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Type: Posts; User: LexD

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  1. Replies
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    I have used the same H&F folder at work and I ...

    I have used the same H&F folder at work and I doubt it will bend 3mm aluminium over the length required, everything on the machine is poorly finished and the balance of the bending leaf is not right...
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    740

    From what I have seen online the genuine Rahn...

    From what I have seen online the genuine Rahn repeat o meter uses a Mahr dial indicator with 20 millionths of an inch divisions (.00002"), I don't have one of those but I do have one with .0005"...
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    652

    Great work Bob, have you used it yet?

    Great work Bob, have you used it yet?
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    740

    I finished the top section today and gave it a...

    I finished the top section today and gave it a quick test which did confirm that it works well. In the attached video the screw can be seen moving down quite a distance while the gap between the bars...
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    740

    Don't worry too much about the differential...

    Don't worry too much about the differential adjustment screw, I am just trying to make it as close as possible to the genuine article, any fine thread will do the job, an ME thread would be my choice...
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    740

    For this application it works more like this:...

    For this application it works more like this: https://en.wikipedia.org/wiki/Differential_screw#/media/File:DifferentialScrew.gif
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    740

    Yes, it is a separate piece, the 8mm stud is...

    Yes, it is a separate piece, the 8mm stud is reduce to 1/4" diameter on that end and the 12mm piece is drilled and reamed to provide a nice transition fit on it, the two pieces are retained together...
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    Building a "Mongrel" Repeat O Meter.

    This may end up being a long term project for me as I don't really need it but I would like to check the general condition of a couple of surface plates that I have. I have studied a lot of home...
  9. A little know fact about coventry style chasers -...

    A little know fact about coventry style chasers - If you sharpen chasers but don't have the measuring gauge simply multiply the number on the front by .003 to get the height required at the tip of...
  10. I have a couple of sets of left hand chasers,...

    I have a couple of sets of left hand chasers, here are a couple of photos to show the difference.

    405216
    405217
  11. There are no left hand heads, you just need left...

    There are no left hand heads, you just need left hand chasers and run machine in reverse.
  12. Coventry Die Head Chasers - Left Hand 1/4" UNF to suit 1/2" Head.

    Anyone have a spare set?
  13. Replies
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    1,145

    I made a set a few years ago using the Rob...

    I made a set a few years ago using the Rob Renzetti video as a guide, they work as he describes and have had a lot of use, in fact they are probably due for re-grinding now due to a few scratches and...
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    VIC Any of these still available Steve?

    Any of these still available Steve?
  15. Replies
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    2,581

    I fitted inlet and outlet fans with a thermal...

    I fitted inlet and outlet fans with a thermal switch, in the enclosure of the first VFD installation I did about 20 years or more ago for my vertical milling machine, the switch is set to 30...
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    Today I decided to make another pulley slightly...

    Today I decided to make another pulley slightly smaller than the last one to slow the spindle down a bit more, this one is 22mm diameter giving a speed of approximately 4350 rpm, which I feel more...
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    The wheels that I have were 6" diameter but I...

    The wheels that I have were 6" diameter but I have dressed them down to 5" suit the Waldown, they were rated at 4140 max rpm and tested at 6200 rpm, those figures no longer apply at the smaller...
  18. Replies
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    A new crowned pulley for a Waldown TPG.

    My Waldown C1 has always run too fast for the 5” wheels that I use, the spindle speed was about 5650 rpm using the correct pulley combination (32mm & 80mm ) this equates to about 7500 surface feet...
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    34,426

    Not a lot of progress lately as I wait for...

    Not a lot of progress lately as I wait for Australia Post to deliver some material. This is the stroke adjustment access hole.

    404500404499404498
  20. I would say that it is of European origin, that...

    I would say that it is of European origin, that style of spindle was used by Deckel and other manufactures but I am not sure about a specific name for it.
  21. My old German vertical mill has that style of...

    My old German vertical mill has that style of spindle nose in MT4, I had to make all of my own arbors.

    404481404482404483404484
  22. Replies
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    34,426

    Today I finished the wobble shaft, this will...

    Today I finished the wobble shaft, this will allow the stroke to be adjusted from zero to about 16mm.

    404442
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    34,426

    This thread sort of died out earlier this year...

    This thread sort of died out earlier this year and I am not sure how the other guys went with their scraper projects, my Milwaukee conversion was basically finished back then and is working well but...
  24. Thread: Steel plate

    by LexD
    Replies
    27
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    2,549

    You will not find anything other than Hot Rolled...

    You will not find anything other than Hot Rolled plate in the required size, off the shelf,in Australia, your only option is to have a piece cut to size and then ground to clean up.
  25. What is holding it in there?

