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Type: Posts; User: blitzer

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  1. Replies
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    Re: New 2x4' router build

    It is a mix of steel and wood for strength and vibration absorption. Would have preferred a big weld up job, but I don't have a rig for that.

    Like the attached image but with an extra steel...
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    Make that base as heavy and rigid as possible. ...

    Make that base as heavy and rigid as possible. Filling it with lead will help with allowing you higher acceleration. I am adding weight to mine.

    I was you a year ago. Exactly same situation. ...
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    So many uninformed shills here. Especially for...

    So many uninformed shills here. Especially for uccnc
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    Re: Centroid Acorn experiences?

    I read up a lot on Acorn vs mach3 vs UCCNC etc. Feedback with Acorn was that it just worked...period. No caveats, not excuses, no extra drivers, no special circumstances, no ... "why is it doing...
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    Re: Vibration at certain speeds

    Not too big 1232oz
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    Right now at 10,000, started with 2000 then 3400,...

    Right now at 10,000, started with 2000 then 3400, 4000, 6400, 10,000. Nothing seemed to change
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    Re: Vibration at certain speeds

    I am running the following:
    - Centroid Acorn Board - with Centroid interface
    - Nema34 steppers -
    --- Voltage: 3.08V
    --- Current: 5.6A
    --- Resistance: .55
    --- Inductance: 5.5
    --- Detent...
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    Re: Vibration at certain speeds

    Seems to be acceleration independent - only the speed after the acceleration is what determines the vibration. Of course if you accelerate through the vibration zone....there are vibrations.

    The...
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    Re: Vibration at certain speeds

    You mean the amperage from the stepper drivers to the motors? Turn that down? Right now they are at the highest settings - but well within what the motors handle. This is easy to change, I will...
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    Vibration at certain speeds

    I have excessive vibration with certain speeds maybe 30-40 ipm. The vibration is loud and causes non-smooth curves - not to mention loud when jogging around. Tools vibrate off spoil board type of...
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    Re: CNCRP 48x48 Pro for machining aluminum?

    The end shows the finish.. This is 2 revisions of the pro4848 back. Much better now.

    https://youtu.be/ovzT-3AAWIU
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    Re: PRO4824 - Teenager Build

    I'm sure we could all speculate for days. It's a Ford vs Chevy thing. There are many people out there claiming that UCCNC is better than the Acorn and many people claiming that Acorn is better than...
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    Re: PRO4824 - Teenager Build

    So, first off. I am a noob and this is a hobby for me so don't have anything but about 8 months of learning and observation behind me.

    I have been in the computer business for 30 years have have...
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    Re: PRO4824 - Teenager Build

    Can one expect the drop lock to be uniformly bent in along the length of the extrusion? Just from looking at the profile the drop lock seems bent in from the top and bottom unevenly. The aluminum...
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    Re: PRO4824 - Teenager Build

    Acorn has Independent Axis Squaring as well. From what I have seen, Acorn seems to be much more industrial grade, refined and mature because they are trickling down technology and UI interface from...
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    Re: PRO4824 - Teenager Build

    I have figured out the issue with the movement of the gantry. Gary was right above - the drop lock of the extrusion was uneven and the rails are not wide enough to pull them flush. So, I ended up...
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    Re: PRO4824 - Teenager Build

    I have since bought the Centroid Acorn and it works perfectly so far. I have just completed a bench test and am currently installing the Fuchs limit sensors. Of course it can slave two axes...
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    Re: CRP4896 Standard to Linear Rail Conversion

    Wow, perfect space for it. What do you do for dust collection?
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    Re: PRO4824 - Teenager Build

    Thank you for the reply. There just in not much else it could be that I can find. I have flipped the rails and flipped the linear blocks just to have the same issue in the end. The gantry plate...
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    Re: PRO4824 - Teenager Build

    Turns out the aluminum extrusion for the gantry is not very uniform. So the faces of the linear rails are not perfectly parallel - this means the faces of the linear bearing are not parallel. This...
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    Re: Acorn CNC PC requirement

    Do people STILL get computers from 10+ years ago with old operating systems prone to crashing to run CNC machines costing $3000-15,000? Mach 3 just needs to die. This is why I went the Acorn route....
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