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Type: Posts; User: wizard

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  1. Replies
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    Re: 1st Build, will this be a decent Design?

    A thought just occurred! The power supply issue can be completely eliminated by buying stepper drives with built in supplies ready to be wired up to line voltages. These drives will cost a bit more...
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    Re: 1st Build, will this be a decent Design?

    It depends upon the specs for the power supply. Switch mode supplies for example are often designed to work from 50HZ to 400 Hz with a similarly wide voltage input range. However not every supply...
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    Re: 1st Build, will this be a decent Design?

    Look for a supplier or electronics to the industrial markets. The parent company of Newark in the USA is based in England if I remember correctly. The problem is I can’t remember the name of that...
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    Re: CNC machines from plywood

    Yuriy

    For me looking elegant comes well after working well so I wouldn’t compromise a build to make it look good.

    About that finish issue. The one big challenge with anything wood related...
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    Re: Fixed Gantry Build

    UCBones.

    I think we have mis communicated here in a couple of ways.

    With respect to expiry granite filling aluminum T-Slot extrusions, there are several problems I will try to clear up.
    ...
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    Re: Any Thoughts on T-Nutz extrusions?

    Never used them. At work we use extrusions from Bosch,80/20 and a few others. Nobody is perfect but you have already had an experience you didn’t like. By the way if you are ordering customs...
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    Re: Z-axis overshooting sometimes

    Coupling slippage is a huge issue with the lower cost clamp types. However you wouldn’t hear the slippage thus there was or could still be lubrication or binding issues. In any event considering...
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    Re: 1st Build, will this be a decent Design?

    When powering stepper drives simple power supplies are OFTEN better but not always. The reality is you just need a transformer, rectifier and filter cap for most drivers. Just make sure the supplies...
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    Re: Fixed Gantry Build

    Looks like you put a lot of thought into this. I have a few comments to ponder!


    First Mach 3 is getting very old and has been unsupported for a very long time now. There are many options...
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    Re: Motor Coupling Question

    My experience with these types of clAmping couplings is that they are basically crap without additional slippage prevention!! This is the result of work in industry on custom machinery and factory...
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    Re: 1st Build, will this be a decent Design?

    You have gotten a lot of good advice here but the one point that has to be stressed is that you need to know and understand how your expectations impact the machines design!!! It isn't enough to...
  12. Thread: Drive help!!

    by wizard
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    Re: Drive help!!

    You have said little about the machine you actually built. This is a huge factor as to what will be suitable. A beginners wood framed machine might not benefit from higher end controls.

    I’m...
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    Re: How Do You Tram Your Router - Wood Build

    There are so many ways to square up a machine that all one can really say is that it depends upon the basic design of your machine. From my perspective you start from the bottom and work up. Get...
  14. Re: Gantry dual servo motor with absolute encoders

    How is it that absolute encoders eliminate the need to home an axis? I guess the answer depends upon the type of encoder. There are various approaches to absolute encoders that may or may not...
  15. Poll: Re: Users in dialogue - Is a DIY machine worth it or are branded products always the

    Every bodies experience will be different.


    Or maybe the builder didn’t have the background to successfully use the manual and assemble the kit! Let’s face it every one of us has had...
  16. Poll: Re: Users in dialogue - Is a DIY machine worth it or are branded products always the

    The problem with questions like this is that your answers will fall over the place due to different needs and expectations. There is no doubt in my mind that one can build a decent machine for...
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    Re: Bent X ball screw?

    This is good news! Sometimes it is hard to find these random catches or jams. If the ball nut and screw are new and you didn’t find any significant contamination you may have a problem with one...
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    Re: Why did this happen?

    There is always the possibility of a manufacturing defect in the cutter, it doesn’t happen often but it can happen even to brand names.

    Unfortunately you didn’t take photos as that certainly...
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    Re: Bent X ball screw?

    I couldn’t see anything in that video but realize I’m on a cell phone at the moment.

    To answer your question, yes a bent ball screw can cause problems.

    Generally if you are having stalling...
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    Re: collets off from amazon

    My personal opinion is that Amazon is the wrong place to be searching for collets if you don’t know the vendor and the supplier they are using. The reason here is simple, there is a lot of crap...
  21. Re: Need simple DIY CNC machine my son and I could build?

    Part of the answer here how well equipped are you shop wise. T-Slot kits are great for people with little tooling or machinery. Beyond that I find the hard to recommend. Mainly because they are...
  22. Re: How is everyone building a DIY CNC router system that maintains cutting tolerance

    I’d take it even a bit further and say most DIY machines will never be “precision builds”. It is very difficult to achieve tight tolerances with the equipment the average home builder has access...
  23. Re: How is everyone building a DIY CNC router system that maintains cutting tolerance

    The laminated wood stocks I know about are not plywood. Plywood is a different animal with alternating plys peeled from a log. I don’t shoot in competitions so can’t say much about that. What...
  24. Re: How is everyone building a DIY CNC router system that maintains cutting tolerance

    One of the biggest issues small has me shops face when retrofitting a mill or using items like the table you linked to is material handling. Even a small bench top mill can leave people struggle with...
  25. Re: Working man with goal - open floor - stone tile portable cnc

    Wish I had experience with machine stone but I don’t so all I can offer is more general ideas or points.

    The first thing here is that you can build whatever you want, the trick is to get the...
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