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Type: Posts; User: steve323

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    Re: Spur gear tooth profile

    Involute gear cutters need slightly different cutters as the number of teeth changes. The tooth profile might be similar, but you are cutting the space between the teeth, instead of actually cutting...
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    Re: 220V spindle on 110V?

    I see what you mean about limited options. I looked further and see mostly 800W 120V ER11 spindles or 1500W 240V ER16 spindles. Maybe you have to decide if ER16 is that important to you, then you...
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    Re: 220V spindle on 110V?

    So if all you need is 750W at 120V with ER16 collets, then why not just buy an 800W 120V ER16 spindle. Do a search and several choices should be available. Most inverters appear to be 240V, but a...
  4. Re: X-Y axis Square: How square is square enough?

    The importance of being square is dependent on what you are making. Signs and cutting boards can be a long way out of square before it matters. Clock gears are a lot more important to be square,...
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    Re: XBox one controller

    There should be minimal risk as long as you are cutting chips and not burning it with a laser.

    Steve
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    Poll: Re: How fast is your homemade CNC?

    I was at 60ipm rapids and 40ipm cutting with my original 10tpi acme machine and HobbyCNC controller. It would sometimes stall cutting and I would back off to 30ipm.

    I switched to 5mm ballscrews...
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    Re: XBox one controller

    I don't see any problems. What are you trying to do exactly? Cut your name into them so you can identify yours? They are cheap enough to just try it and see how it goes. The worst case is that...
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    Re: Lightweight Spindle

    Maybe a 500W spindle would be closer in weight to the 5A 600W Ridgid router. They appear to typically be 52mm diameter, compared to 65mm or 80mm for the 800W spindles.

    Steve
  9. Thread: Cutting Brass

    by steve323
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    Re: Cutting Brass

    One other option for a sheet like you are cutting is to treat it like a piece of plywood and add tabs to each shape. Secure the perimeter with screws. It might also help to add 1 or 2 screws in the...
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    Poll: Re: What is your Favorite 3D CAD Program

    TurboCAD

    I started with it about 10-15 years ago and it seems fairly easy to learn for a low cost program.
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    Re: Drawing with a CNC

    Hi OmriBig,

    I know this post is old, but I just stumbled on it and hope you can answer a few questions. The drawings are extremely cool.

    What software did you use?

    Did you have any feedback...
  12. Re: anyone make an caulk 3d printer? (silicone caulk with sped up cure using water)

    Or if you really feel like trying different materials, how about using a hot glue gun. It hardens much quicker than silicone. There are many types of hot glue. Some are more flexible than the...
  13. Re: Cutting Wodden Clock Gears with a Small CNC Router?

    There are many websites that sell plans for wooden gear clocks. Most recommend Baltic birch plywood, although some people use solid or segmented wood. Here is a closeup of some segmented gears cut...
  14. Re: Capacitor calculation for toroidal transformer and rectifier bridge

    As Al mentions, the primary concern is the quality of the output signal.

    This is a somewhat standard AC to DC power supply, although the currents are quite large. The bridge rectifier converts AC...
  15. Re: Huanyang VFD, activate relay when running below predefined RPM?

    I like this idea the best. The fan is needed when temperatures rise, not simply because of RPM. I haven't looked for a solution, but it seems like it might be simpler. There might be a ready made...
  16. Re: Makita trim router on 3040 CNC. My take on the process.

    Looks good. The Makita router seems to get good reviews. And it should be easy to replace if you wear it out. It might be a good idea to keep a spare set of brushes if you use it a lot.

    Steve
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    Re: Ballscrew backlash

    Searching for a loose component would also be my first plan of attack.

    If it turns out that the ballnut is actually worn, then it may be possible to re-pack the ballnut with slightly larger...
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    Re: Mach 3 DIY machine loosing steps

    We need a lot more information about your machine to debug a problem. All we know is that you have a Gecko controller, Mach3, and ball screw on the Z axis. All these are expected to operate quite...
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    Re: STL to CAD files

    As mentioned previously, TurboCAD (and possibly many other CAD programs) can import STL files. The scale may be off it it was drawn in mm and loaded in with inches. That is easy to fix. If the...
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    Re: Machining Muscovite Mica

    Can you use air cooling?

    Steve
  21. Re: anyone make an caulk 3d printer? (silicone caulk with sped up cure using water)

    Interesting idea. What is the cure time of silicone caulk with a water mist? A typical 3D printer can print another layer after a very short cure time, something like 1 second. It would take...
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    Re: Scaling clock plans?

    Welcome to the forum.

    You may already know this, but mechanical clocks are conceptually very simple. They have a power source that turns a gear train, and an escapement that slows the gear train...
  23. Thread: Depth error

    by steve323
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    Re: Depth error

    The video looks like normal operation of Photo Vcarve. It carves deeper in the dark spots of the image.

    Maybe try adjusting the start and stop depth so the lightest portion is just below the...
  24. Thread: Depth error

    by steve323
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    Re: Depth error

    If the Z axis is not losing steps, it could be a bed leveling issue. Try clamping down a sheet of MDF or cheap plywood and run a flat router bit across the entire surface. Then see if an object...
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    Re: oval cribbage board

    That is very nice looking.

    Did you drill the holes with a router bit? Or would it be better to use a brad point drill bit with lower RPMs? Your holes appear very clean straight off the machine. ...
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