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: Workshop temperature - cold |
04/12/2020 19:54:50 |
Posted by not done it yet on 04/12/2020 19:40:56:
Agricultural vehicles run on diesel - nobody calls it gas oil - but they order diesel, not DERV. DERV is taxed as it is for Diesel-Engined Road Vehicles (what the abbreviation stands for and gives a clue of why it is taxed so heavily). Or Duty Exempt Road Vehicle. Martin P |
Thread: Chuck faceplate Clarke for lathes |
29/11/2020 21:58:43 |
Posted by John Forster 1 on 29/11/2020 18:44:10:
Hi Guys, This is the third attempt at posting this so if it come up three times I apologise. I have a CL500 M lathe and want to replace the 3 and 4 jaw chucks with a collet chuck. does anyone know if Clarke do one? or can anyone tell me the PCD of the boltholes that hold the chucks to the spindle flange? Also doe anyone know if Clarke do a QCTP for the said lathe? I bought an online one for a mini lathe Regards. Any info appreciated, especially if MG has a more detailed diagram of item to in the head stock exploded view I have a CL500M, Clarke dont have a collet chuck but there is a taper in the spindle nose so I bought an ER collet chuck with the same taper but there is a limitation, you have to make a draw bar which means short jobs. Martin P
Edited By martin perman on 29/11/2020 21:59:29 |
Thread: The Workshop Progress Thread 2020 |
29/11/2020 17:43:53 |
I'm not making anything like what preceeds my post but I am making a punch and die set to punch a a small hole into a piece of 0.6mm thin spring steel to make a suspension spring for one of my clocks. The die consists of two off 6mm thick by 40mm wide bright mild steel plates that are bolted together to hold the spring strip in place and today I have machined in both pieces a 2mm wide x 4.03mm long slot through both plates. Some of you may think "and" well I've never used such a small end mill and I didnt know whether my mills maximum speed would be fast enough for the cutter. I first drilled two holes 1.9mm dia, 2mm between centres then very carefully, my machine by the way is a large round column mill/drill, took my cutter into the first hole to a depth of 0,5mm and traversed across to the next hole and then down 0.5mm again until I finally started to break into the second plate, I then unbolted the first plate and carried out the same process until a slot appeared in the second plate. I dont have any power feed so it was very slowly fed by hand and when I had finished both slots I decided to start breathing again. For what ever reason I decided to but a pair of 2mm dia carbide end mills and I must say I'm pleased with the results and finish. Just out of curiosity what spindle speed should these cutters rotate at, my Mills maximum speed is just short of 3000 rpm. Martin P Edited By martin perman on 29/11/2020 17:45:54 Spelling mistooks Edited By martin perman on 29/11/2020 17:49:53 |
Thread: Workshop temperature - cold |
29/11/2020 17:14:18 |
I'm my own worst enemy when it comes to the cold I seem to be able to tolerate it, today I've spent several hours in my garage, with the door shut, with an old fleece top and a very thin body warmer on but I can end up very cold without noticing it, because the NHS makes my footware I'm restricted to what I can wear on my feet so fleece working boots etc are a no no but I've got soft rubber mats that I stand on, not that I can feel the ground I stand on or temperature which I learnt quickly when I stepped into a scalding hot bath a few years ago and burnt mt feet even though I couldnt feel it. I do have a heater in the garage but it doesnt chuck out much and I tend not to turn it on. Martin P |
Thread: Electric vehicles |
23/11/2020 21:40:44 |
Posted by Andrew Firman on 23/11/2020 21:23:00:
What are peoples’ views on the ability of electric cars to tow trailers and caravans? Will it be possible? I have a friend who has a Mitsubishi Hybrid 4 x 4 who tows a caravan and a museum dispay to rally's and he says when towing the battery side goes out the window very quickly. I use a 4 x 4 to tow my trailer of engines to rallys and can tow 1.5 tons behind me, I know Tesla's can tow but how much I dont know and I doubt the batteries would last and its a totally impractical vehicle if only for the low ground clearance on fields that I attend. The other issue I would have is attending the Dorset Steam Fair for instance 155 miles for me and when I get there there is no where in a field to charge so it sits for six days nad I've then got to get home again, My 2kw generator has difficulties charging my mobility scooter batteries every day so I've no chance. Martin P |
22/11/2020 21:23:22 |
Several years ago I had some tree's down at the front of the house and the drive rebuilt, the builder had a mini digger on site to pull out the tree roots, while he was clearing the ground around the tree the digger driver spotted a yellow pipe, my gas supply, he stopped and called the builder to come and spot for him and whilst he waited he took the digger 20 feet further away and put the bucket in the ground and came up with a now busted gas pipe, I went indoors and turned the electric off and got my wife outside and phoned the gasboard and within an hour had the advanced guard who cleared the houses either side and checked our lofts, we all stood waiting the repair team to turn up when the village gossip came out of her house and walking towards us light a cigarette, the gas man shouted to her to put it out with no response so he ran towards her screaming all sorts of expletives until she took the hint. The repair team turned up and I asked where do you turn the supply off and was told there are no off valves and the repair was done live with a form of induction heater coil, the leak cost £800 to repair. Martin P |
