Here is a list of all the postings Tony Jeffree has made in our forums. Click on a thread name to jump to the thread.
Thread: What Did You Do Today (2017) |
23/08/2017 17:32:59 |
Posted by Neil Wyatt on 23/08/2017 14:37:53:
Took my daughter to Ikea yesterday to stock up on university essentials. Mom has met another lady who told how her son didn't even bother unpacking his toastie machine when he saw his flatmates had six lined up already... but I'm still despairing how we will fit everything into the car. I seem to remember I had two large bags plus my homemade hifi... When I went to Uni, I was driving a Heinkel bubblecar, and all of my worldly goods, including the hi fi, fitted in it with room to spare. I think the largest load it ever carried was myself, 3 (student) passengers, and a guitar. I have to say that the oversteer, which was always present on these machines but was normally manageable, became somewhat alarming! Engineering note: the primary cause of the oversteer on the Heinkel and its RHD variant, the Trojan, was the rubber mountings for the engine/trailing arm/rear wheel assembly. There were 3 mounting points in a triangle - one at the top and one either side at the bottom. These were designed to be flexible to absorb some of the vibration from the 200cc single pot engine, but also allowed the back wheel to be flexed off-line when cornering. Normally you corrected for this automatically, so while hacking round a left-hander (for example), the steering wheel ended up being rotated significantly right of centre, and you didn't notice. A bit like the way speedway motorbike riders take a left hand corner with the back wheel hung out and the handlebars turned approx. at right angles to the right. All good fun! |
23/08/2017 17:19:45 |
Posted by roy entwistle on 23/08/2017 14:36:51:
I believe common salt is Sodium Chloride whereas Sodium Chlorate is a weed killer Roy That is indeed correct - sodium chlorate is also a poison. So don't put sodium chlorate on yer fish & chips - or you will likely find that you have had your chips. Edited By Tony Jeffree on 23/08/2017 17:21:39 |
22/08/2017 13:05:56 |
Posted by NJH on 22/08/2017 12:49:03:
........One of the joys of living out in the wilds of Mull is that when the plumbing fails, you have to fix it yourself. Ahhghhhhh Tony ! That is certainly one job that I would be very pleased to pay someone to do! I guess that once started, you had to finish as, I assume, until then you couldn't have a shower! Norman I have to say I wouldn't choose to do it if there was a better option, but with guests appearing in the cottages later today, and our house dependent on the same septic tank, there wasn't a lot of option! At least now I have a pretty good idea where the problem is likely to occur! |
22/08/2017 13:04:07 |
Posted by Bazyle on 22/08/2017 12:42:26:
If you are not on mains drainage it is worth putting in a fat trap in the kitchen outlet. That is a good plan - I will investigate. |
22/08/2017 12:11:46 |
One of the joys of living out in the wilds of Mull is that when the plumbing fails, you have to fix it yourself. The main drainage from our holiday cottages was backed up - much bubbling in the shower when you flushed the loo, which doesn't bode well - so on with the grubby jeans & gather a few tools; a screwdriver to open the inspection hatches, a hose pipe, a set of drain rods (bought after the last time this happened), and a submersible pump. The inspection chamber next to the septic tank proved to be full - so the blockage was in the short (2 foot) pipe between the chamber and the tank. So in with the pump to empty out the inspection chamber (plus all the pipework and chambers backed up behind it). Then attack the problem with the drain rods with the 4" rubber disc on the end. Non-trivial to get the rod into the hole to start with - the exit pipe is about 3' down into the inspection chamber, so not the best angle to go at. Much pushing and shoving and eventually the drain rod/plunger goes round the bend and I managed to get a good pumping action going that seemed to improve matters. Retrieved the plunger and shoved it down the vertical breather pipe for the septic tank - the exit pipe from the inspection chamber joins this vertical pipe about 3' down - and met significant resistance. Gave it a bit of welly and cleared the blockage - turned out to be a large "fat berg" that had formed where the drain feeds into the tank. Very nasty. All flowing freely now... ...and I am much refreshed after a long sh- sh- shower. |
20/08/2017 10:23:45 |
Posted by Hopper on 19/08/2017 23:54:44:
Posted by Roderick Jenkins on 19/08/2017 19:21:24:
Nicely done Hopper. Only one scrapped plate when I did it Rod LOL, I've already plans in place involving filling "bad" holes with steel blanking pins loctited in place and redrilling -- just in case I get to that stage. Edited By Hopper on 19/08/2017 23:55:11 Edited By Hopper on 19/08/2017 23:55:47 I used brass plates and soldered in brass blanking pins
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19/08/2017 18:36:14 |
Posted by Graeme W on 19/08/2017 15:47:10:
Ah, I remember so well painstakingly drilling all those holes in the GHT division plates. The end result is worth the effort though and very satisfying. That said, mine has sat on the workshop shelf for about four years since I built a division master and then a Steve ward indexer. Hopper, considering that is a fabrication, you have done and excellent job re creating the form of the original castings.
