Here is a list of all the postings Rob Manley has made in our forums. Click on a thread name to jump to the thread.
Thread: Wall Storage Recommendation |
22/12/2018 18:15:33 |
I'm asking the ME collective for a recommendation as my searches haven't found anything I would trust. A casualty of my workshop move was my donated wall mounted storage unit, that contained taps, dies, reamers, screws etc, weighed a ton when fully loaded and was just about big enough. The plastic drawers have started to crack with age and being overloaded. So, I am after a suitable replacement. I would like to have around 28 drawers of 4"x3"x6" and be wall mounted. My previous one was a sheet metal unit but I'm open to suggestions. Thanks all, Rob. |
Thread: Silver Solder case hardened steel. |
09/06/2012 21:03:09 |
So, can you silver solder two steel parts together, one case hardened and one soft, without destroying the case on the first part? I am creating half of a thrust race and need to solder a shaped arm to the outer diameter. There is no other way of joining the two. Any idea? Rob. |
Thread: Expert projects |
21/04/2012 22:48:02 |
A scale car or motorcycle. It would need / have every type of engineering discipline available associated to it. Castings/sheet metal work/ casting rubber/ electronics.... May I suggest a half scale motorcycle......not biassed or anything...
Rob. |
Thread: Dangerous Practices |
15/09/2010 23:59:30 |
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15/09/2010 12:30:37 |
You sir need to clean your lathe before taking photographs - it gives the impression that people actually do stuff instead of moaning In the age of the risk assessment and 'who can i sue' it is going to become increasingly common as the ex-industrialist (because let’s face it, children from school have no experience now) becomes the normal geographic within our hobby and demands 'best practice only' to be published without criticism. We have to face it, people in our hobby are limited by materials, equipment, space, and sometimes experience. We are not taking massive cuts, swarf hitting the wall across the room etc. but can sometimes take hours boring a hole, taking minute cuts that would make a professional machinist blush because that’s what our machines can handle. A good friend of mine started in this hobby with a single book by LBSC. It contained phrases such as 'chuck it in the lathe' and other rather non-descript instructions. Now, what do you do? Throw the job at the machine? probably not. Common sense prevails and after placing the job in the chuck with plenty sticking out you move onto the next sparse instruction only to find that you have too much sticking out and the job chatters or worse, you have a prang and bend the bar. So, you move the work piece closer to the jaws and continue trial and error style. How exactly did these people survive with so little precise, distinct instructions? Maybe they didn't. Maybe that’s why 90% of people at exhibitions have white hair? Photographs within articles say more than words ever could, but should not be taken as 'the way to do it' instead should be seen as the way the author has done then due to his circumstances and equipment. A quick warning about double sided tape. My windowsill is my graveyard of projects. Where prangs, mistakes etc. go to reside for the rest of their lives. On that sill are two disks which were held together and the diameter machined. They are still stuck together after 6 years. Tis good stuff. Wear safety glasses, fit an easily removable - non frustrating machine guard if swarf is airborne, enjoy and make stuff. If it goes wrong, try and try again. (couldn't post from word using the button as I get a forbidden massage?) |
Thread: Reading Society of Model Engineers Centenary |
17/08/2010 22:48:26 |
Please visit the following page and support our 100th Year Exhibition http://www.rsme.co.uk/centenary.html If you have any questions please contact Tony Giles, who's details can be found on the contact us page. Rob. |
Thread: Making Springs |
15/08/2010 11:11:58 |
Hmm, that sounds quite a good idea. Do you think it would be possible to bend it hot and therefore get it as tight as possible? Has anyone done it using this method? Rob. |
14/08/2010 21:54:44 |
Hey all, I have to make three half scale versions of some full size springs I have. The trouble is they use large diameter wire, are fish-bellied in shape and quite tightly wound for their diameter. The large full size one can be seen below. Any ideas on how to make these would be great - the first one to come up with a sensible answer gets a free wish. ![]() The main spring is for the front suspension and the rear smaller springs are for under the seat on this: Rob. |
Thread: Douglas engine......again |
05/08/2010 16:55:36 |
Right, for anyone interested I have finished the half scale - fully working amal carb. After some digging around the internet I found that cork painted with shellac is whats used. Got some shellac but haven't done the painting yet. BUT, I couldn't resist. A friend had a 60cc lawnmower engine sitting under a bench so with a little adapter plate we tried it. IT WORKS. The choke works and it accelerates well, im really pleased (don't think I can use the word chuffed here). I still want to take some more pictures of the insides and will post them along with the descriptions to go with them asap. You can see them here: https://sites.google.com/site/halfsizedouglasmotorcycle/home/index/carburettor Rob ![]() Edited By Rob Manley on 05/08/2010 16:56:59 |
