Howdy.. I am modifying my bridgeport milling machine again. I am running a copy of turbocnc. Wanting to install a Opto-22 pamux ac28 parallel address card. It...
I am new to the fascinating cnc world and would like some help please. I have converted my old richmond no1 mill for cnc. There is backlash on both the...
Martin, Backlash compensation via software is not, by any means, a robust solution to a machine that has backlash. It is a band-aid at best. When milling ...
Hi All, I do not have an auto tool changer. I need to change tools by hand and this can throw off all axes. I need to re-home all axes. I need to restart the...
Dear Users, I have no experience in G-coding so any body can tell me about G- codes in detail and how I can use these codes in g-code file (G16 Set implicit...
Hi Phil, I change tools by hand thought I do not have the issues you seem to have with homing. Do you have some switches installed? Maybe I don't have problems...
The problem is, the cutting tool can pull or push the axis by the amount of the backlash. When doing a hole, you can change your approach to compensate for...
Hi Owen, Yes, I have home switches. But the Z is homed by passing current through the tool to a grounded reference of known thickness. When the tool hits the...
Hi Owen, Yes, I have home switches. But the Z is homed by passing current through the tool to a grounded reference of known thickness. When the tool hits the...
many thanks john i will give that a try. martin uk ... approach ... approach ... 9 ... o'clock. ... cutter ... can ... slack. ... it. ... please. ... backlash ...
Since a tool swap generally means that only the Z location changes, have you thought of moving your tool to a known position prior to swapping tools, then...
I'm with Jerry on this one. It is worth the effort to sort out some form of tool registration system. As I said in my earlier reply to you I calibrate my tools...
This evening while playing around setting up TurboCNC. I input a simple one line code I.E. G00 X4.9792 Y3.3323 Z0.0. Thinking this would send the cutter head...
Neil, I "think" what you wanted was an interpolated move to the final point rather than a fast move. Try: G01 X4.9792 Y3.3323 Z0.0 and see what you get:}) ... ...
Far as I know G00 drives each axis involved in the move at maximum slew rate. This results in an un-coordinated move where each axis will go up to, but not to...
Hi, Neil: Your code should send the head in a straight line from the current location to the target that you specified. Rel 3.x does not have any option to...
... Rel-4 goes either way, depending on how you've configured it. Rel-3 usually makes an interpolated move for G00 at the "max speed" of the lowest axis. --...
Thank you all for your feedback. This group has been very helpful in my CNC quest. Tool change by hand is a drag with random lengths. If only homing the z...
Hello, I recently started experiencing a problem while pocketing that has not been noticed in the past. The issue is when z is at full specified negative...
Try this: Set up a 'sacrificial' touch-off block ( I like aluminum) at exactly the same height as your Z0. (Assuming that Z0 is workpiece 'top-of-steel', you...
... Z+?, X?, ... your new ... the new ... that point ... press ... make ... The other nice thing about touching off on metal, is that you can set up a...
Thanks again. Yes all input is very helpful. What you describe is almost what I am doing. However I am using the continuity to drive the Z home switch throrugh...
I am still trying to dial in a home brew CNC mill (HF mini mill, and hobbyCNC driver). One issue that keeps nagging me is that the movements seem to be ...
I am a 'keep it simple' kinda guy. I use a small hand router that is clamped into position using a concentric clamp which allows vertical adjustment. I...
OK... I thought about that and gave up before I started... A metal part in a metal vise on the metal table of a metal mill holding a metal tool in it's metal...
John, Your problem is probably backlash. Alas, backlash compensation helps if everything is cutting in all the right directions. But it doesn't actually...
I am machining plastic, but a metal ref (sheet metal) with a thin film of plastic (like tape) would work nicely. Like the post before, I too seem to running a...
... Yeah, if you have an actual mill, there's probably going to be continuity anyway. However...if you look in the photos, and around the web at the machines...
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