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Type: Posts; User: rodm

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  1. Thanks Kryn Yes a lot of travelling and with...

    Thanks Kryn
    Yes a lot of travelling and with voluntary work at care facilities in between.
  2. Hi Noel, Sorry for the late reply. My wife...

    Hi Noel,
    Sorry for the late reply. My wife passed away August and time for a life change so I have been selling all my machinery and shed gear. Not much left now and no chance of me reviving it at...
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    Hi Mike, No more progress as yet but have good...

    Hi Mike,
    No more progress as yet but have good intension of getting back to it.
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    Hi Steve, The stepper motor has an encoder...

    Hi Steve,
    The stepper motor has an encoder mounted on the back end of the stepper and they need a driver board to keep track of postioning. For my money I would be looking at servo motors and...
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    Gidday Harry, I did have some input with Steve...

    Gidday Harry,
    I did have some input with Steve on that machine build a long time ago.
    I can help you out if you have not resolved your problem yet. The main issue is I will require your machine and...
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    Thanks Tony, Have been side tracked doing some...

    Thanks Tony,
    Have been side tracked doing some lathe work but plan to get back to it soon.
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    VICTORIA Hi Greg, No need for express but not bothered if...

    Hi Greg,
    No need for express but not bothered if it comes that way.
    Bit late in finishing men's shed today so I am behind. Got the email thanks so let me know your deposit details via email....
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    VICTORIA Hi Greolt, I will gladly take it thanks. Let me...

    Hi Greolt,
    I will gladly take it thanks.
    Let me know by PM the total and bank details and I will send you the money.
    Men's group today so wil be a delay this end.
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    Steve, They do look quite substantial. :2tsup:

    Steve,
    They do look quite substantial. :2tsup:
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    Gary, The VFD itself generates a lot of EMI and...

    Gary,
    The VFD itself generates a lot of EMI and as it is in a plactic case and not shielded by a metal casing so you will get EMI. The shielded cable will protect the power to the motor but having...
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    Hi Gary, Issues could be electro magnetic...

    Hi Gary,
    Issues could be electro magnetic interference with the VFD being so colse to the nema 23 motor and cable. The VFD is a plastic case and therefore will radiate any electroinc noise to...
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    Hi Bob, The black cat thing is an old British...

    Hi Bob,
    The black cat thing is an old British Comedy skit updated for political correctness - light hearted comedy that doesn't require a lot of logic.

    The aluminium Tslot is expensive and some...
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    Bob, I grok it before you grok it even though at...

    Bob,
    I grok it before you grok it even though at the end of the day I didn't grok it at all. A bit like a visually challenged man looking for a black cat in a dark room that isn't really there....
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    Steve, Not using locktight yet as I have already...

    Steve,
    Not using locktight yet as I have already pulled it apart twice to accommodate forgotten bits. The trolley will be clad in ally checker plate and have a drawer for the console as well as a...
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    Hi Bob, The button head screws are in the slot...

    Hi Bob,
    The button head screws are in the slot closest to the join so therefore they do not cross each other. A 6mm hole is bored through the Tslot to use an allen key to tighten them. They hold...
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    How did you size the trolley Rod? Did you work...

    How did you size the trolley Rod? Did you work out the cutting area you wanted and then took the hardware into account?
    Yes Steve. I ordered the Tslot for the machine and trolley at the same time.
    ...
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    Thanks for all the positive feedback and also...

    Thanks for all the positive feedback and also Steve the last one did have all the bells and whistles. This one will duplicate the functions but have newer technology to achieve it. I did contemplate...
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    Found the camera and fuddled my way around using...

    Found the camera and fuddled my way around using it. Hopefully it works.

    The framework is 40X40 TSLOT aluminium with some right angle brackets to reinforce the corners. Joints are held together...
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    A new Machine Build

    Having been caught in an abyss since becoming redundant three years ago I have with the help of a private men's shed started to get back into what I enjoy.

    I am building a new machine that will...
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    Feedback on NUC computer USB BOB

    Hi All,
    I am playing around making a new machine.
    I can't give specs as it changes as I find more components in the back of cupboards.
    I started thinking it was going to be a small, lightweight...
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    Peter, I found they needed shims between the...

    Peter,
    I found they needed shims between the inner race of the bearings. I used brass shims and made them with an hollow punch.
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    I have no doubt that a machine set up with glass...

    I have no doubt that a machine set up with glass linear scales has a huge advantage but it still boils down to the electronics and mechanicals to deliver that accuracy.
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    The most accurate is ground ballscrews and buying...

    The most accurate is ground ballscrews and buying new will set you back a lot of money. You can get them on ebay second hand but you are taking a risk as you cannot test them remotely.
    There are two...
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    Bob, Should have known you had it covered...

    Bob,
    Should have known you had it covered already.
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    Bob, I would be looking at a way of separating...

    Bob,
    I would be looking at a way of separating the fines from your coolant. I did this on a small mill and used a combination of coarse through flywire and fines through a settling tank. I have...
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    Hi Ken, An intermittent problem is the worst...

