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  1. dennisa49

    50mm bright bar to a good home

    All good, the gear has a home. Thanks Dennis
  2. dennisa49

    50mm bright bar to a good home

    Good day machinists, I have some steel and unused carbide tipped tooling to give away. 50mm machining bright bar about 900mm, 30mm bright bar 770mm, 30mm black bar 490mm, 25mm black bar 1040mm. Tipped tooling 12 x 12 - 20 pieces. Located in the Qld. Gold Coast area, pick up only. As per the...
  3. dennisa49

    Shutdown project

    Good day, This is one of my shutdown projects. The king is 93mm high, the pawns 45mm. All machined out 6061 25mm round stock. Very satisfying project. I made the board with recesses to allow me to leave the game set up when I put the board away. Stay safe and well, regards Dennis
  4. dennisa49

    Should you run carbide with your machine at flat chat? Not necessarily.

    Good day, I use replaceable 11mm inserts with a H&F AL51g machine. Depending on the diameter of the work piece I run at 350 or 500 rpm. Very infrequently a higher RPM may be required. With a light cut rate on the last run the finish is mirror smooth. I am unable to use flood cooling or lube in...
  5. dennisa49

    Bandsaw blade problem

    Hello MF, thank you, There is something I was not aware of. Add to that a lower pitch, wider set, had to fail. I am seriously cross with myself, after almost 55 years of trade work I forgot the basics. Thus the new bump, $11 poorer, but a couple of hundred wiser. Good fortune for the next...
  6. dennisa49

    Bandsaw blade problem

    Thank you for the suggestions, I have a feeling the problem is in the blade or it’s settings. It seems odd that the new blade has developed the same bump. I used the H&F manual’s tension setting method. I will start from scratch, check the blade condition, alaignment and the blade tension. It...
  7. dennisa49

    Bandsaw blade problem

    Good day, I have a question relating to my small bandsaw. H & F BS-5V, small machine maximum capacity 125mm round stock. Good little machine, extremely reliable. I was cutting 50mm free machining steel. Nothing difficult. This morning the blade developed a light “knock”, once per blade...
  8. dennisa49

    Project of the Month - December 2018

    Congratulations Edi, great build, beautiful machining. Dennis
  9. dennisa49

    AL51G belt running off

    Hello, the 5M belts are expensive in Australia ($34.00) from H&F, same from bearing suppliers. A belt upgrade would be good, there is not a lot of room in the cabinet to make the change to new section pulleys. Is there a higher quality or better material belt available. I keep a spare belt on...
  10. dennisa49

    AL51G belt running off

    Good day and thanks, I have (I believe) overcome this problem. The pulley groups are not in perfect alignment. This has not presented as a problem until now. It seems also possible that using the two high speeds applies a fairly high torque loading to the screw that locks the motor shaft...
  11. dennisa49

    AL51G belt running off

    Hello, My H&F 9 x 20 lathe is spitting the v-belt from the pulley group on the motor driven shaft. This machine is also sold by Harbour Freight, Grizzly and Jet. There seems to be a runout of .5mm or so on the bottom or A shaft pulley which will be causing the problem. I would like to know if...
  12. dennisa49

    Mini Mill X/Y Tram and Gas Springs

    Good day Andrew, it looks like a very elegant solution. The weight of an SX2P is around 72kgs. I believe the head to be about 25 - 30% of the total. The well known hardware chain sells gas cylinder operated struts. They have a couple that fit the bill nicely. I will proceed with care I...
  13. dennisa49

    Mini Mill X/Y Tram and Gas Springs

    Thanks Andrew, I am ok with the struts. The brackets that support the head interested me. I had in mind to bolt the bracket to the left side of the head, looking at the machine. The idea of a cylinder on both sides is great, no unequal load. I reckon the load is about 20 kilos, travel of 250mm...
  14. dennisa49

    Mini Mill X/Y Tram and Gas Springs

    Hello, as Peter said, nice work. I am curious about the cylinder attachment points and the plates that are used as mounts. Could you tell me how they are fixed to the milling head please? I have always felt that the single cylinder would be an asymmetric force. Your mod with two cylinders over...
  15. dennisa49

    6 Cyl Radial Air Eng (GrabCad)

    Good day again, Here is a picture of a Pratt and Whitney twin row Wasp (2X 7) crank. I hope this also helps. Regards, Dennis Thanks to Pratt and Whitney photo site.
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