Member postings for martin perman

I agree with Jason, I'm a type 2 Diabetic and I recently had my annual review and when asked how my diet was going I got a telling off for eating to much fruit as the sugar build up in the body is still as dangerous as sugar, the only difference is that it is absorbed by the body much slower than sugar.

Martin P

I subscribe to MEW and used to get emails about the forth coming magazine but now I get notification about ME instead which I dont subscribe to.

Clive,

As John Mc suggested it could be the home switch, does the axis motor have an encoder and what is the drive is it toothed belt, I look after three axis robots and if the customer is a bit shoddy with loading parts and the robot crashes it can jump a tooth on the belt which shifts the position, it still zero's ok but it out of position by how much the belt has jumped.

Martin P

I have the mentioned saw under a different banner, it was given to me by a friend and it had stood outside for quite a while and had gone quite rusty but after stripping and rebuilding it it has become a very good saw which is put to a lot of stick, I dont have a band saw table with it but I have a band saw machine anyway. I get my blades from Machine Mart and I do use the tipped tools and other items with reasonable success, I also use their drill sets with success, as already pointed out if you get on the email list you will be notified regularly about vat free days.

Martin P

Gentlemen,

When my paternal grandfather died his wife told my Dad that the contents of the garage and workshop was for him, myself and my brother to sort and share so for several weekends we travelled to the house to split the spoils, one Saturday whilst we were enjoying a sandwich, my dads step mum came into the room with a shammy leather pouch and box and asked him what she should do with them, dad took them and opened the leather pouch and found himself looking at a Webley Officers Revolver and in the box the bullets, dad was off down the local police station as fast as he could get there, he was totally unaware they had even existed, he came back from the police station a much happier man

My wife and I have only sorted our wills in the last eighteen months and they basically state who ever is left does what ever they wish and when that person dies it all goes to our daughter who is fully aware of what I have as she helps me take my stationary engines to rally's and she is also fully aware of their value.

Martin Perman

Edited By martin perman on 23/02/2014 20:17:14

roger,

Welll done, just a shame about the release and start, lets hope you dont forget.

Martin P

the problem with helicoil sets is they are expensive and you only get a set for one thread, I bought an M6 kit and used it once, Plugging and re drilling is the best method.

Martin P

I'v just dug out an electrical drawing of one of my employers Industrial washing machines, we use a Siemens 420 inverter to drive a 7.5Kw pump, the reason we use an inverter is so that we dont expect the pump to go from 0 bar to 4 bar in one instance, we ramp the pump up slowly plus depending whatever the customer wants we can reduce the working pressure by slowing the pump down. We also have an extractor fan than runs at various speeds so we use a 420 .75Kw inverter to run that. The EM stop's is powered by 24 volts DC through a safety relay which when the relay is activated pulls in a contactor on the incoming supply, if an EM stop is actived the relay drops out disengaging the supply to the inverter. The safety relay also supplies a signal to the machine PLC so that an alarm can be generated.

Martin P

Roger

Jo has just reminded me that the EM stop must be inserted in the incoming supply but not directly, its needs to operate a contactor which carries the supply to the inverter so that if the stop is pressed it cannot just reset incase the inverter starts the motor immediately it needs a switch to reinstate the contactor once the problem is sorted, you can use another pair of contacts on the EM stop to inform the inverter the stop has been pressed.

Martin P

Roger,

I have a Siemens 420 inverter for my lathe, we use these inverters on equipment at work, if you program the unit to work with a remote my inverter switches off the buttons on itself mainly to stop incorrect use of the wrong buttons.

Martin P

Chris,

As its hydraulic I assume it must have a pressure relief valve, is this stuck open because of a broken spring or dirt holding the valve open, you would still get oil from the return but no pressure to drive the system.

Martin P

Jason,

Thank you, my interest is born from the fact that I restore and show full size Stationary engines and a friend has a Galloway he has restored.

Martin P

Jason,

May I ask what scale your Galloway is and which HP model it depicts.

Martin P

In the early seventies I was fortunate to go into the sixth form at comprehensive school, at the end of that year we were all brought together and it was announced that out of our year of twenty one of us was going to university and that it was a honour for the school and we were all pleased for the lad, today anybody can go to university and obtain degree's in the most ludicrous of subjects and then think the world owes them a living, with the exception of a few I find it is just another excuse to waste a few more years and not to go out into the real world and earn a living.

