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Member postings for Michael Briggs

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

Thread: Er25 collets
03/01/2021 17:48:43

Hello Jeremy, I bought a few imperial collets for the convenience of the cutter not falling out of the collet when I release it. For example a 1/4" shank imperial cutter falls out of a 7mm collet when it is released, in a 1/4" collet it stays put.

Thread: Problem with DRO's memory or with mine?
02/01/2021 21:37:49

Hello Bill, I have a SDS6 on my lathe. The display counts pulses from the scales when they move while it is powered up and stores the position when power is turned off. It can’t measure if or how far it has moved without power applied.

Edited By Michael Briggs on 02/01/2021 21:41:44

Thread: Hacksaw blade orientation - your opinion please
12/12/2020 18:46:55
Posted by blowlamp on 12/12/2020 14:50:26:

I'm interested in the Femi claim that reversing the direction of blade travel makes their saw cut ~ 60% faster - how does that work, I wonder?

I saw (no pun intended) a Femi video some time ago showing the "NG" reverse blade saw cutting faster than the standard version. The demo used the same fixed weight hung from the handle to load each type of saw.

I don't think the cut is faster per se, just faster for a given force applied by the operator.

Thread: Lidl Portable Bandsaw
10/12/2020 22:40:42

The Femi NG120XL cuts against the moveable vice jaw, not what you would expect. The makers claim the reverse blade direction cuts 60% faster. I bought mine for a commercial project that justified the purchase.

Thread: Myford Metric Conversion
02/12/2020 17:17:31

If the 1481/1 is the same mix as the 1481 but less one gear, you would be able to use either set with the above chart.

Michael

Thread: How to Adjust Old Breaker
19/11/2020 23:15:10

A motor rated MCB will not provide much in the way of motor overload protection.

I understand Dave and Pete's thoughts, but looking at the overload, I don't think phase current inbalance was on the agenda when it was manufactured!

I can't see how it is adjusted from the images, I would be asking myself what has changed.

Michael

Edited By Michael Briggs on 19/11/2020 23:18:43

Thread: Huanyang VFD help please
10/11/2020 08:53:53

Hello Jerry, the speed selection sets the internal frequency reference for the drive, it does not make the drive run. To make the drive run you energise the forward terminal and de-energise it to stop it. You shouldn't need to change the feed to SPH or SPL to stop it. I don't have a Huanyang drive to verify that, I'm just going off the drive manual. Happy that you have a working solution, Michael.

09/11/2020 10:00:02

Hello Jerry, to set up the VFD for two speed operation set PD080 to 2 (multispeed operation) that will bring the multispeed terminals into operation. The speed is then selected by terminals 5 and 6, you only need to use terminal 5 for two speed operation. If you connect it to common the drive speed will be set by PD086, with no connection to common the speed will be set by PD003.

Michael

Thread: Newton's 3rd Law
30/10/2020 19:57:47

The engine of the blower increases the kinetic energy of the intake air so the air output has more energy than the air input.

The umbrella is a distraction, the force of the air output from the blower pushes against it providing thrust. He would be better off ditching the umbrella and just pointing the blower to the rear leaving a spare hand to watch rubbish on the internet. wink 2

Thread: Help requested wiring VFD - Again!
25/09/2020 19:43:05

John, in which case Pn03 = 1 may be invalid for your drive. I have been looking at a manual for a drive (on the web) that has a small knob (potentiometer) on the front, pages 11 and 12 of that manual are exactly the same as pages 11 and 12 in your manual.

Michael

Edited By Michael Briggs on 25/09/2020 20:09:54

25/09/2020 19:17:34

Hello John, is Pn03 = 1, frequency reference from the pot on the front of the drive. Have you checked to see if there is a voltage present on the 5V IN terminal when you are trying Pn03 = 3 ?

Regards,

Michael

Edit - The digital inputs are switched to COM to energise them as you have seen on YouTube.

Edited By Michael Briggs on 25/09/2020 19:30:53

Thread: What plastic for a mower deck
05/09/2020 18:43:49

A plastic or any other lining could cause problems if moisture got trapped between the liner and the steel deck.

I have had a Hayter mower with a cast alloy deck for over 25 years or so and still it's going strong. I was warned by a friend with a similar machine that contact with lawn fertiliser can rot the alloy deck, something to avoid....

Thread: How can I fix this LCD display?
20/08/2020 20:41:06

I agree with SOD's reply, I have had this happen to me on older stuff. I would try pushing from side to side again and leave it at that. I have dismantled one or two displays like that, unfortunately never got one back together with any success. Michael

Thread: Proxon KS230 table saw motor 'kaputt'.
14/08/2020 22:04:38

My Proxxon IB/E is about 15 years old, well built and runs true, head and shoulders better than any rotary tool I have seen from Dremel.

Thread: Quality small metric spanners
28/07/2020 22:49:15

Britool aren’t as good as they used to be. I rate Stahlwille, Elora and Gedore but I haven’t bought any for some time so I don’t know how good they are today.

Michael

Thread: david king engineer from norwich
04/07/2020 21:28:26

Hello Gary, sounds like it could have been this chap Link

Thread: Installing a magnetic DRO on my VM32L
29/06/2020 20:02:00

I purchased my magnetic scales from Mdro about 6 years ago. The stainless steel strip was not self adhesive, the alloy section was supplied with a round rubber seal similar to o ring material. The final part of installation was to fit the stainless strip and seal it top and bottom with the rubber insert, I finished the assembly by sealing the ends of the scale with silicone.

Thread: Change to the Code of Conduct
22/06/2020 22:34:01

So that’s why ARC have disappeared, understandable from my point of view. If my company advertised on a forum that relied on my revenue for funding while supporting references to back door suppliers I would do the same.

Thread: Femi Hem Saw 782XL
06/06/2020 22:03:12

Same as Jason, mine came from a uk supplier with a moulded 3 pin plug fitted, just checked and as you would expect the metalwork is earthed.

Thread: VFD speed control fault
29/05/2020 17:27:54

Hello John, the VFD on board 24 vdc supply normally used to energise digital inputs is rated at 100ma. I would use it with a 78L10 voltage requlator to get the required 10 vdc supply. Regards, Michael

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