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  1. Replies
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    That's perfectly fine woodPixel discussion and...

    That's perfectly fine woodPixel discussion and ideas are great for coming up with new and improved ways of doing things. So far I have an idea, but I think it will take some prototyping and testing...
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    OK was just thinking of posting the G-Code if you...

    OK was just thinking of posting the G-Code if you want to copy the design when done.
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    Since it is feeding out both sides 180 degrees...

    Since it is feeding out both sides 180 degrees apart I actually think it would nearly be impossible to create too much pressure. He's my thinking... in the original housing there is probably 280...
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    Thanks Bob I spotted that too when I pulled the...

    Thanks Bob I spotted that too when I pulled the one in the shed down. So I redrew it. Also included square ends since it will go in a cupboard and be attached to three walls.
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    In between doing other things I knocked up this...

    In between doing other things I knocked up this model in SketchUp. Top and bottom would be easily made on the CNC and probably the inside pieces as well. Would probably want to pull the current...
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    This doesn't look like it would be too difficult...

    This doesn't look like it would be too difficult to make something like this. In fact it may be easier than trying to modify the existing housing.
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    Bob I have a fairly sizable CNC machine so I...

    Bob I have a fairly sizable CNC machine so I could cut out a double bag enclosure without too much hassle, do you have any internal drawings of your design idea?

    Pete hard to say but we have...
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    Dust Mite I have procrastinated and...

    Dust Mite I have procrastinated and procrastinated until I think I have run out of excuses to make. I haven't used the CNC in 12 months since my last water pump died. Sick and tired of being slack I...
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    DC-7 3HP Mods

    Time to revisit an old project that never really made it off the ground due to lack of space. Now before I start please no lectures on 3HP isn't enough to suspend the dust, etc, etc, etc, I know it's...
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    Phil I am only using a 5mm pitch on my Z axis...

    Phil I am only using a 5mm pitch on my Z axis (2005) as you don't even need to move super huge distances, but you do want super fine resolution.

    For the Y I am using 2510 and on the X I am using 2...
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    This one seems better at 6.5...

    This one seems better at 6.5 http://www.aliexpress.com/store/product/New-CNC-Kit-1-Axis-Nema34-Stepper-Motor-WT85STH151-6004A-1200oz-in-driver-DQ860MA-7-8A/511874_583920919.html
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    Yeah but to move and stop all the steel Phil is...

    Yeah but to move and stop all the steel Phil is going to need some serious torque.
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    Here you go the big brother to my kit. I bought...

    Here you go the big brother to my kit. I bought my kit through this mob. Same motors (but bigger) Same controllers (but bigger) same PSUs (but bigger) I am happy with mine. If I was t step up my kit...
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    I bought a similar setups from eBay and...

    I bought a similar setups from eBay and Aliexpress http://www.aliexpress.com/item/Cheap-CNC-Wantai-2-Axis-Nema-23-Stepper-Motor-Dual-Shaft-57BYGH115-003B-425oz-in-Driver/658270552.html but probably...
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    And here I was thinking mine was over the top...

    And here I was thinking mine was over the top crazy heavy at about 250kgs all up... Still trying to work out what the final design will look like, but watching with interest.
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    If you want advice best to start your own thread....

    If you want advice best to start your own thread. As for Mach 3, you can download it from the Mach 3 website for nothing (don't get it from China, get it from the manufacturer virus free) you can do...
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    Cant find the video but I do I have photo. See...

    Cant find the video but I do I have photo. See attached.
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    My account got all screwed up and I accidently...

    My account got all screwed up and I accidently deleted it. Will try see what I was uploading and re upload it.
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    Finally the rain stopped and I got chance to test...

    Finally the rain stopped and I got chance to test the spindle speed yesterday. Seems the VFD reading is about half of the actual speed.
    Running the VFD at 200Hz it the tach showed a reading of...
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    Hey Peter, if your just using a scaled up version...

    Hey Peter, if your just using a scaled up version of what he is using you should be fine with the NEMA23, although not sure about the sizing. The Gecko 540 are supposed to be fairly decent motor...
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    Hey Peter, like you I started off making best...

    Hey Peter, like you I started off making best guesses because I had never even seen a CNC in real life before I decided to make mine. I met a guy who built one using a rack and pinion system and I...
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    The reason I mention it is because everything is...

    The reason I mention it is because everything is fine I theory until you actually do it. I am using the biggest NEMA 23 there is (about 540 oz) and I am currently wondering if even they are big...
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    I use the UC100 http://cncdrive.com/UC100.html...

    I use the UC100 http://cncdrive.com/UC100.html for USB to parallel conversion, which is compatible with Mach 3 but not Mach 4.

    Are those motors big enough? how big is your cutting area?
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    Ok I think the compensation sussed... I put...

    Ok I think the compensation sussed...

    I put the pencil in and drew 6 x 100mm squares, two with comp off , two with comp left, and two with comp right. I told the software I had a 20mm bit in for...
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    Good idea, the pencil line will be thinner for...