    Hi Ken,
    An intermittent problem is the worst problem you can have.
    I would not trust my machine if such a problem presented.
    WillyInBris suggestion is the best idea because if you put the...
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    Dean, The workshop in the video belongs to a...

    Dean,
    The workshop in the video belongs to a good friend of mine and the SIP is in a tent in the backyard because the council will not allow a structure tall enough to house it. He also has many...
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    Hi Sean, Good to hear you got away with the...

    Hi Sean,
    Good to hear you got away with the family.
    Look forward to seeing some progress.
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    Hi Sean, I was enjoying reading your Plasma...

    Hi Sean,
    I was enjoying reading your Plasma build and it stopped three weeks ago - how is that for putting the pressure on. :)

    If you are in a position to post an update that would be great.
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    Hi Rod, First the link you provided shows that...

    Hi Rod,
    First the link you provided shows that router at a much higher price on their Website. You may have a better deal through Tony though.

    I have a reasonable knowledge of most CNC things and...
  31. Thread: New CNC

    by rodm
    Replies
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    Hi David, The machine looks smart and impossible...

    Hi David,
    The machine looks smart and impossible to get better value for money elsewhere.
    The TAP format is an abbreviated extension for tape so an old computing format but still used in CNC...
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    Bob, Great machine to have and I can appreciate...

    Bob,
    Great machine to have and I can appreciate the quieter operation over alternatives as well as a nice job on the mobile base.

    I have been attending the Northern Districts Men's Shed last...
  33. Brenton, The size of beam on that machine is 120...

    Brenton,
    The size of beam on that machine is 120 by 80 and is adequate for 1200mm span and that design. I pointed you to ally 160 by 80 beam as it was closest to the steel 200 by 50 beam you were...
  34. Hi Brenton, Ally extrusion is best for the...

    Hi Brenton,
    Ally extrusion is best for the gantry beam due to a number of issues.
    Welded steel requires stress relief then one or two faces machined flat for the linear rails to be mounted. Weight...
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    Hi Rob, I have seen a secret compartment like...

    Hi Rob,
    I have seen a secret compartment like you describe in a Victorian writing box.
    Thanks for reminding me and for the links - plenty of ideas in those.
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    Yeah I agree about showing hides but if nobody...

    Yeah I agree about showing hides but if nobody does then the ideas can't grow. It is amazing how an idea can produce many variations and sometimes totally different concepts.

    I also came up with...
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    Update on this one. I made a pivoting tray that...

    Update on this one.
    I made a pivoting tray that fixes to the underside of the breakfast bar. It holds three sets of keys and a mobile phone.
    Better to see the photos than try to describe it. Easy...
  38. Thread: ctc

    by rodm
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    Is it the falling $AUS ?

    Is it the falling $AUS ?
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    Hi Bob, Looking at the pictures the perspex...

    Hi Bob,
    Looking at the pictures the perspex looks to me like it has a protective plastic film on it. If so pull it off and things should be a lot clearer on the lcd. As you know I have plenty of...
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    Thanks Fred, Working on it now. :2tsup:

    Thanks Fred,
    Working on it now. :2tsup:
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    Hi Christos It is in the CNC Machines sub forum.

    Hi Christos
    It is in the CNC Machines sub forum.
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    Saving a Forum thread

    Hi All,
    I want to save a thread of around 131 posts with lots of attachments and can't work out how to do it. I have saved the link to the thread but no doubt sometime that will expire.
    Help please
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    Mach3 is a single in-focus application so to get...

    Mach3 is a single in-focus application so to get it displaying on two screens you have to create an extended screenset. I used Screen4 which is in the Mach3 directory and developed an additional...
  44. Bob, She has got taste - It is blue

    Bob,
    She has got taste - It is blue
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    The cheapest linear rail is the type used in a...

    The cheapest linear rail is the type used in a sliding compound mitre saw.
    If you can change your design to have two rails then maybe these will work.

    If not then a single square rail and one or...
  46. Agree with the comments about heat conductivity....

    Agree with the comments about heat conductivity. Perhaps you could design a knob that can be turned by a C spanner or T handle screwdriver or something along those lines.
  47. Thread: Toolmakers hammer

    by rodm
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    This raises an interesting point. How many of you...

    This raises an interesting point. How many of you use a hammer for positioning jobs? I use a hammer a lot for positioning jobs on the mill or fitment of parts as I seem to have more control with a...
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    Hi Peter, Good to see the mill build revived....

    Hi Peter,
    Good to see the mill build revived. :2tsup:
    The rapids are more than you will need for a mill unless you intend to install a high speed spindle. I do wonder how tight your jibs are though...
  49. Thread: ATC

    by rodm
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    No doubt there will be a big change from what you...

    No doubt there will be a big change from what you are used to but Mach3 and steppers are quite capable and probably much easier to set up than servos and proprietary operating systems.
    Keep us...
  50. Thread: ATC

    by rodm
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    1,686

    The discussion was with a group of engineers. One...

    The discussion was with a group of engineers. One had an EDM so it headed down that path and using a bicycle spoke as a drawbar. I put it in as an idea only.
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