Here is a list of all the postings Stuart Munro 1 has made in our forums. Click on a thread name to jump to the thread.
|Thread: Silver Solder|
I mostly work in brass and use Silverflo 55 which I source from GLR Kennions. They provide appropriate flux also.
Low melting point (for a silver solder) so easy to work with.
|Thread: The future is Tiny|
V8eng, very interesting. On that basis will we come to regret the technical solution to our current (no pun intended) problem?
Perhaps we should all work from home, from houses without light or heat, sleeping as soon as it gets dark. We should eat only what we grow in our gardens and forget all about tech goods which we have hitherto imported at great cost to the planet. Forget about engineering (at last, as an ex accountant I can point the blame at the engineers instead of just envying their skills)
Or should we admit that the real problem is overpopulation.
Another useless fact that I recall reading - the pollution caused by horses in London before the car, made living there almost unbearable. That is unless you were too poor to live anywhere else!
I was curious when I read about the 'pollution effect' of New Zealand lamb being less than for Welsh Lamb. Apparently giant container ships with chilled containers actually burn a lot less fuel per kg of lamb shipped than lorries. Not sure that I ever fully believed the example but it does point out that some peoples simplistic view of the 'greenness' of different transport systems is often wrong.
Now if the future is tiny, tiny portions of whatever meat is probably greener, but is it like the old joke, you don't live any longer - it just seems so.
|Thread: Small saw. Proxxon or something else|
I actually have a Sjherline lathe - an interesting project.
Roger - thanks. I knew John wanted to cut steel but the discussion seemed to have widened. I repeat the plea for someone to build what i want - but so far my cries for someone to make my dreamed of chocolate bar; non-alcoholic drink...have gone on def ears.
I think that I already mentioned that I cut aluminium and brass sheet with sheers then file to a smooth straight edge - like your example above. My one refinement is testament to my lack of skill, as my cuts are rough I cut 1mm outside of my score and place the sheet in a vice with a length of angle iron each side, then file down to the score. Pretty good finish.
But I would prefer a machine to do this; my wood table saw (Proxxon FET) cuts very accurately, straight and smooth but imho only works with wood. If there were a table saw that did to non ferrous metals what the FET does to wood...
I guess its machine up or skill up and as a retiree who has never dirtied his hands with engineering before, skilling up seems the greater challenge.
Cutting sheet metal accurately is such a fundamental component of model engineering that I've enjoyed this instructional debate. If only some enterprising manufacturer would pay heed and design something that works - I'm sure many of us would buy it.
John and myself to start with.
Now the (long retired) corporate/financial analysts in me comes out. Jim Byrnes in Florida and Sherline in Australia were modellers who decided that the machines they wanted were not being made...the rest is history. Anyone out there with a business plan?
Just dreaming, as I do of owning a real lathe and mill. Alas, my /Sherlines are all I have room for.
ps - I believe Millhill prices are inclusive of VAT - but not 100% certain so anyone looking to buy please check.
I spoke to Kevin at Mill Hill late last year and learnt that their policy is to buy in stock then keep prices stable until the next stock purchase, when prevailing exchange rates will impact the price.
Looking at the post Brexit exchange rates we saw the pound falling significantly from about $1.50 early 2016 to $1.30 after the referendum. There was some recovery and by early 2018 it had recovered to $1.45 but slid again through the year to $1.25 by December hovering around this level until a recovery as a 'deal' looked likely. Now about $1.35
Its quite possible that your purchase was of stock bought early 2018, and now were looking at stock bought late last year. A large chunk of the price change.
Looking up item 1030 - the 4 jaw chuck - on eBay the delivered price - tax and postage paid - is estimated at about $225 - about £160 or 26% price hike. Its part of the reason that I check eBay imports from the US.
Yup - they have gone up in price but the financial analyst in me (my former occupation!) would love to see what has happened to mini mill prices. Might do that.
I'm not on commission - Sherlines are not for everyone but is someone avoids them because they are seen as difficult to get hold of, I think that's a pity.
So one final point, just went online and checked Mill Hill supplies, they have full current pricelist. From experience their prices are usually very similar to the 'landed' cost of buying from DPP but if mill hill don't have an item in stock, they may take a month or so until they get it. this is when I've gone to DPP/eBay because it really is quick.