    Good idea, the pencil line will be thinner for more accurate measurements. I don't have changeable tools so don't have to worry about tool offsets at the moment. I would like an auto changer down the...
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    I used the "right" setting and on a 310mm width I...

    I used the "right" setting and on a 310mm width I got a measurement of 312mm. What I think I need to do is do a test with no offset so it follows the drawn line with the middle of the cutter. That...
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    Under the "Cut Parameters" there is a...

    Under the "Cut Parameters" there is a "Compensation Direction" which has options of "Left" and "Right". So far I have been leaving it on Left, but I am guessing I need to change this to Right for...
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    Yes it is missing a ball screw on the left side....

    Yes it is missing a ball screw on the left side. I have been stalling fitting it since the whole Y gantry has to come apart. The ball nuts fit in between the Y axis extrusions and the ball screw goes...
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    The ball screw although high up isn't very far...

    The ball screw although high up isn't very far from the linear rail. Basically the linear rails are sitting on the top bars, then then two bearings, then the plate like the one in the video, and then...
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    Internal vs External Cut Dimensions

    Is probably a simple fix but I am somehow gaining a few extra mm on external cuts.

    I have measured all the internal measurements against my drawings and they are pretty much spot on, but when I do...
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    Might be worth swapping the motor out, just to...

    Might be worth swapping the motor out, just to eliminate it as a potential issue.
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    Same motor and controller on the Y axis and it...

    Same motor and controller on the Y axis and it doesn't do it in either direction, so thinking it isn't hardware related, it could still be related to the unsupported X axis, but don't know why it...
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    Yep that's right the chatter was still towards...

    Yep that's right the chatter was still towards the camera coming the other way, which suggests that my initial thought of it being related to position furthest away from the X axis ball screw was not...
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    Chatter in one direction

    A pic says a thousand words, so here is a video to demonstrate the problem https://www.youtube.com/watch?v=H7qaG4fT9qs
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    Did buy something?

    Did buy something?
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    I just bought one of these from eBay...

    I just bought one of these from eBay http://www.ebay.com.au/itm/251673653692?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT so will know one way or the other shortly.
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    Thanks for sharing that insight malb. I was...

    Thanks for sharing that insight malb. I was helping an ex auto electrician friend of mine move some stuff he other day, and on the way there I asked him about the VFD and spindle an he explained...
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    Started a new thread here...

    Started a new thread here https://www.woodworkforums.com/showthread.php?t=194079 to discuss spindle speed, appears I am only turning at half the speed thought I was.
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    Spindle Speed

    Just a general conversation about spindle speeds / VFD settings...

    I have a 2.2kW spindle and Huanyang Inverter, and I have slowly been learning how to use all the functionality in it.

    I was...
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    Thanks for the replies guys. Yes feed rates are...

    Thanks for the replies guys. Yes feed rates are definitely way off. I had a quick look through various feeds and speeds websites the other week and I am definitely running the spindle too fast and...
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    I'm a bit of a newbie when it comes to a CNC...

    I'm a bit of a newbie when it comes to a CNC (i.e. I have just built it) but I greatly suspect that some of my configuration is probably causing some of the issues I am having. For one I think I am...
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    I'm currently using it on the CNC and when...

    I'm currently using it on the CNC and when machining ply or MDF at any sort of speed it seems to create these little red lumps of material that create a fire trail when sucked up into the pipe. I...
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    Hottie Catcher

    Ok so if you're reading this thread to find out how to catch yourself a hottie, sorry you're in the wrong place, try RSVP :D (that's like a joke)

    What I would like to know is if there is something...
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    Thanks for the insight Bob, any idea where to buy...

    Thanks for the insight Bob, any idea where to buy them this side of the country?
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    Filters Vs. Bags

    Thinking ahead... I am about to build an enclosure for my Hares and Forbes DC-7 and was wondering if there is any real gain to be had by replacing the standard bag with filters, and if there is,...
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    Yep think I might ditch that whole surround... I...

    Yep think I might ditch that whole surround... I could always stick some foam to the outside to help dampen vibrations / noise.
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    The impellor / motor has a gap at the front and...

    The impellor / motor has a gap at the front and back so it doesn't directly mount on an external wall, but understand your concern.

    I have been thinking about venting the motor like this... If I...
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    You can actually have your cake and eat it......

    You can actually have your cake and eat it... Here's my CNC frame. I can still put a 1200 x 2400 sheet in it without having to cut it, but I can only cut about 900mm long per cut, by side loading it....
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    That what I come up with this morning... Since...

    That what I come up with this morning... Since the air has to exit via both filter bags I drew up a split baffle system and placed one under each collection bag. Each baffle is equal to twice area of...
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    A couple of additional thoughts occur to me... If...

    A couple of additional thoughts occur to me... If you don't have enough room on the inside of your already built DC cabinet nothing would stop you extending the baffle on the outside of the cabinet,...
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