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Type: Posts; User: wizard

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  1. Replies
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    Re: THK combined LM rail with gear rack

    Nope haven’t done that. However such a rail system should reduce alignment errors.
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    Re: Stepper Motor Max Practical Speed

    You hAve good advice here but repeating the key point you likely will never achieve the theoretical max. As noted determine the stall point then back off.

    If this is a larger router you might...
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    Re: Drag Chain Router Cable

    If you are running through a drag chain I highly recommend wire / cables rated for such use. Extension cord wire will not last long. As for the gage I’d suggest 12 ga if you are running low...
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    Re: protecting/cleaning lead screw

    You are right to be concerned about dust. One of the best things you can do is maintain the machine regularly. That is clean and lubricate the screw. Sadly the rotating screws seldom fling off...
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    588

    You might want to post pics because I’m not...

    You might want to post pics because I’m not following the description. Ball nuts vary in design so this might be a problem with the nut.
  6. Re: Where to get welded steel frame stress relieved?

    When dealing with business you need to present yourself in such a way that they will not feel like they are wasting time. To that end make sure you are prepared to pay the going rate.

    Some of...
  7. Re: Nothing Ground Breaking Just Another CNC Router Table Build

    Interesting concept that I kinda like. However I have a concern or two.

    1. I really don’t see 3” being thick enough. You will want to reinforce the concrete with rebar or wire mesh or both. ...
  8. There is no perfect approach to the spindle speed...

    There is no perfect approach to the spindle speed nor the tool change problem.

    If you look at all of the solutions to either problem that have been applied to R8 (Bridgeport as an example)...
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    Re: Homemade fixed gantry build

    Wow this is awesome! Looks like you are well on your way.
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    Re: Z axis question. Please help

    I would go for it as is. As noted ball bushings are not as rigid as some other choices but on the other hand they are worlds better than some DIY solutions I've seen. It sounds like the slide is...
  11. Re: Limit Switch False Triggers - Installing Resistor and Capacitor

    are you running shielded cables? That is the first thing I would consider and your drawing doesnt make that clear. I don't know a lot about the I/O port on this board but adding series...
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    Yeah I probably wasn’t clear on that, simple...

    Yeah I probably wasn’t clear on that, simple vacuum systems will not pull down that far. Even though I said substantially less I’m pretty sure people don’t realize how much less it can be.

    I...
  13. Replies
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    5,244

    Gee I hope I didn’t turn you off to vacuum...

    Gee I hope I didn’t turn you off to vacuum fixturing completely because it can have a use in a production environment. The problem is it has to be carefully considered. Sometimes it might even pay...
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    Re: Z axis question. Please help

    It will work but the question is will it give the results you want. It looks like the round rails are fully supported if so that is a good thing! If not it would be best to use this on a very...
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    It isn’t suction per say it is air flow that...

    It isn’t suction per say it is air flow that makes the difference. This is why dust collection systems specify performance in CFM’s. Obviously you need a pressure differential to get the air moving...
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    Probably the most accurate statement I’ve seen...

    Probably the most accurate statement I’ve seen about dust collection in years. You need air flow for these things to work. To an extent you need the right air velocity which is why the size of the...
  17. Replies
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    5,244

    Re: Another Vacuum Table Question

    You have gotten some good comments here but I have a few to add.

    1. No matter what it says on the vacuum cleaner you can’t get 5HP out of a 15 amp 120 VAC outlet.
    2. Leakage and slippage...
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    Re: Solsylva Website Inactive

    The eMail or the web site not being active? It never hurts to try an E-mail.

    If your interest is in a wood framed router you may have to look at other designs for inspiration or prints. ...
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    Re: Are these parts suitable for cnc router

    IPhone8.

    I didn’t get past the first 7 minutes (busy today) but that video highlights one thing, that is all the misc. items you must buy.

    One thing worth noteing is that you will need a...
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    Re: Designing a new router called Brevis-HD

    Hi Pete.

    I guess the first thing that comes to mind is how do you define a bench? The short X axis and long Y bother me, this especially with the thin gantry beam. Of course if the goal is...
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    I don’t have the time to look up that drive but...

    I don’t have the time to look up that drive but I’m not really sure I’d go this route. Much of what one buys depends upon ones budget and ones expectations. If the goal is cheap go with a good...
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    Re: Kim's - BTW 4x8 CNC Build

    Wow! I’m not even pass the first page and I have to say nice work, this is a beautiful build so far! By the way your welds look awesome, professional?

    As for the epoxy leveling could you...
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    A good portion of the machines I never heard of...

    A good portion of the machines I never heard of before! That right there caused a bit of wonder as it sounded like an attempt to market new machines.

    As for desktop engraver, even here a well...
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    Re: Computer to run Linux CNC

    I was under the impression that Linuxcnc was x86. There are variations such as MachineKit but I believe they are taking a slightly different approach. I could be wrong about this as I haven't...
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    Re: Control Cabinet EMI RFI Glands and Clips

    It really depends upon the cable and how it is being used. For example some of the servo drives, even some stepper drives, provide for a clamping area to terminate the cable right at the drive. In...
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    Re: Small Desktop Router for Leather Molds

    Interesting thread!

    I suspect that I will have to agree with others that a CNC router might not be the right choice. I’d seriously consider going the CNC mill route.

    Why? Well there...
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    Re: Roco home switches

    It will depend upon what you are booking the switches up to. Frankly this can be a bit confusing! Here is one explanation:...
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    What you will need coolant wise depends a bit...

    What you will need coolant wise depends a bit upon the aluminum alloy as some are worst than others when it comes to sticking to the.cutter. That is one of the primary failure modes in aluminum,...
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    Re: Budget Spindles...where to start?

    Ihavenofish points out an important point with respect to much of the Chinese produced machinery. That is specs for horsepower are often input power to the system. In some cases it amounts to...
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    I’m having real problems with this post. I...

    I’m having real problems with this post. I can’t imagine any human stretching timing belts by applying force to them. At least not timing belts of a size reasonable for a router. I work on...
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