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Post by renegade on Dec 20, 2017 14:20:40 GMT -5
Hello all- I just got my AR8+ up and running. I received my Axiom Amanatool bit set yesterday. I set up a quick .01 leveling pass in VCarve. Ran like a champ. Problem is, all of the X axis passes left a bump in the board where the middle of the bit passes. Y axis is perfect. It's super weird. I haven't hit them with a micrometer, but I'm guessing they're something on the order of .005 thick. I've attached a couple of pix. You can see a little banding on the Y-axis, but you can't feel any scalloping or ridges. But you can on all the X cuts. Any ideas? Thanks- Chris Attachments:
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Post by renegade on Dec 21, 2017 10:01:52 GMT -5
Okay, so I found the raster option in the toolpath menu and rotated it 90 degrees. All is well. Still, I'm trying to figure out why / how it can leave the grooves on X-axis cuts. My only guess is that my router is a tad out of square. Can I check this with a regular drill bit or do I need to put a more specialized alignment tool in the chuck?
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Post by gene35146 on Dec 21, 2017 11:10:09 GMT -5
The Axiom provided surfacing toolpath for the AR8 does it in two toolpaths.
Pass 1 is a pocket toolpath with the 1.25 Mortising Bit, at a cut depth of .25 mm, it uses raster for the pocket with 90.0 degrees on the rater angle and no profile pass. It uses ramp plunge moves at 1.0mm
Pass 2 is a profile toolpath with the 1.25 Mortising Bit, at a cut depth of .25 mm, it does the pass On the vector with a Climb direction, adds ramps of type Smooth with a distance setting of 6.35 mm
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Dec 22, 2017 11:11:50 GMT -5
The scallop problem is because your bit isn't orthogonal to the XY motion plane, that is your desired finished surface. There are many Youtube videos on tramming your spindle and I've written about it here in the forums before. There are special tools that go in the collet and allow an indicator to rotate on the axis and measure the error but a reasonably good result can be achieved with a bend coat hanger or another simple to make tool. In your case, the spindle is tilted around the X axis so either the top or bottom of the spindle mount needs to be moved towards the front of the machine slightly.
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Post by Gary Campbell on Dec 23, 2017 9:34:33 GMT -5
I would suggest that you use a 90* raster strategy to surface the table by traveling in the long (Y) direction. Using offset will actually exaggerate any flex or play in the system as it causes a larger than average sized bit to cut in all 4 directions.
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zaxis4
Junior Member
Posts: 162 
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Post by zaxis4 on Dec 23, 2017 14:33:52 GMT -5
Mine did the same thing. Chad says the machine has about +_ .003 tolerance anyway. The screws that hold the router mount are so tight I think damage could be done just to get them out. I have lived with it and with normal bits it is negligible and invisible. As I always say.....although it is an Axiom! It's not a Bridgeport mill!!
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Post by gene35146 on Dec 23, 2017 18:41:17 GMT -5
I would also check the step over rate if it is really large it might cause the same thing. Here is how Axiom has their default 1.25 bit setup. Attachments:
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ncsak
New Member
Posts: 7
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Post by ncsak on Jan 30, 2018 18:21:43 GMT -5
I get the same kind of ridges across the X axis when I resurface the spoil board. I made a simple Z test tool from 0.25" rod; about 6" long. End to end swing in the spindle is 12.25".
With the spindle located in the center of the work area the tip of the tool touches the spoil board at the front (6 o'clock, HHC Z axis is 75.0mm), moving tool tip to 9 o'clock
and touching spoil board gives a reading of 74.5mm, 12 o'clock reads 73.5mm, 3 o'clock is 74.0mm.
This shows that the X axis is off about 0.5mm across the 12" distance of the tool. This is about 0.0197". I think that is pretty good. The Y axis (6 to 12 o'clock) is off about 1.5mm across the
12" distance (0.0591"). Is this within spec or should I try to improve it? I have a 2" surfacing bit. If the stated machine tolerance is 0.003" what distance is that measured across?
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Post by kjw1983 on Jun 16, 2018 18:42:01 GMT -5
Can anyone tell me where to find the preloaded program from Axiom for spoil resurfacing, I'm a new at using the axiom controller.
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Post by BigMoose on Jun 16, 2018 20:26:12 GMT -5
Can anyone tell me where to find the preloaded program from Axiom for spoil resurfacing, I'm a new at using the axiom controller. If you have a newer unit they had stopped loading it on there. I contacted Chad at Axiom and he said they where trying to fix something but he sent me the file to load on the controller. I am not near my unit and wont be for a while otherwise I would share the file. Just email Chad and he should send it to you. |
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Post by kjw1983 on Jun 18, 2018 9:56:05 GMT -5
Can anyone tell me where to find the preloaded program from Axiom for spoil resurfacing, I'm a new at using the axiom controller. If you have a newer unit they had stopped loading it on there. I contacted Chad at Axiom and he said they where trying to fix something but he sent me the file to load on the controller. I am not near my unit and wont be for a while otherwise I would share the file. Just email Chad and he should send it to you. Thank You
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Post by jordandemoss on Jun 18, 2018 21:55:13 GMT -5
What kind of machining are you guys doing where spindle tilt of that amount matters?
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