Search:

Type: Posts; User: Michael G

Page 1 of 100 1 2 3 4

Search: Search took 0.25 seconds.

  1. Replies
    3
    Views
    50

    I've used them to clean ink drawing pens and they...

    I've used them to clean ink drawing pens and they do that quite successfully. One trick is to put water in the cleaner but put small parts in a glass jar with solvents or what ever cleaning solution...
  2. Replies
    9
    Views
    295

    Specialist gear cutting shops will make one for...

    Specialist gear cutting shops will make one for you but for something like that, any number of our members cut gears. I'm in Adelaide so it would cost you postage both ways but there are others...
  3. Replies
    10
    Views
    206

    Probably easier to do a grinder spark test if one...

    Probably easier to do a grinder spark test if one is tool steel and the other low carbon steel.

    Michael
  4. The difficulty is not necessarily in the cutting...

    The difficulty is not necessarily in the cutting but because it is rolled into a square and welded, there can be stresses in there that make it twist/ bend if a side is removed. It will depend on the...
  5. How about some commercial C channel, with either...

    How about some commercial C channel, with either bigger rollers or two small rollers, one for each flange? I agree with all those comments about cutting RHS - it will not work well.

    These guys...
  6. Replies
    16
    Views
    446

    As an alternative to differential indexing (which...

    As an alternative to differential indexing (which will require change gears as well as the missing shafts), I just realised that I have a 12DP 127t gear that you could probably set up on one end of a...
  7. Replies
    16
    Views
    446

    See...

    See
    https://metalworkforums.com/f65/t199880-differential-indexing

    To get a universal dividing head cutting helical gears, the rear shaft is connected to the table feed so that as the table feeds,...
  8. Replies
    16
    Views
    573

    It should be no different to centring square...

    It should be no different to centring square stock, except do the opposite sides before moving around 90 degrees. I find that I usually have to wind the carriage back so I don't wipe out the indiator...
  9. Replies
    16
    Views
    446

    I'd agree. A universal usually has a shaft...

    I'd agree. A universal usually has a shaft sticking out the back to drive or be driven.

    Michael
  10. If it is a universal dividing head you will be...

    If it is a universal dividing head you will be alright, but if is a semi-universal then you will need a plate with 127 holes as the normal plates won't get there. If you have a BS-0 DH then you will...
  11. Replies
    3
    Views
    194

    Knobs like Bob's

    Over here (https://metalworkforums.com/f65/t205892-hunt-handle), Bob is looking for a handle for his saw. I suggested in that thread that machining one was possible and this morning decided to put my...
  12. You would need a pretty large bandsaw. Simon's...

    You would need a pretty large bandsaw. Simon's Heska might be able to do it but the majority of us here run 4x6 saws and that won't fit.

    Perhaps buy some slices of stuff from Surman metals. It...
  13. You want something like this - 389604 Basically...

    You want something like this -
    389604
    Basically an angle plate that you can clamp the blank to. Once the cut is halfway down then you need to wedge something in the cut so that the blade is not...
  14. Yes Michael

    Yes
    Michael
  15. Replies
    101
    Views
    2,615

    There looks to be a brand on the bush. It may be...

    There looks to be a brand on the bush. It may be worth contacting them to see what their thoughts were. I would have thought that this has happened before.

    Michael
  16. Replies
    10
    Views
    406

    Well yes, tricky machining but is there any...

    Well yes, tricky machining but is there any better kind?:U

    Not sure casting would be much better as you still have to make a pattern.

    Michael
  17. Replies
    2
    Views
    182

    Amazing what a lump of steel (or CI) can weigh....

    Amazing what a lump of steel (or CI) can weigh. I'm slowly installing a small jib crane for precisely that reason in my shed. There are days when that dividing head is just too heavy.

    Michael
  18. Replies
    10
    Views
    406

    I think I have sussed out how to machine one from...