    What is holding it in there?
  26. Replies
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    2,782

    If you are game you could try Mig welding, or...

    If you are game you could try Mig welding, or tacking really, a small hex nut (maybe M4) to the domed head of the drive rivet. Somehow you need to hold the nut over the head of the rivet while...
  27. Thread: Help with inserts

    by LexD
    Replies
    5
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    875

    That is a really good delivery time, it takes...

    That is a really good delivery time, it takes about another 2 weeks for Aliexpress items that land in Sydney to arrive at my place in Victoria.
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    While working inside the headstock of my...

    While working inside the headstock of my Colchester Lathe I came across one particular circlip that was impossible to remove with standard circlip pliers, the photo and video show how I recut the...
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    Laydown threading inserts basically have no...

    Laydown threading inserts basically have no clearance, the geometry of the tool holder provides the clearance and some holders have interchangeable carbide seats to tilt the insert to allow for...
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    Just by comparing readings between them with a...

    Just by comparing readings between them with a DMM and finding one that was completely different to all the others. After removing it a final test with a component tester confirmed that it was faulty.
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    Just a follow up on this thread for anyone with...

    Just a follow up on this thread for anyone with this same problem: after replacing one of the six IGBT's with a new item from Aliexpress the drive is now running like new.

    403423

    403424
  32. Replies
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    Current is directly related to Voltage, you can't...

    Current is directly related to Voltage, you can't compare a single phase 240 volt motor, to a 3 phase 400 volt motor, purely on the amperage draw on the nameplate..
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    It would be much easier and cheaper to leave the...

    It would be much easier and cheaper to leave the original motor, pulley and belt in place and just fit a VFD.
  34. Replies
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    I think the functions are pretty standard for a...

    I think the functions are pretty standard for a milling machine DRO, my old Easson on another machine is very similar.
  35. Thread: Reamer ID?

    by LexD
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    947

    What is the diameter of the reamer?

    What is the diameter of the reamer?
  36. Replies
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    It's a Yihao (YH) model YH800-3 from Aliexpress.

    It's a Yihao (YH) model YH800-3 from Aliexpress.
  37. Replies
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    Yes the Clecos will be gone soon, now that I know...

    Yes the Clecos will be gone soon, now that I know everything fits together properly.

    I like the way this DRO displays the PCD function.

    403045

    403046
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    A couple more photos as things progress. ...

    A couple more photos as things progress.

    403043

    403044
  39. Replies
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    A new control panel for an old milling machine.

    I have a Beaver milling machine that is 45 to 50 years old and only had a basic fwd/off/rev switch and as part of the VFD upgrade I decided to make a new control panel with a built in VFD. The box is...
  40. Replies
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    You have to read some of the labelling on tools...

    You have to read some of the labelling on tools very carefully John, althought they might mention Germany it does not necessarily mean that the product was made there. This guy tested the Walter...
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    Hi John, does it actually have "Made in Germany"...

    Hi John, does it actually have "Made in Germany" on it? It looks like a generic Chinese wrench produced for many different tool suppliers.
  42. Replies
    3,015
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    1,537,980

    Sticky: Are you only doing the lightening holes or did...

    Are you only doing the lightening holes or did you make the actual ribs?
  43. Replies
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    1,537,980

    Sticky: Nice job and tough to do joggles like that,...

    Nice job and tough to do joggles like that, unless the material is in the annealed condition?
  44. Thread: VEVOR Castors

    by LexD
    Replies
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    647

    They do look very nice, if you end up getting a...

    They do look very nice, if you end up getting a set please do a bit of a review.
  45. I engraved the degree lines on a rotary table...

    I engraved the degree lines on a rotary table using a 20 degree bit, the numbers were stamped using a cobbled together jig.
  46. Sharpening End Mills and measuring Relief Angles.

    I have been sharpening some end mills, slot drills and small slitting saws lately using a Harig Air Spindle which has always produced excellent results but setting it up to achieve the recommended...
  47. Replies
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    Nice job John, have you tried it out yet?

    Nice job John, have you tried it out yet?
  48. Thread: cheap VFD

    by LexD
    Replies
    12
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    2,388

    [QUOTE=bollie7;2006516]Gday All. Ive been...

    [QUOTE=bollie7;2006516]Gday All.
    Ive been toying with the idea of adding a VFD and 3 phase motor to my drill press. Not super serious but I got a email from Alixpress last week and they had a small...
  49. Thanks Ash, they arrived today.

    Thanks Ash, they arrived today.
  50. Replies
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    This is the one I made years ago. 402501

    This is the one I made years ago.

    402501
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