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Type: Posts; User: SteveC68

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  1. Replies
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    New JGRO build

    And so it begins. After what seems like forever I have finally started my build. This is a father/son effort and due to an impending plant turn around beginning mid February my updates might be...
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    JGRO Assembly video

    Just stumbled on this on youtube and thought it was pretty cool.

    https://www.youtube.com/watch?v=b-nDTD_mHiM
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    Will these stepper motors work?

    I have the HobbyCNC 3 axis Pro board and was wondering if these steppers are compatible.

    https://www.omc-stepperonline.com/download/24HS39-3008D.pdf

    Steve
  4. Re: Flanged bearings on the lead screws. What is everyone using?

    I ended up buying these. $5.35 for a pair.

    https://www.ebay.com/itm/Qty-2-FR8Z-Flanged-Bearings-1-2-X-1-1-8-FR8-ZZ-USBB/371525727943?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
    ...
  5. Flanged bearings on the lead screws. What is everyone using?

    So I just purchased some 1/2-10 5 start lead screws off of ebay. What is everyone using for the flanged bearings on the lead screws?

    Steve
  6. Re: Anyone have any experience with the "A Quick CNC"?

    I was thinking about using this on a JGRO machine.

    http://www.cnczone.com/forums/jgro-router-table-design/

    with these steppers.

    Nema 24 Dual Shaft CNC Stepper Motor 3.1Nm(439 oz.in)...
  7. Re: Anyone have any experience with the "A Quick CNC"?

    So you would loose roughly 30% of holding torque then? Is that the only real drawback to a unipolar system?
  8. Anyone have any experience with the "A Quick CNC"?

    Their forum seems all but dead, however they still sell the kit version of their 3 and 4 axis controller on their website as well as ebay.

    CNC Hobby Kits and Parts - A Quick CNC

    I can find...
  9. Has anyone made this Instructables stepper motor driver circuit?

    If you've built this circuit how well did it work? If you didn't build this circuit but are knowledgeable enough to talk about it what do you see as its limitations?

    Well as soon as I posted this...
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    As best I can tell the links to the files for...

    As best I can tell the links to the files for this router as posted by HayTay in posts 283 and 302 are no longer working.
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    Does anyone use DevCad?

    I have DevCad learning edition and haven't been able to find any tutorials or guides. Even a search here on CNC Zone came up empty. So does anyone have any experience with DevCad?

    Thanks,
    Steve
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    No not really big patterns. Mostly letters and...

    No not really big patterns. Mostly letters and national markings. The letters would be about 3 to 4 inches tall and national markings would be a little smaller.
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    Vinyl paint masks (what type of vinyl?)

    I want to cut my own vinyl paint masks for RC airplanes. I'm looking for a vinyl that has a very low tack adhesive backing so that I can place the mask on an already painted surface and not have to...
  14. I guess what has slowed my search is I didn't...

    I guess what has slowed my search is I didn't know what the process was called. So I will start searching for forced injection molding.

    Let me know what your brother tells you funscan.

    Steve
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    Another new free wire foam cutter software

    Here is a new cnc wire foam cutter program. It works with the HobbyCNC board, but I'm not sure about any other boards.

    http://www.stealthplaneworks.com/FoamCutter.aspx

    Steve
  16. Looking for more into on tooling/mold for EPS shapes

    I'm trying to find information on the tooling that is used to make EPS foam shapes. Like these.

    http://www.rcgroups.com/forums/attachment.php?attachmentid=1391821

    The tooling for that plane...
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    How about these Power Supplies? Only problem is...

    How about these Power Supplies? Only problem is they are non adjustable output. However if you run a board with heat control like the HobbyCNC Foam Pro or the MM2001 and use either GMFC or Jedicut...
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    I know what you mean about a bent lead screw...

    I know what you mean about a bent lead screw fixed at both ends. I built sort of a really dumb CNC laser scanner which is basically a bearing at one end and an electric motor at the other end of a...
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    I've been looking at the JGRO for some time now,...

    I've been looking at the JGRO for some time now, and will probably build one after I finish my CNC foam wire cutter. I have a question about the gantry uprights. On both sides of the gantry there...
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    Try the power supplies on this page. ...

    Try the power supplies on this page.

    http://users.belgacom.net/hamradio/homebrew.htm

    There is an 18V 4 amp DC supply that looks pretty easy to build. You have to scroll down on the left side...
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    I plan on buying a power supply already built. ...

    I plan on buying a power supply already built. You can get an excellent power supply on ebay. Just search for Mastech power supply. You need at least 5 amps. If you want to build a good power...
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    I built that power supply about 2 months ago and...

    I built that power supply about 2 months ago and it cannot be done for the $30 that the author claims. A few of the parts are no longer available at Radio Shack. Also the transformer listed is only...
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    Check out the pictures in this thread. ...

    Check out the pictures in this thread.

    http://www.cnczone.com/forums/showthread.php?t=18613

    I have already purchased a CNC board kit and stepper motors from HobbyCNC. I also bought some 1/2"...
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    Question about a regulated power supply

    I was doing a web search for power supply schematics and came across this website:

    http://users.belgacom.net/hamradio/schemas/6-20amps_regulatable_powersupplies_on6mu.htm

    I'm not sure I...
  25. Thread: It works!

    by SteveC68
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    Sleedo, Where did you get the little plastic...

    Sleedo,

    Where did you get the little plastic fitting that goes on the shaft of your steppers? I like the plastic hose coupling, but I will need that little plastic part to make it work.
    ...
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    Computer with no Parallel/Printer port?

    If your computer doesn't have a parallel/printer port is there a recommended PCI add-in card that people are using that works with minimal fuss?

    Thanks,
    Steve
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    I am using .018 inch, but I see a lot people...

    I am using .018 inch, but I see a lot people using between .016 and .020 inch. I have a 115V to 25.2V, 2 Amp step down transformer. My AC voltage going into my transformer measures 124.9 and I'm...
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    That's what I needed to know. I built a foam...

    That's what I needed to know. I built a foam cutting power supply already so that's done. It uses a 25.2 volt 2 amp transformer.

    How do you run your tensioned hot wire? Do you have your...
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    I looked at the Bob Campbell Designs web site...

    I looked at the Bob Campbell Designs web site specifically at his Power Supply pdf and he recommends a DC voltage of 20 times the motors rating. I purchased the small 84oz-in motors from HobbyCNC...
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    Question about power supply for the motors

    I already built a power supply for my hot wire and just tonight I finally pulled the trigger on a hobbycnc 4 axis foam cutter package with 4 of the 84oz-in stepper motors.

    What size transformer...
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