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  1. S

    P.M. Research #5 Steam Engine

    Thank you all for your comments, I really do appreciate them. I'm feeling very frustrated at the moment, in pain and not able to get into my workshop. Hopefully soon 😊
  2. S

    P.M. Research #5 Steam Engine

    My apologies for no new content. I went in hospital a couple of weeks ago for an operation on my spine and it's going to be a while before I can do any work on my #5.
  3. S

    P.M. Research #5 Steam Engine

    On a slight tangent, I came across this pin chuck from DSPIAE. It holds taps and drill bits more securely than other pin chucks and is very comfy to hold.
  4. S

    P.M. Research #5 Steam Engine

    Getting back to the cylinder, I used my 50mm face cutter on the steam chest face. This face cutter gives a really good finish on whatever material I use. Whilst in this position the steam chest pocket was machined out and the three cutouts for the steam passages. I couldn't actually see...
  5. S

    P.M. Research #5 Steam Engine

    I was a little concerned with the cast crankshaft, it was quite bent and I wasn't sure I would be able to machine it to plan dimensions. I ran a file over all the sticky out bits, then in the three jaw chuck machined it roundish and centre drilled it at both ends. Swapping to my nice new...
  6. S

    P.M. Research #5 Steam Engine

    Thank you both so much for all the information on annealing, I appreciate your fingers must now be aching so much 😉. I do like the test of running a file over the casting to see how hard it is. I did this on the #5 casting and there was a lot of difference between the thick part of the frame...
  7. S

    P.M. Research #5 Steam Engine

    Thank you gents for your comments regarding annealing the castings. I have a friend with a wood burning stove which I can use. When I do the next castings I'll have to volunteer to clear the ashes out next morning 😉 Out of interest how would I be able to measure the temperature the stove gets...
  8. S

    P.M. Research #5 Steam Engine

    Thank you for your comments 😊. I have my eye on another P.M. Research casting kit so I'll have to do some research on annealing. I have a couple of led panel lights over my bench which makes it a nice working area. I do need to put some good lighting over my machines, especially the milling...
  9. S

    P.M. Research #5 Steam Engine

    Hi Craig, Thank you for your suggestion and I will look at his videos. The tap driver I use is the one in the photograph below. I use the knurled section at the bottom most of the time and the T section when it gets harder. I can be a bit clumsy sometimes and I think with that, the tap being...
  10. S

    Stuart Twin Oscillator build

    A little more progress in our buddy build. The Twin Oscillator has been assembled, though quite a bit of fettling was required to get the parts to fit. With shafts and holes made to plan, a bit of polishing was required to get them to fit. It turns over but is quite stiff, the pistons seem a...
  11. S

    P.M. Research #5 Steam Engine

    With the base now nice and true I clamped the Standard down and drilled the four #50 holes in the top. When I was tapping the last hole the tap struggled to get through, I took it out a couple of times to clean it and the hole but it snapped 😭. After a lot of panicking and various pointy...
  12. S

    P.M. Research #5 Steam Engine

    With the bottom of the Standard just a tad out of true, I thought it would be worthwhile truing it up. Whilst the Standard was upside down I also drilled the 2-56 clearance holes in the base.
  13. S

    P.M. Research #5 Steam Engine

    So far......
  14. S

    P.M. Research #5 Steam Engine

    With a couple of new #50 drill bits I set the Standard on its side again and started drilling the four holes which will be tapped 2-56 for the slide valve shaft. The first was a bit tough, second and third were a little easier, but the last one would not drill, even though I was using a cutting...
  15. S

    P.M. Research #5 Steam Engine

    I blunted my only #50 number drill bit on the bearing blocks, so whilst waiting for a couple more I started to machine the Cylinder. I used a file to lightly take down a few high spots then fitted it to my shiny new four jaw chuck. It didn't take to long to get it centered, I centered it...
  16. S

    P.M. Research #5 Steam Engine

    With the bearing blocks threaded, they were clamped together and thin cyno applied to the joints. I didnt want to trust must the 2-56 screws to keep evrythjng in place whilst drilling/reaming to the crankshaft size. The 2-56 screws were fitted, before fixing the Standard to a 90 degree block...
  17. S

    P.M. Research #5 Steam Engine

    The Standard was mounted on its side and the lower bearing blocks were machined to get a nice flat surface. Drilling the lower bearing blocks was not straight forward, I couldn't get a Chuck or collet to take a standard length drill bit because the Standard frame was in the way. It required...
  18. S

    P.M. Research #5 Steam Engine

    I did have a problem trying to drill/tap the bearing hubs, I ended up having to make some really long drill bits. I'll post pictures of them tomorrow. Any advice, hints or tips would be appreciated 😊
  19. S

    P.M. Research #5 Steam Engine

    Hi Craig, I was quite anxious when I was about to start, then I checked it again and again 😉 It was actually really smooth when running, I was surprised how smooth it was. I did keep checking everything was tight, the thought of something coming loose and flying around was constantly in my...
  20. S

    P.M. Research #5 Steam Engine

    The upper bearing hubs were machined together initially, this made it a lot easier to hold and align for machining. They were then separated, finished off machining and drilled and tapped for oil cups.
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