Thread: How to drill a square hole? |
21/07/2010 23:28:39 |
1/8" square is easy enough to file with a small needle file. I wouldn't even consider any other method. But as has been said another method is to half grind a bit of 1/8 tool steel into a D shaped broach and take out the corners of an 1/8 hole by planing. One day I will get around to playing with this: |
Thread: ARGUS oscillator |
19/07/2010 08:52:10 |
From the photograph it looks very well made and the soldering looks very neat too, so if this is your first go at model engineering it cannot be you first go at machining surely..... I think almost everyone made an oscillator as their first engine so welcome to the fold ![]() Be nice to see photographs of your mill engine before and when completed. Rob. |
Thread: Douglas engine......again |
11/07/2010 18:58:32 |
Right - small update - I have been concentrating on the amal carb and have just finished the float. Will be posting more pictures early this week. I machined it from the solid in two pieces and soft soldered it together as per full size. The wall thickness is 10 thou on all 3 faces. It looks great but is still too heavy despite it's thin wall thickness so doesn't float in water (don't have any spare petrol anywhere at the moment). So, im now going to use cork with a small piece of 3/32 copper pipe pushed through the middle. I have loads of synthetic corks which are the right diameter and just a bit too long which is easy to solve. The problem is I am unsure if these corks (made by supremecorq) will react with petrol over a long period. Just dipping in petrol isn't really a good enough test I dont think. Anyone know if these are suitable. |
Thread: manifold |
13/06/2010 11:34:08 |
Thread: ED Racer 'times two' |
23/05/2010 01:00:16 |
(hope this hasn't already been said but..) I really think this would make a great mini series in the magazine so that our non-internet friends could see. From how you started right through to anodizing. Really enjoyed following it :D. Rob. |
Thread: How close can I get? Indexable turning inserts.... |
15/05/2010 14:35:53 |
The reason I dont really want to do anything manual is I have 30 to do! With a chaser/indexable tip I would get a mini automated production going. Sorry fellas, the chasers i was thinking of were for the coventry die head and looks like this The nuts I am also making but BSCy taps are easy to get hold of so thats not an issue. The total error between a true 26tpi thread and 1mm is tiny (about 1thou per tooth) and the radii is out by 1thou also! so I think i would get away with this - just wanted to see what the masses thought. So, in conclusion if you need to cut a 26tpi BSCy thread - use a 1mm pitch form tool :D (But dont take my word for it) Edited By Rob Manley on 15/05/2010 14:38:19 |
15/05/2010 08:44:36 |
I have found somewhere that does american thread inserts which are the correct 60° but have either flat crests and rounded roots or the other way around which wouldn't be too awful BUT they do them in 27tpi or 24tpi and not 26 which is a little annoying... Is there anything closer? using this website for reference (I have no connection etc.) http://www.cutweltools.co.uk/home/threading-tools/indexable-threading-tools |
14/05/2010 21:03:18 |
Ok, I'm currently trying to work out if this can be done. I have been asked to produce a small batch of parts for an old motorbike which have a 5/16" BSCy thread on them for about 1-1/4". Ill be doing them on the cnc as theres too many to do by hand sensibly but have not had any luck trying to find some coventry chasers and dont really want to use a die for the obvious reasons. BSCy being quite a rare thread these days, I wondered if there was a close indexable tip about which would doo (remembering that its 60° and NOT 55°). 26tpi roughly equates to 1mm (0.97mm)pitch and there is a 1mm pitch tip available - this I believe is the closest I could get. Would this be OK to use? In real terms how much of a difference is there, I havn't looked into the radii differences but in such a small thread size would that matter. It would need to screw into a BSCy nut. Rob ![]() |
Thread: Trouble turning brass by a very inexperienced engineer |
12/05/2010 19:57:18 |
Is this facing the rod or machining the outer diameter? |
Thread: collet chuck for the lathe |
12/05/2010 19:55:49 |
Looks really good :D When I first started out I could never understand why people would spend time making machine tools but now I really enjoy it - satisfying isn't it. How is the boss held to the flange? That's going to be a really useful part of your workshop. |
Thread: Nemett Twin Engine |
27/04/2010 18:32:27 |
I dont believe the drawings for the twin were ever published as the prototype was finished just before his passing? wasnt it? R. |
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