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Type: Posts; User: johnsontoddr

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    Downloaded a GWizard trial and it also says I was...

    Downloaded a GWizard trial and it also says I was way too aggressive. It recommended 10001 RPMs at 0.79 ips with a 0.25" depth of cut. That was at 25% finish on the Tortoise Hare Slider. A test cut...
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    Just to follow up with this, here is the test cut...

    Just to follow up with this, here is the test cut I did tonight with the Onsrud 52-367 on a scrap 2x8. I did a conventional cut at 12500 RPM and 4 IPM with .5" depth of cut. This gave a calculated...
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    &my_hasZProx was set to 0 in my_variables.sbc ...

    &my_hasZProx was set to 0 in my_variables.sbc

    Just to be sure I didn't do anything wrong, I reran all of the initial set up files. That still didn't change the variable to 1. I then edited the...
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    Tom: Thanks for the clarification. Should the Z...

    Tom: Thanks for the clarification. Should the Z zero routine still stop at about 1/2" above the z zero plate, or should it continue to max Z and then lower as Scott mentioned above?
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    With a 1.5" length of cut can you cut down a...

    With a 1.5" length of cut can you cut down a little lower than 1.5", assuming the bit extends from the collet a bit more? I tried to look this up, but could not find a clear answer.
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    Scott: The machine now stops when the Z prox is...

    Scott: The machine now stops when the Z prox is reached. However, the Z-Zero routine just stops at Safe Z, so the control software clearly doesn't think the Z prox is there. I will keep debugging....
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    Thanks Scott. You are correct. I have the Z Prox...

    Thanks Scott. You are correct. I have the Z Prox and when I raise the spindle up to near its limit, the switch triggers input 3. However, in Shopbot setup I do not have an option for telling SB3 that...
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    I don't have a z proxy switch, though I do have...

    I don't have a z proxy switch, though I do have the cut out bracket that could easily take one. I'll be sure to carefully set the safe-Z pullup to end above the material. I will try an air cut...
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    Very good points. I use Fusion 360, which allows...

    Very good points. I use Fusion 360, which allows me to set a clearance and retract height, but I'll also need to be sure that the Home point set in the Shopbot app can handle the longer bit. A 2x8 is...
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    Ordered Onsrud 52-367 4" long 1/2 inch dia

    Thanks for the suggestions. I raised the spindle up to near max Z with a 2.5 inch long compression bit installed (the longest I have). It looks like there is plenty of room for the 4" long Onsrud...
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    The problem is that I'm not sure what length and...

    The problem is that I'm not sure what length and width bit I should use. I assume a .5 inch diameter bit would be better to help with deflection, but I'm not sure how long an overall bit I can use in...
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    Bit for 1.5” length of cut in 2x8

    I’m looking for suggestions on what bit I can use to cut a decorative end pattern on a 2x8 using my Desktop Max. I have the starter bit set, but it doesn’t look like I can cut that deep with any of...
  13. Don: will the climb cut at the stock perimeter...

    Don: will the climb cut at the stock perimeter automatically leave 1/32" due to the physics, or should I create the toolpath to leave a 1/32" skin then finish that with a second conventional cut at...
  14. Great discussion. Thanks for all the feedback. I...

    Great discussion. Thanks for all the feedback. I had been getting clean cuts on both sides of BB with a downcut bit, but lately I've been getting a lot of tearout on the bottom face. Either the bit...
  15. I just reviewed this ShopBot video on cutting...

    I just reviewed this ShopBot video on cutting plywood by TJ Christiansen (https://www.youtube.com/watch?v=XteEyLYvtXA). He also recommends 2 in/sec and 12000 rpm for the 60-113.
  16. The Onsrud 60-113 is a mortise compression bit...

    The Onsrud 60-113 is a mortise compression bit with an upcut flute length of .188 inch. I'm using it to countour (I think vcarve calls this a profile cut) two fairly large shelves for a monitor stand...
  17. Feed and speed for Onsrud 60-113 Compression Bit in Baltic Birch

    I'm about to cut half inch (0.472 inch) baltic birch on a Desktop Max using an 1/4" Onsrud 60-113 two flute compression bit. According to Onsrud the chipload should be .015-.017 for soft plywood and...
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    And to update this, the new board fixed the...

    And to update this, the new board fixed the problem. With travel and work I had not been able to fully test the machine until yesterday. It flawlessly cut an entire sheet of 12 parts. Replacing the...
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    Just a quick update: after going through a number...

    Just a quick update: after going through a number of steps with ShobBot support today, they are sending a new controller board and card for me to try.
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    No. That was something I tried early, but I went...

    No. That was something I tried early, but I went back and tried it again. I've also noticed that the z-axis plate is no longer turning on input 1.

    Todd
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    I've tried that and more. I just deinstalled the...

    I've tried that and more. I just deinstalled the software and then searched for every instance of the shopbot software I could find and deleted it, reinstalled the latest, reinstalled the firmware....
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    Update: I tried downgrading to my initial install...

    Update: I tried downgrading to my initial install of the ShopBot software, but that didn't solve the issue. I then installed the latest version, update the firmware in the control board again and now...
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    Shopbot will not respond: Input 4 is on

    When I tried to cut a part today, my Desktop Max drove into the lower X stop position and started grinding so I stopped it. After that I've had nothing but trouble. At that point I could move the...
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    I haven't tried importing Fusion 360 into Vcarve...

    I haven't tried importing Fusion 360 into Vcarve pro to generate toolpaths, but I did load the same .dxf file for CNC clamps into both Vcarve and Fusion 360, then used the same feed and speeds in...
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    Just curious if anyone has done this yet. I've...

    Just curious if anyone has done this yet. I've only had my Shopbot for a couple of weeks, but last night I cut my first Fusion 360 parts after hours of watching videos and playing with the...
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