type/spec of filter I need I would appreciate some guidance at what I should be looking for.



30/07/2019 11:43:35
Posted by not done it yet on 30/07/2019 11:25:55:

First thing might be to check whether it is only while the motor is running or while the VFD is switched on. The RFI is likely emitted from the motor feed cable. Is this screened cable? Length of the cable can also be an important factor.

Needs sorting if you have neighbours who don’t yet know why their radio reception is a bit ‘iffy’ on occasions.

Only when the motor is running, motor cable 1.5 mtrs and would need to remove a cover to check if its screened

30/07/2019 10:47:45
Posted by Jon Freeman 2 on 30/07/2019 10:46:04:

Is this Radio Devon on medium wave or fm showing the problem?

A problem on both MW and FM

30/07/2019 10:33:59
Posted by Bazyle on 30/07/2019 10:25:41:

Are you tuning to the same station in each location?

Yes local bbc radio Devon on all of them, tried two bedroom radios and they are fine.

30/07/2019 09:59:25

Thanks guys, so it sounds like a filter problem, but why the kitchen radio which is 30 feet away and not the workshop one which is only 5 feet from the lathe, dont understand that..?

30/07/2019 09:48:24

Just checked again and the kitchen radio doesnt actually cut off but it makes an awful noise.

John, changed the radios over and still the same, the kitchen radio location is the problem, the workshop one is fine.

30/07/2019 09:18:52

The Warco 918 lathe I have recently bought is 3 phase with a IMO Jaguar Cub VFD and all is well. However the wife pointed out yesterday that when I run the lathe her kitchen radio (battery operated) stops working. I checked it out and she is correct and yet the workshop radio again battery powered and only 5 feet from the lathe has no problems.

Any ideas guys..?

Thread: Little experience so advise needed
30/07/2019 08:52:59

Good here isnt it, I had never heard of Blue Pivot Steel, learn something everyday.


Thread: Laser cutting service
29/07/2019 15:46:17

Hi Bill,

Alco Engineering have Laser Cutting, I heard good things about them when I was working but have not used them myself. What their pricing is like I dont know but worth giving them a ring, they are based at High Bullen, Torrington so local.

Tel 01805 622461


Thread: My new lathe a Warco 918
29/07/2019 15:19:02

Andy, I am awaiting delivery of a set of 3 DRO,s for the mill, I guess its the digital display I associate with "DRO" regardless of what its measuring.


Edited By Ron Laden on 29/07/2019 15:20:03

29/07/2019 15:01:56
Posted by Andy Carruthers on 29/07/2019 14:54:33:

RPM not DRO?


RPM yes but it is still a DRO (digital readout) isnt it..? well thats how I always refer to them.


29/07/2019 14:19:26

Fitted a DRO this morning.



Thread: New Mill - Starter Tooling
28/07/2019 19:16:55

Thanks Rod, that is helpful.


Thread: Further Adventures with the Sieg KX3 & KX1
28/07/2019 19:15:14

Thanks Jason, impressive the way it works and also the information it gives at the end of the job.

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