Here is a list of all the postings Ian S C has made in our forums. Click on a thread name to jump to the thread.
Thread: Hot air and stirling engines |
19/08/2009 14:52:08 |
Oops,hi Mark,unless you'v got a spare motor,you should be able to pick up an old washing machine motor,1/4-1/3hp for $20,maybe less.Has your countershaft got screw dowm greasers,and plain bearings?Hope the shaft is ok IAN.S.C. |
Thread: Low tension coil |
18/08/2009 11:42:46 |
YOUR SPOT ON Johan,I forgot about the electronic system on the newer lighting sets.IAN.S.C |
17/08/2009 12:59:46 |
I'm not too sure of the circuit used but some of the opperators of hit and miss engines here use fluorescent light ballast coils,maybe worth a try.I'll see if I can find out more.Yours IAN.S.C. |
Thread: Clock making materials |
15/08/2009 13:15:32 |
Hi John,I'v got some 22swg florist's wire,it comes in 14" lengths,in bundles about 2"dia,its also available in larger size 18swg I think,its proberbly metric these days.Some old telephone coils have a core of iron wire.IAN.S.C. |
Thread: Logging on Problems |
15/08/2009 13:04:29 |
Odd I thought,I'v just had to sign on again,found I wasn't on the books,hope I'm on now! |
Thread: Hot air and stirling engines |
12/08/2009 12:04:50 |
Theres quite a bit to read about Barns lathes and other machines on the net,I was looking at the one down the road at the weekend and I see it has the original line shafting,but instead of having one of the belts twisted to give reverse,that belt drives a blacksmiths wall drill or a compressor.I was just thinking,Itold a guy on another site about heat fused flat belt,you could do it on the lathe ok.R.R.Fishers have the belting in Christchurch.Its not too cheap,but then again it would make an improvement. PS. Seen Minty the monkey,shes out again |
11/08/2009 13:43:41 |
Mark,your lathe could date back to about 1880! |
Thread: To Web Master |
09/08/2009 13:24:54 |
Had a couple of times when writing a reply,go to post it only to find that although I logged in to start with,i'm no longer logged in.I then have to start all over,Last time it took three goes,I'm proberbly doing something wrong,but it does annoy a bit. |
Thread: Hot air and stirling engines |
07/08/2009 13:31:25 |
The free piston engine sort of "clatters"away not like the first one that knocked the end out of the displacer cylinder.I use water cooling for most of my engines,the oldest goes back to 1990m.When I see you I'll show you how I make carbon impregnated teflon bushes for displacers. |
06/08/2009 12:21:28 |
Hi mark,yes i'v met up with Peter Lynn,I think he was working on a cryo type stirling engine,may have restored one can't remember.Also met prof John Raine,and Dr Don Clucas,Don was interested in my free piston engine as he hadn't had any success with this type.See someone at your place cycles,cycling is my sole means of transport,I cart my bits @ pieces on a trailer,so I don't go too far these days! |
Thread: Milling Machine Low Speed Torque |
05/08/2009 13:38:11 |
When I bought my mill(Rexon 400)I asked the sales man about using the three cutter 50mm face mill,and his reply was,OH about 900 rpm,and crank like h**l,I usually run a bit slower than that,and I have a home made power feed,and thats quite sedate even at its top speed.The first cutters I had,had chip breakers,but I was told much later that I should use plain tips to get a better cut.The tips I use are plain with no hole-held in with a bridge piece,when they are too warn for the mill I sharpen them on the green grit wheel,polish the edge with a diamond lap and use the on the lathe in a tool holder made from a bit of car back axle,sometimes broken bits get brazed on boring bars or other tools.IAN S C |
05/08/2009 13:37:35 |