Going to university does not have the honour that was attached to it in my youth and its not helped by businesses wanting a broom pusher to have a degree for a job.

Martin P

I was fortunate as a young lad as my Father trained as an Electrical Draughsman then he went into Mechanical engineering Draughsman, his Father was a well known Model Engineer and by the time I was five I not only new what a lathe was but Grandad had taught my brother and myself how to use one, the only thing we couldnt do was treddle the lathe as we were not big enough, at school we had a fully kitted metal working shop and Tech drawing department which we both enjoyed and did well in especially in CSE and GCSE, when the oppertunity for both of us to take apprenticeships in engineering we jumped at it, I went first as the eldest and a year later my brother joined, the company was Lucas CAV, the Sudbury Suffolk plant where we worked manufactured diesel filters and fuel injectors of all shapes and sizes, we both joined as Technician apprentices and had four years each in the Training Dept and I did five years at Technical College, where I finished with a Full Technical Certificate in Mechanical Engineering, and my brother did four, my fifth year was a course in Business management, the apprenticeship took us through every department in the company and in the third year we had to make a guided decision as to where we would like to work I went into the Works Engineering Dept as an apprentice Machine Tool Fitter and my Brother went into Production Engineering in the next sixteen years I worked my way up the ladder repairing machine tools of all description, I was also sent on electrical and electronic courses which my collegues could not understand, I then put the tools down and took the job of a Reliability Engineer which involed determining how to increase the the life of the machines between overhauls by looking at trends of failure of components etc I then got asked if I'd be interested in becoming a Works Engineering Foreman which I took on until the company announced redundancy on the Dept, I took voluntarily redundancy and joined a Machine Agency and I've been in Service Engineering ever since working with Automation, Industrial Robots mostly in Car Plants, and now I work with Industrial Washing machines, form small dish washer sized machines to machines big enough to put my Vauxhall Vivaro Van inside. I've worked with Hydraulics, Pneumatics, Electrical/Electronic, pumps all types of machine tools and equipment and I think I can call myself a practical Engineer.

Martin P

I and my brother have recently had to line the inter connecting wall between my mums house and her neighbours so he cant hear her telly, at the age of ninety she will not accept she is deaf, any way we lined the wall with noise absorbtion tiles, soft foam with plenty of voids, which were approx 12 inch square by 40mm thick, her neighbour reports he can no longer hear the telly even though mother still has the volume up high, our sister found the tiles on the internet.**LINK** £37 for24

Martin P

Edited By martin perman on 26/01/2014 16:49:52

Godfrey,

I have a CL500 that I intend to convert, I do know that there is a direct three phase equivilant for my lathe, same make, size etc which I need to purchase, I have a Seimens 420 inverter 2hp rated, acquired from work from a machine that was beyond repair when it fell off the forklift that was moving it, I have tested it and it works well.

I would say that as long as the motor and inverter are matched for horsepower or the inverter is rated higher you shouldnt have a problem, on mine you can dial in the motor characteristics to suit your motor i.e amps, revs, horse power etc

I like you want to get away from belt changing and I also want to be able to thread cut slower as the slowest at the moment is to fast.

Martin P

Edited By martin perman on 26/01/2014 11:07:28

How far have some of you travelled, I checked out train tickets for four of us to travel from Sandy, Bedfordshire to Alexandra Palace return on Sunday and it cost us £6.00 each, getting in was dearer £9.00 but a lovely cheap day.

Martin P

went today with several friends and enjoyed a most excellent show, one of the best in the uk in one very interesting building, managed to get items on my list and saw a picture of my grandfathers boat on Victoria Pond which made my day.

Martin P

Gentlemen,

Where I served my Apprenticeship and worked for sixteen years my father was an engineering draughtman, he was given a university apprentice to mentor during him term break, my father was given a special bolt to draw as it had snapped and needed remaking, the bolt had been taped together in a tee shape so as not to loose the parts, my father decided the apprentice could do this as a project and when the lad had finished the drawing he asked my father to check his work, what my father found was a perfect drawing with everything in place to make the bolt apart from the fact that it had been drawn exactly as the lad had been given it, taped together in the shape of a tee. He was known throughout the factory as being so clever he was thick as he couldnt see the wood for the tree's.

Martin P