My own ventures into building dividing heads resulted in this design: http://www.jeffree.co.uk/pages/divheadmk2.html A blatant crib of the GHT approach, but using 30:1 ratio worm wheels to give "only" 1/100th of a degree of resolution, and small enough to be used on a Taig lathe cross-slide with the spindle at centre height. My use of it as a manual dividing head ended once I had drilled all the division plates; once I had built the stepper-motor attachment, there was never a good reason to use a manual dividing head from that point on. I did attempt to cut a gear wheel using manual division after I had finished all the plates, but inevitably, I lost concentration and cut a "thin" tooth. At that point I realised that life was just way to short to do manual division. |
19/08/2017 14:05:05 |
This is exactly why I built my DivisionMaster. |
14/08/2017 10:42:13 |
Not exactly a model, or engineering, but it does involve a workshop. I've been working on a 12' rowing boat kit for the last few weeks & making good progress: The bottom is glassesd and coated in resin, ready for sanding, filling, and painting. Still work to do on the inside - more pics when I turn it over again. |
04/08/2017 17:33:54 |
Posted by Neil Wyatt on 04/08/2017 16:49:33:
Spilt cyano on my leg. Breaking up into a major hole in my jeans and minor burn - it gets hot QUICK! Neil Very nasty. Cyano seems to react badly on contact with some plastics - for example the plastic used in fleeces. Gets very hot & emits toxic smoke. |
27/07/2017 20:10:56 |
Guilty as charged (hic) |
27/07/2017 17:47:44 |
Hi Norman Yes I moved to the Isle of Mull 3 years ago and am still working on reestablishing my workshop. The lathe is back on its stand but there is a way to go before I start making chips in serious quantities. Also attempting to build a small rowing boat which occupies a bit of time. Hopefully normal metalworking service will be resumed before too long... |
27/07/2017 14:35:41 |
Posted by Windy on 26/07/2017 11:00:33:
What have I been missing used to listen to the Archers for years has it got an X certificate now. The X stands for Xcruciating... |
Thread: Split Infinitives |
06/06/2017 14:16:31 |
Posted by Gordon W on 06/06/2017 09:19:21:
That's a split fundament. Whatever it is, it is a pain in the a$$ |
05/06/2017 23:37:50 |
It is vitally important to get you split your infinitives welded up before further damage is caused. One minute it is just a split infinitive. And the next minute, you will be starting a sentence with a conjunction...and it is down hill from there. For a complete treatise on common grammar errors (in a humorous vein, of course), see: http://www.creativeteachingsite.com/humorgrammar.htm |
Thread: Just in case you run out of abrasive cutting discs... |
16/05/2017 22:36:07 |
Posted by vintagengineer on 16/05/2017 22:21:32:
I used to work on large printing machines and the paper used to cut through tool steel!
Doesn't surprise me - many papers are finished using minerals such as calcium carbonate or clay, and so will be abrasive. |
16/05/2017 22:17:54 |
Posted by daveb on 16/05/2017 22:09:54:
Watch your finger with this, a paper cut really hurts. Indeed...and the paper disc will cut skin far more easily than a conventional abrasive cutting disc. |
Thread: Cyanoacrylate and Quicklime |
16/05/2017 21:28:31 |
Posted by Neil Wyatt on 15/05/2017 08:20:39:
Posted by mark smith 20 on 13/05/2017 20:26:31:
I found a patent for a bio-adhesive composition and it says calcium oxide can be added as a `heat dispersant`, so its any ones guess what happens, other than as a filler. superglue can react with many things. Ever drop any on your cloths. I had a minor burn on my leg after spilling a load onto my jeans . I have heard that it can set cotton on fire. It has an exothermic reaction with polyester fabrics too. |
Thread: Just in case you run out of abrasive cutting discs... |
16/05/2017 18:41:29 |
Posted by Ketan Swali on 16/05/2017 18:19:23:
Tony, Now that you are living out in the sticks, I guess you have to improvise. Ketan at ARC. We do indeed - we can't just pop down to Be and Queue anymore... |
16/05/2017 18:05:02 |
Thanks!
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