    I think I have sussed out how to machine one from Al solid using some of the trick bits I have here (Volstro head et al...). Had a play on the CAD system at work and I think it should work.
    Can...
  19. Replies
    204
    Views
    4,995

    Normal cast iron probably would have been fine....

    Normal cast iron probably would have been fine. Most of the change gears I make are from steel; for low power applications it won't really matter. Simon's bandsaw is still going fine with a delrin...
  20. Replies
    204
    Views
    4,995

    Is that an involute profile you've modelled up on...

    Is that an involute profile you've modelled up on those gears? (doesn't look quite right)

    Michael
  21. Replies
    16
    Views
    675

    There is not much to them...

    There is not much to them
    https://metalworkforums.com/f65/t187465-hmm-havent-apart-lately
    I also have the Long Island Indicator book, so could have a look in there and see whether it says anything...
  22. Replies
    10
    Views
    417

    Yep. It's an anvil. Seriously though, unless...

    Yep. It's an anvil.

    Seriously though, unless it has a maker's mark on it or a distinct feature that no one else copied, it is 'an anvil'.

    Michael
  23. Replies
    28
    Views
    1,346

    Is/was the motor running at 50Hz? If via a VFD,...

    Is/was the motor running at 50Hz?
    If via a VFD, it may be that the air flow is not enough (I think air flow is related to rpm2). Just thinking that if the air flow was not enough to blow the heat...
  24. Use some dowels or something as spacers to...

    Use some dowels or something as spacers to support the edge in two places, machine then turn and machine the other side.
    Longer than your mill table could be tricky - maybe tack a bit of angle onto...
  25. Replies
    1
    Views
    165

    Measure that. I discovered some dovetails that...

    Measure that. I discovered some dovetails that were 55 degrees on my mill.

    In general 60 is a nice angle to have. It really comes down to strength - how much material is there to resist being...
  26. That lathe seems to be in current production, so...

    That lathe seems to be in current production, so if you contacted H&F, you should be able to buy a new leadscrew for it. If the leadscrew is badly worn you will may need to replace the nut as well....
  27. Replies
    12
    Views
    420

    Have you tried BA threads? They were used on...

    Have you tried BA threads? They were used on instruments all over. After that as you suggest, you are looking at 'specials'

    Michael
  28. Thread: flat belt

    by Michael G
    Replies
    7
    Views
    218

    Rydell holdings in Perth does belts. Not...

    Rydell holdings in Perth does belts. Not necessarily cheap though.

    Michael
  29. Replies
    23
    Views
    818

    If it is a Shimano fishing reel, it is Japanese...

    If it is a Shimano fishing reel, it is Japanese so probably their version of metric. You need to be looking at JIS thead tables.

    Michael
  30. Replies
    204
    Views
    4,995

    Does this give the 2.5mm pitch? (my reading of...

    Does this give the 2.5mm pitch? (my reading of the charts suggest it should)
    389049
    Michael
  31. Replies
    204
    Views
    4,995

    Change the spindle speed. The leadscrew gearing...

    Change the spindle speed. The leadscrew gearing should run off the spindle, so changing that will not alter the fun and games that you are having...

    Michael
  32. Replies
    204
    Views
    4,995

    CML and NML look to be coarse and normal pitch....

    CML and NML look to be coarse and normal pitch. Looking at the plate to get a 2mm pitch thread, I would guess that you need to have the coarse/ normal on coarse and on the 4:1 ratio.

    Michael
  33. If they are Hercus related, then the Hercus...

    If they are Hercus related, then the Hercus section is probably the best.
    If they are small things, then there is a "your latest project" thread in the Metalwork general section, or for bigger...
  34. Replies
    9
    Views
    769

    Photo 4 looks like a taper turning attachment if...

    Photo 4 looks like a taper turning attachment if you haven't guessed already.

    Michael
  35. Replies
    9
    Views
    769

    Ha! Your reluctance to name the school gives it...

    Ha! Your reluctance to name the school gives it away! Obviously it is St Jude's catholic school (Patron saint of lost causes...):U




    A slotting head like that should not be hard to make - it...
  36. Replies
    14
    Views
    504

    A place that does truck exhausts might be able to...

