Creating Two Fixture Offsets in Mach4

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Creating Two Fixture Offsets in Mach4
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In this video, I’ll show you how I made two work positions on the spoilboard of my Avid CNC 4848 Pro CNC Router, then created fixture offsets in Mach4 for those positions. First I’ll show you the file I created in Vectric Aspire to drill dowel locations into the surface of the spoilboard. I’ll then show you how I set up and drilled those holes. Then I’ll show you how I used precision ground dowels in those holes to accurately mount a piece of material. And then I’ll show you how I created a G55 and a G56 Fixture Offset in Mach4 to be able to repeatably use those fixture locations.
Finally, I’ll summarize the entire process and discuss why a person would want such a setup.
As usual, if you have any comments or questions about anything I covered in this video, please join me for the Live Q&A, or put ‘em in the comment section below.
On Sunday, March 19th, I’ll be hosting a LIVE Q&A session, where you can ask your questions pertaining to anything I’ve covered in this video. That Q&A starts at 3 pm Eastern time, Noon Pacific time. Hope to see you there!
Here’s a link to the Live Q&A: ru-vid.com...
Link to my video Introduction to Work Offsets and Fixture Offsets: • Introduction to Work O...
Link to my video on Repairing my Avid 4848 Pro CNC Router Spoilboard: • Repairing the Spoilboa...
Link to ‪@rockymountainplc‬ video on How to use GRBL / G Code G10 and G54 offsets commands with Ready Motion: • How to use GRBL / G Co...
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Link to the Vectric for the Absolute Beginner Playlist: • Vectric for the Absolu...
Link to the 3D Modeling for the Absolute Beginner playlist: • 3D Carving for Beginners
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Link to The Trampled Underfoot Podcast, hosted by my friend Eloy Escagedo and I. "Two guys from different decades, backgrounds, and opposite sides of the continent discuss life, the universe, and everything. What's the show about? About an hour..."
RU-vid: / @trampledunderfootpodcast
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Past Episodes available at our website: trampledunderf...
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For more information on, or to download a free trial of Cut 2D, VCarve, or Aspire, visit the Vectric website at:
www.vectric.com/
For more info, or to configure an Avid CNC of your own, visit their website: www.avidcnc.com/
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This video is for informational and entertainment purposes only.
#avidcnc #4848Pro #cncrouter

Опубликовано:

14 окт 2024

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Комментарии : 27

@kipsimpson2332 Год назад

You are a great teacher. Thank you for putting this out into the world. You helped me today with a big project and I appreciate it.

@تکتیرانداز-ش9د Год назад

I thank you for this tutorial I am a cnc wood engraver and my projects take a lot of time to complete Or this way, I can put several pieces on the work table and be more productive With your help, my problem was solved

@vigenboghossian6452 Год назад

Great video Mark thanks mate , now i understand most of them

@JDPat1230 Год назад

Great video Mark. This information is perfect timing for use with my new Avid CNC. Fixture offsets are completely new to me so will definitely come in handy.

@williamstauffer1542 Год назад

Perfect explanation Mark. I have them in gSender but never set them up. This will be a great time saver!

@tobiasolsen3223 Год назад

Mark, great demo and explanation. Offsets are a huge workflow efficiency. I have a larger table and have set up about 15 offsets throughout my table. a word of warning from experience: I don't know why, but sometimes the data from the offsets table just disappears....it has happened to me twice. Super frustrating. As a mitigating strategy, I have developed and Excel table that captures the offset data, so if the data is lost, I can cut and paste the coordinates back into Mach 4 from Excel without having to re-establish the coordinates with the probe.

@MarkLindsayCNC Год назад

That's a great tip! Thank you!

@sidewinderdrums Год назад

Hi Mark! Multiple offsets are a very powerful tool. I recently had a project where I had 40 parts to cut top and bottom (so actually 80 different cuts). I had a jig for top and a jig for bottom. I cut and paste the toolpaths into one big gcode file, and put the command "G55" in front of the first part of the toolpath, and "G56" in front of the second part of the tool path, so it would do both parts at once.

