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I Forge Iron

Alan Evans

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About Alan Evans

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    Stroud, Gloucestershire, UK

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  1. May I suggest you rotate the economiser around 90˚ so that the actuator arm is way from the bottles? When the torch is alight it may be a bit too easy to direct the flame down onto the gauges and pipes when you hook it on to shut down. On mine I kept it all clear to ensure that when lighting and extinguishing it is easiest to direct the torch nozzle away from any object that might have a gas seep.... Alan
  2. HP is HP whatever the power source as far as I know. A 5 hp combustion engine motor would be the same as a 5hp electric motor. 5hp electric motor would be rated at around 3.75kW if that is what you were thinking of. KW rating is around 3/4 of the hp rating number for number. 1kW = 1.341hp 1hp = 0.7457kW FWIW my 30 tonne double acting press has a a two stage pump and is rated at 50mm(2”)/sec up and 75mm(3”) /sec down It uses a 2.25kW (3hp) motor to achieve that. It has a 150mm (6”) diameter piston Alan
  3. The speed of the stroke is determined by the volume of oil the pump can deliver at the required pressure, not by the slave cylinder. I am not sure of your 2Way / 4way cylinder description, over here that defines the type of control valve...In the UK the cylinders we call single or double acting? I have a 30 tonne double acting press (hydraulic return) which works well for punching hot metal having a stripper plate which the 15 tonne return power uses to pull the punch and drift back out. It has a two stage pump which gives you a fast approach speed with a 5 tonne push and then kicks
  4. Grand looking machines, are they running on steam or converted to air? There does not appear to be any lagging on the delivery pipes... Best bet would be to ask John Nicholson of Massey in UK. http://www.masseyforging.com/home.htm The pressure of steam or air acting on the diameter of the piston are the starting point, but only give you the same result as for a hydraulic press. Crucially the length of stroke it accelerates through will have the greatest effect on the effectiveness of the hammer. Perhaps next best bet is to look at the Massey hammer brochure which shows that th
  5. I do most of my drawing (and writing) with a Rotring Fine nib Art Pen...lovely tool. Rotring made the Rapidograph fixed width technical drawing pens I used to use on Permatrace film and paper on the drawing board. Coincidently, I have just this day taken delivery of a new Art Pen from Amazon. My old favourite has logged up over 30 odd years of daily use and is still going strong...I remember having it in 1988 when Buck Rogers set off...I remember that year because I called Snap! to David Petersen's identical Art Pen when he and I attended one of our preliminary meetings with the Welsh Art
  6. It is almost surrounded by the formerly heavily industrialised Black Country boroughs to the west of Birmingham but is reckoned to be part of Birmingham. UK
  7. Someone emailed me and said the link was broken and they were unable to download the handbook from here. Here it is again in case it is of use to anybody else. Alan Alldays Manual and specification.pdf
  8. Is there any particular reason why you are not following the recipe I posted at the start of the thread? Twice in the OP I wrote that you melt the wax then pour it into the White Spirit. You describe trying to add the thinners to the molten wax...For reasons of safety using a similar logic to always adding acid to water...I aways add the hot wax to the volatile White Spirit in order to ensure that a small amount of of the White Spirit is not heated immediately to the temperature of the wax....a small amount of hot wax is added to the cooler body of White Spirit thus the volatile thi
  9. As someone who has worked with his hands all his life I am certainly not denigrating my fellow craftsmen. I am sorry my post has evidently come over that way. This is a thread about relative hourly rates and job costing. I was trying to make a comparison between the investment in equipment and premises of a sole trader blacksmith and that of a sole trader who worked on site...ie had no premises overhead. Electricians and plumbers were mentioned because of Kozzy's post earlier...the same comparison applies between any tradesman that can work from a tool bag and one that requires a pr
  10. And get back to coffee first! Glad to hear it, well done! Alan
  11. It would be interesting to hear from any (jobbing/domestic) plumbers or electricians on here with a foot in both camps so to speak. I have always marvelled at how much per hour they can charge for their time. Given the minimal investment in premises and equipment those trades have...and the narrow area of knowledge required relative to that of a jobbing metalworker / blacksmith, who as often as not are equipped and capable of basic plumbing and electrical work. Maybe it is just their skill and experience which means although there is not much scope for creativity, the efficiency of t
  12. Could you use those in a shaper? The ones on the old machine I knew, I remember as being much heavier top to bottom (or in shaper terms front to back). I hated the machine...but Angus my fellow student loved it. I was always waiting for it to go bang...to be fair it never did. Alan
  13. I think only the long one is a boring bar. The others are just standard left, facing, parting/grooving, thread cutting(?) and right. With the paint I presume that they are tipped with either HSS or carbide depending on their generation. Alan
  14. You misunderstand me...I was referring to the years indivisible by two. Alan
  15. I thought it sounded like something to do with a distopian film by one of the old Monty Python team. Alan
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