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  1. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
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    34,762

    I’ve finished up the pedal and it got it’s maiden...

    I’ve finished up the pedal and it got it’s maiden flight just now. I had to swap out the max amps potentiometer as the 1k one was limiting the max amperage to 130A, put a 10k pot in and now it’s...
  2. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    I’ve started the rebuild process. Always a fun...

    I’ve started the rebuild process. Always a fun time as I get to lay out all the components and start putting them in their place for (hopefully) the final time.
    ...
  3. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    DIY TIG Pedal

    I have all the parts in paint. Hanging up after some machine grey alongside some table legs that are getting a spruce up before they go off to a local charity.
    ...
  4. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    That 2.5mm stuff is way too thick. 0.9mm is way...

    That 2.5mm stuff is way too thick. 0.9mm is way too thin. I think I need some 1.5-1.75mm
  5. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    Nice proof of concept but this spring wire...

    Nice proof of concept but this spring wire doesn’t stand a snowballs chance in hell of holding up the pedal.

    https://uploads.tapatalk-cdn.com/20221020/750a99fcbc2026b01eca68af7951e254.jpg

    Looks...
  6. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    My thinner piano wire came in. I think it’s too...

    My thinner piano wire came in. I think it’s too light but I’ll give it a go anyway. This time I built a mandrel to form the spring on the lathe. Low speed and back gear.
    ...
  7. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    The log potentiometers are definitely much...

    The log potentiometers are definitely much better. I’ve also found that a 1K pot is a lot better than the 10k I have been using. Is it possible that the welder is seeing the resistance and using that...
  8. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    Testing rig with new potentiometers. ...

    Testing rig with new potentiometers.

    https://uploads.tapatalk-cdn.com/20221016/88db02dbc376e84499cc5641ff9af746.jpg
  9. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    I’ve also ordered some 1mm music wire to make a...

    I’ve also ordered some 1mm music wire to make a new spring for the upper pedal.
  10. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    Yeah I did quite a bit of work to get the...

    Yeah I did quite a bit of work to get the potentiometer layout correct. Actually just reread the whole thread to understand what I did.

    Oddly even without the second potentiometer the pedal goes...
  11. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    Wiring done. I’m also going to swap out the...

    Wiring done. I’m also going to swap out the potentiometers for logarithmic ones as I need less change at the beginning and more at the end as the pedal has more amperage change in the beginning. Also...
  12. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    DIY TIG Pedal

    So after a few extra bits this weekend I am very close to giving it a test run. Just a couple of things to fix.

    I made the brackets to accept the pivot bolts. Originally I made them from 5mm plate...
  13. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    Mr postman arrived today with my new ER32 Collet...

    Mr postman arrived today with my new ER32 Collet Chuck for he lathe (that’s another project) and my music/piano wire. I couldn’t find the appropriate spring I wanted so in the end thought I’d have a...
  14. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    I’m the same. Still use rosin core 60/40. Can’t...

    I’m the same. Still use rosin core 60/40. Can’t get the lead free stuff to work as nice as the leaded.
  15. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    DIY TIG Pedal

    Good idea. I’m thinking of hard wiring his pedal vs having a removable connector so I’ll make sure I solder and heat shrink each connection. Wide open pedal in the middle of a weld would not be fun :O
  16. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    I wanted a strong stop on the pedal motion so...

    I wanted a strong stop on the pedal motion so that I don’t run the risk of breaking the potentiometer. Some scrap steel and an M4 nut and bolt:
    ...
  17. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    DIY TIG Pedal

    Some progress today. First step was to grind back the welds and start with a nice clear chassis.

    Next I took some right angle brackets and made some Delrin bushes for them. These are going to hold...
  18. Replies
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    My Artco belt came in and I stripped the machine...

    My Artco belt came in and I stripped the machine and installed it.

    https://uploads.tapatalk-cdn.com/20221008/46dfbe32fbce8d2a89ffce3a9ebcad2b.jpg


    Worryingly it made a load of noise with the...
  19. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    Today I took a trip to Bunnings and bought a load...

    Today I took a trip to Bunnings and bought a load of parts for my TIG pedal v2.0 build. 600x600x1.6mm steel sheet, small roller bearings, nuts and bolts and some L brackets.

    I also decided to take...
  20. Replies
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    Yep, 100% If I keep playing around and taking...

    Yep, 100%

    If I keep playing around and taking photos I’ll find a setup with works for my machine and then hopefully knock out a nice even primary fever each time!
  21. Replies
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    Yeah ok, thanks for that as I really have no idea...

    Yeah ok, thanks for that as I really have no idea which direction to go. I am trying to figure out a way of setting up on the surface plate but not sure what the alignment should be done with respect...
  22. Thread: DIY TIG Pedal

    by neevo
    Replies
    89
    Views
    34,762

    DIY TIG Pedal

    I have been using my pedal but I got the pivot backwards, so it really doesn’t work. I’ve been playing around with ways to make it work the correct way around but I’m really struggling with getting...
  23. Replies
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    First use of my D Bit ground drills today. A...

    First use of my D Bit ground drills today. A torture test trying to drill a 3.5mm hole in a 316 SS bolt. Whilst they move a little when not perfectly ground, they drilled out easily.

    Very pleased.
  24. Replies
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    My 3 phase electrical bits came in today. I’m...

    My 3 phase electrical bits came in today. I’m using the switch to isolate the VFD and the socket to allow me to put a 3 phase plug on the grinder.
    ...
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    Even with a wedge on the primary cutting edge,...

    Even with a wedge on the primary cutting edge, the drills cut exceptionally well. Will continue to refine the process but it’s great to be able to now perfectly sharpen all my twist drills.