Both Kevin and DPP are very helpful.
Some observations on pro's and cons of Shelines:
1/ They are very accurate.
2/ The are easy to pick up and pack away. i have predrilled and tapped bolt holes in my steel surfaced workbench; 4 screws and a hex key and they are free.
3/There are plenty of Sherline extras.
4/ They have plenty of power for Brass and Aluminium.
1/ They are expensive
2/ Whilst you can get metric versions, the bolts that hold them together and all fixings are imperial. Can be irritating!
3/ They can cut steel but it takes time.
4/ They are small.
5/ The shafts are MT1 - try buying 3rd party boring heads etc for MT1 - you have to go the Sherline rout.
Depends on what you want them for I guess, but I've never found a problem with getting bits for them.
I have manual Sherline lathe and mill, both bought from Mill Hill Supplies of Basildon Essex (Kevin). MH are the main UK importers. I'm a novice engineer but researched long and hard to find machines that are compact and competent - which as I mostly machine brass and aluminium they are.
Importing from the USA is not actually a hassle nor does it take a long time. Simply contact DPP engineering in California - Sherline's main global exporter. You can get them at firstname.lastname@example.org. They will then list a part on eBay where you can purchase it using the eBay international delivery system. This reduces shipping costs because DPP ship it to eBay in the USA who ship it with containerload of stuff to the UK, from where it is delivered to you. The price on eBay estimates all taxes which are confirmed on purchase. Nice and simple.
DPP tend to under promise on delivery, bought DRO for both machines and they arrived within 7-10 days. Bought a rotary table with similar experience.
People often misunderstand US pricing; the price on the label, online or in shops, is without tax. Tax varies by state so this has become the normal way to quote. So the goods are shipped free of US tax, but of course you pay import duties and VAT etc in the UK. eBay manages this all seamlessly.
|Thread: Small saw. Proxxon or something else|
pps - now that I know that it has blades to cut Brass sheet and aluminium sheet it may become a realistic option as a multi material saw. Off to se the minister of home finance.
p.s This is why I'm attracted to the Byrnes Table Saw - by all accounts the Rolls Royce of wood modellers table saws but coming in a £550 - £600 landed in the UK.....
Joihn, I have to agree re Proxxon. I have one of the FET table saws discussed in this thread; its generally very good and can be adjusted to about 0.1mm BUT the fence appears to be about 0.5mm out along its length but the BLADE is what is not at 90 degrees to the table. I make do by setting the fence parallel to the blade but for a tool of this price this should not happen.
I've gone to sheers for thin aly and brass, don't have a need to sheer steel sheet. With the aly and brass I then use a panel hammer to flatten it and put it into a vice betwen two bits of iron angle and file the edge the last half mil. Works for me.
Jim came back promptly confirming that his saw (with slitting blade) will cut thin sheets of aluminium and brass but not steel.
John, and everyone else,
This is a real problem for beginners at engineering like me. Cutting strips of material be it brass, steel or aluminium is essential yet challenging. So I too have gone through all the permutations. A Floridian called Jim Byrnes makes what is probably the best wood modellers table saw on the planet (certainly not the best beer on the planet if he hails from the USA! to misquote an old advert). It comes with a range of optional blades which I suspect but would need to confirm, include metal cutting blades.
2 problems - its hyper expensive top import, like twice the cost of a Proxxon FET - and I'm not sure it cuts metal, just suspect it does, but will enquire.
If only there were a UK importer, I guess bulk buying would enable lower shipping costs which are half of the UK total for a 1 off!
Try as I might I can't find 32tpi blades for other similar mitre saws and think only the Nobex make a 630mm saw so only that saw can take the 32tpi blade.
There seem to be a range of sized from 550 upwards, one of the generic 550mm saws on Amazon claims to cut aluminium so that sounds similar to mine, but its a courser TPI.
Tough choics; Go for the £150 Nobex 630mm and you can cut mild steel but might blunt the blade after a few cuts (I rarely cut other than non ferrous with it), or try a £50 saw that claims to cut aluminium.
There is another tool, the Proxxon Mitre Saw KGS 80. I also have one of these and its great for cutting lengths of various metals. Tough little saw
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