    A place that does truck exhausts might be able to expand the tube but the problem I see is that I think the OP wants a snug/ secure fit on the Al tube underneath. Expanding the tube just enough so...
  37. Replies
    26
    Views
    933

    To apply pressure to emery on the lathe I've...

    To apply pressure to emery on the lathe I've glued a thick (6mm) piece of felt to a block of wood. I'm able to apply more pressure and because the felt gives a bit, it will conform to the part a...
  38. Replies
    14
    Views
    504

    It will depend a bit on the tube diameter and...

    It will depend a bit on the tube diameter and wall thickness, but I think the most likely answer is 'it won't really work'.

    To achieve what I think you want to do I think you will either have to...
  39. Replies
    2,428
    Views
    536,606

    My mill lights are basically fixed and typically...

    My mill lights are basically fixed and typically always in the wrong spot. I made up this pair of arms (each leg is around 250mm long) based on an indicator stand. They need a little bit of turning...
  40. Thread: RongFu clone

    by Michael G
    Replies
    12
    Views
    507

    No, the pin diameter (H on your link) varies...

    No, the pin diameter (H on your link) varies according to size. A D1-3 and D1-4 look similar but won't fit, hence checking the pin diameter.



    I would agree with you but I can recall seeing a...
  41. Replies
    11
    Views
    1,600

    The flux on stick electrodes is actually quite...

    The flux on stick electrodes is actually quite complex - when Adelaide had a CSIRO welding research centre I spoke to one of the guys there and apparently that is where they hide some of the alloying...
  42. Thread: RongFu clone

    by Michael G
    Replies
    12
    Views
    507

    Phil, what is the diameter of the pins? That...

    Phil, what is the diameter of the pins? That seems to be the only way of telling reliably.
    D1-3 = 14.2mm
    D1-4 = 15.8mm
    D1-6 = 22.2mm

    Michael
  43. Replies
    11
    Views
    1,600

    This came out today, talking about TIG filler. ...

    This came out today, talking about TIG filler.

    https://www.youtube.com/watch?v=qUzHFLV4IyQ

    The brand he is demonstrating is "WeldMold". Anyone heard of it?

    Michael
  44. Replies
    18
    Views
    667

    Might be worth modifying anyway, as 3/4" knurls...

    Might be worth modifying anyway, as 3/4" knurls seem to be more common and with a larger range.

    Michael
  45. Replies
    12
    Views
    415

    It may be the case that someone is near by and...

    It may be the case that someone is near by and can physcially meet them & help them learn. It's certainly personal preference, but having a more precise location does help when trying to offer...
  46. Replies
    28
    Views
    1,087

    As always the devil is in the detail (in this...

    As always the devil is in the detail (in this case, who wrote the code to what standard) but you should not lose precision if Fusion can output Gcode directly, rather than go through converting to a...
  47. Replies
    7
    Views
    1,223

    Probably, but you will have to see. It would help...

    Probably, but you will have to see. It would help if the inside of the pipe was smooth (no fin) and tapered slightly outwards.



    Any dirt will become slag on the top. Apart from the dangers of...
  48. Adam, what sizes are you looking for? I have a...

    Adam, what sizes are you looking for? I have a 1/4" square broach and could do a small barrel for you if you are chasing that size; there are other cheats if the use is not going to be high torque
    ...
  49. Replies
    4
    Views
    332

    That gold coloured screw (left side of terminal...

    That gold coloured screw (left side of terminal block in your picture) is the earth

    The idea behind earthing is that any stray current can leach away, rather than wait for some hapless individual...
  50. Replies
    14
    Views
    333

    Size is not so much the issue as is rigidity and...

    Size is not so much the issue as is rigidity and power.

    There is probably not much in it between a DCMT and a CCMT insert if you are just experimenting. I use CCMT's because they fit both my...
Results 1 to 50 of 5000
Page 1 of 100 1 2 3 4