    Have a...
  26. Replies
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    Why do I want a D Bit Grinder

    This morning I tried a few different setups with aligning the drill in the chuck.

    https://uploads.tapatalk-cdn.com/20220903/d1e86a96e56a764368f88f85091cae1e.jpg

    Purple - Align the bottom of the...
  27. Replies
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    OK, that would suggest the purple line then with...

    OK, that would suggest the purple line then with a little extra angle to allow for removing material.

    Will see how I go.
  28. Replies
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    Why do I want a D Bit Grinder

    I also have some ideas on how to best align the flutes of the cutting edges. The Deckel SO has a quick disconnect of the workhead. So I’ll pop it off and use a parallel to align the flutes on my...
  29. Replies
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    Mine seems to be pretty solid but I have noticed...

    Mine seems to be pretty solid but I have noticed that the wheel is not perfectly true. I assume just using it will wear it in properly as it’s diamond, so dressing it seems out of the question. Just...
  30. Replies
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    Yes I’m almost certain that’s the problem. This...

    Yes I’m almost certain that’s the problem. This morning I have been aligning the central line through the webs with the horizontal line on the work head and it’s getting me a lot closer. Not 100%...
  31. Replies
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    https://www.ebay.com.au/itm/123944419091?mkcid=16&...

    https://www.ebay.com.au/itm/123944419091?mkcid=16&mkevt=1&mkrid=705-154756-20017-0&ssspo=QGMyx595Ql6&sssrc=2349624&ssuid=pa2bG5LaTsC&var=&widget_ver=artemis&media=COPY
  32. Replies
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    I’ve watched that about 6 times already. Great...

    I’ve watched that about 6 times already. Great video. However he aligns an already well aligned cutting edge to the spindle. How should I do it when I align a not so well aligned cutting edge?
    ...
  33. Replies
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    If the primary is grinding as a wedge and not a...

    If the primary is grinding as a wedge and not a uniform width, what steps can I take to adjust? I assume the cutting edge needs to be rotated but I cannot figure out which way.
  34. Replies
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    I’ve spent the evening with a cup of tea and some...

    I’ve spent the evening with a cup of tea and some headphones and slowly working my way through my metric drills, having a go at sharpening them. I’m using red sharpie to mark the tips, aligning them...
  35. Replies
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    What angles are advisable for general 118 degree...

    What angles are advisable for general 118 degree drill bits? I have been using 4 degree primary and 15 degree secondary but read that Harold Hall suggests 10 and 25 degrees?
  36. Replies
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    I need more practice as I’m not getting the...

    I need more practice as I’m not getting the primary grind an even width all across which I think means I don’t have the cutting edge perfectly level. However I am able to make something that looks...
  37. Replies
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    I am ready to grind something!!!! Today my postie...

    I am ready to grind something!!!! Today my postie dropped off my ER collet adapter and VFD switch.

    The collet adapter is already in the machine and I have it set up to have a go at grinding a 9mm...
  38. Replies
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    Why do I want a D Bit Grinder

    My collets came in today:

    https://uploads.tapatalk-cdn.com/20220901/2c3a572a4aed6e491ef31f647a2b0b0a.jpg

    I wasn’t expecting much considering the price but I have to say I am pleasantly...
  39. Replies
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    Hey Steve, thanks but I think I’m ok now. I’ll...

    Hey Steve, thanks but I think I’m ok now. I’ll order a genuine one when the old one arrives as a return. Then I’ll keep the one I made as a spare.
  40. Replies
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    Well that was unexpected. A rare trip to the...

    Well that was unexpected. A rare trip to the office and when I got home my belt and VFD were delivered.

    First step was to make the belt. It’s a DIY job that you melt the ends and join together. I...
  41. Replies
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    I ordered a VFD and 4mm round belt and will make...

    I ordered a VFD and 4mm round belt and will make my own for now. Then I’ll likely spring for the proper one in a few weeks.
  42. Replies
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    Why do I want a D Bit Grinder

    Yeah, the one I have is 480mm and I think I need 500-510mm. Thanks for trying though. At least I know H&F is it of the equation.
  43. Replies
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    Why do I want a D Bit Grinder

    Yea please, that would be awesome. Not even sure the US supplier has the correct length belt, so a local alternative would be fantastic.

    I checked H&F website but the specs on the replacement belt...
  44. Replies
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    Yeah sure! I think I need about 500mm length....

    Yeah sure! I think I need about 500mm length. Much appreciated.
  45. Replies
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    I was also thinking a large o ring? I’ve used...

    I was also thinking a large o ring? I’ve used those round section ones before so that’s definitely an option, but if I do that I’ll likely just order the correct one from the supplier in the US.
  46. Replies
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    Spindle is back together and the preload set. I...

    Spindle is back together and the preload set. I will check it after a little bit of running and make sure it’s not settled too much.
    ...
  47. Replies
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    Mr Artco order came in with my belt, collet nut,...

    Mr Artco order came in with my belt, collet nut, dial knob and spindle bearings.

    I have the spindle in the freezer trying to shrink it down before I press the bearings on.
    ...
  48. Replies
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    I managed to find the old cable I got off the...

    I managed to find the old cable I got off the grinder. Gave it a bit of a clean and it’s just about long enough to work.

    Whilst I was at it, I removed the old cable gland. The old one was not...
  49. Replies
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    Ok, thought so but always good to check with the...

    Ok, thought so but always good to check with the brains trust!
  50. Replies
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    Why do I want a D Bit Grinder

    Can anyone confirm I have the motor wired correctly? I assume it doesn’t matter which coil order you go in as long as you have the connections on the right coil direction?

    I have my motor set up...
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