When I bought my mill(Rexon 400)I asked the sales man about using the three cutter 50mm face mill,and his reply was,OH about 900 rpm,and crank like h**l,I usually run a bit slower than that,and I have a home made power feed,and thats quite sedate even at its top speed.The first cutters I had,had chip breakers,but I was told much later that I should use plain tips to get a better cut.The tips I use are plain with no hole-held in with a bridge piece,when they are too warn for the mill I sharpen them on the green grit wheel,polish the edge with a diamond lap and use the on the lathe in a tool holder made from a bit of car back axle,sometimes broken bits get brazed on boring bars or other tools. |
Thread: Hot air and stirling engines |
05/08/2009 13:09:52 |
For it's age it seems to me quite advanced in some of it's design,but the mandrel is quite light,the one out here has the same problem with belt slip,and the few times I'v used it I only managed 10-20 thou(.250 -.5mm),I don't think parting of would go too well.To get to Homebush,drive through Darfield,and at the end of town,on your left you will see Trinity Church,turn left and you will be on Bangor Road(there will be a sign at the corner),about 7 - 8K up the road you come to the Homebush shearing shed and you'll find another sign,follow that to the end of the straight,more signs,turn right up the drive and there you are.Or you can Google homebush Stables,and about the first thing you see is a map.IAN S C |
Thread: Ignition coils for small engines |
04/08/2009 17:37:31 |
There was a small buz box described in Model engineer a few years back,very simple,if I find it I'll tell you where it is.Ian S C. |
Thread: Hot air and stirling engines |
04/08/2009 17:20:40 |
I know of 2 other Barns lathes one at the vintage motor/rail museum at Tinwald,and the other about three doors away from me here in Darfield at a small private museum set up in the old electrions shop by my late friend Russell Williams,if your into vintage stationary engines you might have heard of him.I presume yours like his has 2 lead screws,one to the right,other to left.Saw one on the web,rather than a treadle like a sewing machine,it had a pair of cranks and a seat.The dates for Homebush are the 1st and 15th Nov,Sundays seem to be the time when we get the biggest attendance,and its hard to find days in Nov when there is not much else on ie Christchurch Show etc,we get going about 10am,I should be there around 9am maybe a bit after.IAN.S.C. |
03/08/2009 13:09:04 |
Hi Mark,looking through my stores dept(junk pile)yesterday and found three 5"dia cast iron wheels with curved spokes!The flywheel that I made is a few thou eccentric,but I think it'll be OK.What size is your lathe?The reflectors arn't very big,perhaps 5"dia.You need a convex wooden former with slightly more curve than the finnished reflector,If brass it needs annealing and when finnished Nickel plating.Aluminium is Ok.I'v fiddled around with a few gig lamps for our Museum at Homebush.We'r having 2 open days in Nov,first 2 Sundays I think,I'll put the dates up when I remember them,I'll have 2 or 3 of my hot air engines running,and I'll be in charge of running our water turbine-if there is enough water. |
Thread: Milling Machine Low Speed Torque |
02/08/2009 12:05:41 |
Hi Peter,with your indexable tips try 3-400rpm,not too deep cut and feed reasonably fast.How when the motor is running so slow is it kept cool,the fan inside isn't going fast enough. IAN S.C. |
Thread: slitting saw woes |
30/07/2009 13:02:56 |
Spose'you could put the mandrill in the 4 jaw and center it,but then again t might not be round anyway.Ian s c |
Thread: brazing/siversoldering |
24/07/2009 11:10:00 |
If you'v got oxy-propane, you can hook up a cutting torch,and cut steel too,gives a softer edge than oxy-acetylene.I had to build up a damaged gig axle with bronze filler,an the cutting torch was the only thing available,it worked well. Ian.S.C. PS,Is there a system that uses compressed air and LPG? |
24/07/2009 11:07:44 |
If you'v got oxy-propane, you can hook up a cutting torch,and cut steel too,gives a softer edge than oxy-acetylene.I had to build up a damaged gig axle with bronze filler,an the cutting torch was the only thing available,it worked well. Ian.S.C. |
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