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Member postings for martin perman

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

Thread: Machines and equipment sourcing chronology...
01/06/2020 18:48:42

Just out of curiousity what are the benefits of a rear tool post, I would have to extend my cross slide as it wouldnt be long enough and I couldnt use the power feed unless I could turn towards the tailstock.

Martin P

Edited By martin perman on 01/06/2020 18:49:18

Thread: What Did You Do Today 2020
01/06/2020 08:48:21

Nigel this **LINK** is for a 2007 Kangoo, hope it helps.

Martin P

Edited By martin perman on 01/06/2020 08:49:36

31/05/2020 22:56:08

I have started to make a foot operated sprung latch to keep our back door open during this warm session, its now on hold as I dont have any M5 countersunk screws so onto my second project and I'm making an adjustable traverse axis stop with a half inch micrometer barrel for fine adjustment on my lathe but that also came to a stop as I dont have any M5 countersunks for that either, I will ring around tomorrow to see what I can get.

Martin P

31/05/2020 08:37:11
Posted by Nigel Graham 2 on 31/05/2020 00:51:26:

Un filter perdu, a boiler still not yet mounted, and lights confirmed...


A somewhat lazy day but I cleaned the inside of the car, a wheelchair-converted Renault Kangoo, and finally replaced its broken mirror - I've booked the MoT for Wednesday. (I'd struck the mirror on an overhanging hedge-branch, losing half the glass; but enough remained, held in with lots of duct tape, to be useable.)

I remembered an "advisory" from last year (year before?) about changing or cleaning the pollen filter I never knew it had. It's not called that in the Owner's handbook, which does include things my version does not have, but of course neither is its location given!

The Internet yielded only fair to poor videos of changing the filter on the new Renault Kangoo. Still, they gave a clue as to where it might be.

Thinking about it, the ventilation system could well be clogged because it emits far more noise than hot or cold air; and in some conditions demisting necessitates using a squeegee every few minutes. This though is a modern (ish) car, so Goodness only knows where they've hidden any of the system. As a neighbour put it, it would have been designed by people who came straight from university and had never serviced a car in their lives!



The usual trick is to access the filter either via the glove box, will need removing, or under the bonnet, passenger side, you may need to remove the valance bonnet seal to remove the valance, it maybe in their.

Martin P.

Thread: Repair advice, please!
27/05/2020 21:33:08
Posted by AdrianR on 25/05/2020 14:34:05:

There is always metal stitching not sure how easy it is to buy the metalock stitches

Could be worth giving them a call.

+1 for this

Martin P

Edited By martin perman on 27/05/2020 21:54:30

Thread: Space X launch
27/05/2020 21:27:23

Launch aborted because of weather, next attempt Saturday.

Martin P

27/05/2020 20:50:12

and the space station, to the right of the moon, if you search SpaceX on you tube to can watch the launch live.

Martin P

Thread: Aircraft General Discussion
25/05/2020 13:30:57

A Lysander passed over at 13:05 heading towards Old Warden Museum, about four miles from me, so I assume it was theirs up for a test flight.

Martin P

Thread: Experimental Vibration Analysis of a WM280 Lathe
25/05/2020 13:23:34

Oops double posting

Edited By martin perman on 25/05/2020 13:24:19

25/05/2020 13:23:11

many many years ago, when the BBC computer came out I became an asssistant to a noise engineer from Lucas Acton to see if we could design and build a system to detect bearing failures in our UVA internal bore grinders which were grinding the 6mm dia bores of the fuel injector bodies, the current method was a visual check of the bores as finish deteriated as the spindle started to fail and when you had thirty machines grinding the bores a lot of work could be lost before it was detected, sensors were fitted to the spindles and the information was fed back to the BBC computer for analysis, the software was written by the engineer I assisted, we spent months running tests on brand new spindles to determine a base line and then monitoring the actual machines to give us information to say that a spindle needed to be changed, it proved a very interesting and successful exercise, when I moved onto another job it was being looked at to fit to other types of machines.

Martin P

Thread: Aircraft General Discussion
24/05/2020 19:53:33

Around 17:00 had a Spitfire/Hurricane pass well north of us heading east, it was quite high, obviously up for an air test.

Martin P

20/05/2020 13:49:55

How about Page then

Martin P

20/05/2020 13:01:14

Thats good, I'm east of Bedford so wuold have been unlikely to see it.

Martin P

20/05/2020 12:40:29
Posted by Buffer on 20/05/2020 10:55:56:

Someone is drawing smiles over Bedfordshire at the moment.20200520_103634.jpg

Which part of Bedfordshire, knowing my luck over my way. not that Ive heard anything.

Martin P

20/05/2020 12:38:30

Or Vicky

Thread: 3 phase cable for a VFD
18/05/2020 09:12:38

When I was working I worked for a company who made large industrial washing machines, side the control cabinet there are two VFD's driving large water pumps that needed to have speed control, because these machines sometimes had to go into already constructed building they came in parts big enough to go through standard doors, when I was let loose on building one of these machines I had problems with the VFD's and other control systems so I contacted our Italian masters and explained the problems, there response was have you connected both ends of the screening on the motor and VFD, answer yes, disconnect the motor end, all the issues disapeared.

Martin P

Thread: Aircraft General Discussion
18/05/2020 08:49:52
Posted by JA on 17/05/2020 23:26:59:


The tailplane anhedral is the give away. The nose seems to have grown a chin.


Depends if he has created an American Phantom, they carried a chin under the radar, the 74 sqn F4J's and FGR2's didnt.


I wondered why the skys were busy this weekend, Shuttleworth were testing a radial engined biplane yesterday most likely the Gladiator but it was two far away to be sure.

Martin P

Thread: What are you doing
04/05/2020 10:50:13
Posted by Les Jones 1 on 04/05/2020 09:56:29:

Have a look at this design for a saw table for these band saw that folds out of the way when using the bandsaw horizontally.


Thanks for that, I found some more aluminium yesterday in one of my sheds so may follow the design.

Martin P

04/05/2020 09:03:23

I decided to upgrade my horizontal band saw, I've had it for about ten years after being given it by a neighbour, it was in a bad state as it had stood outside for several years so I stripped it and got it back to order, it didnt have a length stop or a table for vertical use.

The table is just a piece of scrap 6mm plate and the length stop is made from scrap, the stop is made from a piece of bar and some Aluminium strip, I didnt have any small screws to join the two parts together so I used Gorilla glue and left them clamped together for 24hrs, yesterday I held the stop in the lathe to drill a 12mm hole through the plate, I spun the lathe up to check for vibration and to test the glue and once happy I drilled the hole, very impressed with the glue.

On the long shaft that supports the stop I marked 50mm steps up to 250mm, I dropped the blade down and measured 50mm from the blade and made a shallow hacksaw mark and so on to 250mm then highlighted the marks with permanent pen, this will allow me to cut lengths without use of the tape measure.

Martin P




Thread: Aircraft General Discussion
03/05/2020 18:16:35

Ive, just watched two helicopters cross on the same path and actually merge as one, a friend rang me last week for a chat I commented on how quiet the skys were, he said you must be joking Mildenhall airbase seems to have stepped up the number of flights, he lives in Tuddenham not far from the base.

Martin P

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