Thread: Another engineering masterclass |
22/11/2020 19:18:37 |
Alan Millyard is a clever fella, onof his projects was to fit a V10 from a Viper car, he is on the Motorcycle show series as well. Martin P |
Thread: Spares stock... |
20/11/2020 16:26:53 |
Tilt Edited By martin perman on 20/11/2020 16:28:15 |
20/11/2020 16:26:52 |
I don't keep any spares for my machines, belts, bearings and other consumables can be obtained from local sources, I keep a stock of materials and top up as I use it. Martin P
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Thread: Clearing spark plug thread |
20/11/2020 13:31:04 |
Tilt
Edited By martin perman on 20/11/2020 13:32:17 |
20/11/2020 13:30:00 |
Posted by Clive Brown 1 on 19/11/2020 14:59:31:
Would an 18mm plug thread chaser @ £6 from Machine Mart be within budget? Or a wire shaped like a hairpin with outwardly bent sharpened points and lots of patience. Edited By Clive Brown 1 on 19/11/2020 14:59:47 I'm an engineer Martin P |
Thread: Electric vehicles |
19/11/2020 09:07:55 |
Maybe I've missed something here but there is no real mention of cost, my wife and I are retired and are comfortable financially etc but there is no way I could justify the cost of an electric car, £30,000 and above seems to be the price of cars and none are big enought to get one let alone two mobility scooters in, then there is the degredation of batteries over time and the cost of replacement battery packs for the vehicles. I wouldnt buy second hand because of battery life as there is no way that garages could know how much life is left accurately enough to say there are no issues. You could buy a car showing a 100% and within weeks of buying that could drop to say 85% or even die. Martin P |
18/11/2020 22:01:03 |
I'm curious about one thing, what happens to us that live in the sticks and wouldnt know what a bus was if one passed us. Martin P |
18/11/2020 21:01:42 |
I was thinking about an electric vehicle to replace my diesel but after reading the above a new diesel should see my wife and I out and give our daughter a low mileage vehicle for her to use. Martin P
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Thread: Plans for updating the archaic forum? |
11/11/2020 10:51:46 |
Gentlemen, Why are so many of us discussing this, we dont own this site we just use it, the concensus of opinion is it does what we want it to do and most of us either dont use or even notice the "imperfections". You may have also noticed that apart from Dave the other Moderators have not commented because they know what the owners, ME, views are from past chats, we all know from time to time one of Me's staff pops up so we know she reads these post and she knows that nothing will change so why make a comment. Martin P |
Thread: Which edge finder? |
07/11/2020 09:49:20 |
I use a piece of 6mm silver steel rod and a light, I find it simple, cheap, quick and accurate, I bought a wobbler edge finder and couldnt get on with it. Martin P |
Thread: Good idea for a scratch built engine |
06/11/2020 20:26:04 |
Just watched all three, excellent and subscribed, Martin P |
Thread: New Covid Rules |
01/11/2020 17:58:01 |
I went to a customer with their medication on Friday, I usually go once a week but this was the first time in over a month, the lady of the house answered the door and I asked her how she was, she said we are better thanks and she told me they had had Covid, her husband ended up in hospital as he is bed bound and became very ill, the lady told me they go nowhere, dont have a car and food is delivered outside their house, turns out the Carer who comes to see her husband every day had it and she is kitted out with all the PPE etc. Martin P |
Thread: Thank you Arceuro |
28/10/2020 17:59:08 |
Posted by Sam Longley 1 on 28/10/2020 13:09:53:
Posted by Sam Longley 1 on 28/10/2020 13:06:43:
I often see these posts & wonder why. If my wife walks into a shop she expects to be served quickly, Unless there is a queue. So why would it not be the same for expecting a supplier to get the goods off to a customer fairly quickly. Can one tell me the difference? The real heros in the story are the couriers who are able to collect the goods from the supplier & get the goods to the customer toot suite. It is not the supplier that needs congratulating for doing what one would expect from any shop is it? If , however, the supplier offers advice, or good returns service etc then by all means they deserve praise. Now tell us who carried the goods & congratulate them-- Yet you do not-- Why?
To answer your question regarding couriers, I dont say which courier delivers anything that I receive because I cannot fault any company, I buy from Ebay, Amazon and many tooling companies including Arceuro and can honestly say that I get stuff delivered quickly and in good order and usually within three days of placing the order so anything that arrives within two days of the company getting the order needs a mention as in the case of Arceuro. What does amaze me is the number of courier companies that get mentioned on here who have lost it, broken it or take for ever to deliver it all call at my house with packages from all over the uk within what I consider a good fast service, so I cannot find fault with any, they are as good as each other. Martin P |
27/10/2020 09:11:19 |
Gentlemen, Last Saturday I was in the process of making a die when I found that I didnt have the correct size End mills so work cam to a halt, in the afternoon I placed an order with Arceuro for two 2mm Slot drills and some parallels and at 9:00 this morning the postman handed me the goods, it doesnt get any better, excellent service. Thank you Ketan. Martin P |
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