@MarkLindsayCNC Год назад

I have not yet gotten into editing G-code. That will be coming down the road, but as you can imagine, even suggesting editing G-code to automatically move your spindle out of the way when a file finishes running caused controversy. I'm with you, though!

@sidewinderdrums Год назад

@@MarkLindsayCNC Very true. I like to experiment with dangerous things like that. I edited my PP so the after the program is done, it raises Z to the max height (command is "G53 Z0.0000"). I used that same command between those G55 and G56 toolpaths to help ensure not hitting anything.

@MarkLindsayCNC Год назад

Yeah, I haven't even begun to edit post processors yet. So far that's still above my pay grade.

@dangoras9152 Год назад

Good information... Mark will it still save it if the machine is turned off.. Keep it up brother

@MarkLindsayCNC Год назад

Yes sir, it will. Once set, it'll stay in Mach4 until I go in and change or eliminate it.

@JayHuemann Год назад

This was very clear and will help me out a ton. Thank you. I have the same system with Mach 4 and I have been wondering about how to do exactly this. I can't wait to try it. I make walnut plaques for a plaque company and being able to get one set up while the other is cutting will save me time. When you use the touch plate it has a field where you can put in the diameter of the bit. Are they asking for the shank size or the business end of the cutter? Thank you.

@MarkLindsayCNC Год назад

They mean the business end of the cutter. That's only for the X Y zeroing operation though. If you're just probing Z, the bit diameter isn't needed. I almost forgot to set the bit diameter before probing X and Y a couple of times. That's why I use that 1/2 inch steel dowel for setting X Y zero. Then I don't have to worry about that diameter, because it never changes. I can just put it in hand tight, probe X and Y, then pull it out and install the bit I'm going to actually carve with.

@doug9121 Год назад

Great Video as usual. I wonder if you can help me, I am still using Mach3. I have been using it for about a year now with now problems. Getting g code from easel transferring to another pc that has Mach 3 on it and all good. Until yesterday seems like machine loosing zero position while carving detail cut. Starts going deeper in cut and destroys project. Can you give me an idea. Thanks Mark

@MarkLindsayCNC Год назад

Always check the mechanical first. Tighten all motor couplers and belts, even if they look tight. Make sure you don't have any static crossover in any dust collection system you may be running (ground the hose.) Lube your linear rails/guides. Lastly, make sure your collet is snugged up to that bit nice and tight. If the problem persists, check the bearings on your Z axis ball screw or linear bearings.

@triwibowo8500 Год назад

Saya suka, 👍. Bisakah saya mempraktekkan atau mencoba, saya sangat awam. Terima kasih sebelumnya.

@vigenboghossian6452 Год назад

Hi Mark i need your honest opinion which Mach do you preferred to use if you are cnc beginner

@vigenboghossian6452 Год назад

Could you please let ma know where I’m able to download or purchase proper 3 axis script so far any of them from RU-vid i download and tested didn’t work I’m from Australia and we are using metric

@randydotson5188 Год назад

Why did you align the holes to be be 1 inch on center from edges. Wouldn't aligning the holes so the holes to left and bottom of x,y axis lines give you true left and bottom of piece? By aligning to center of dowel holes your piece will be .0625 right and up from your x,y coordinate.

@MarkLindsayCNC Год назад

Actually, no it won't. By mounting the piece of material, then using my touch plate to set the X Y zero for that fixture offset, the X and Y zeros are set to the corner of the material - not to the pins. The physical location of the pins is completely irrelevant, as long as they're square to the X and Y axis travel, and you home your machine every time you start Mach3 or Mach4.

@randydotson5188 Год назад

@@MarkLindsayCNC lol nvm I may of overthought that.

@MarkLindsayCNC Год назад

No worries. It's a valid question.

@kaleklets8657 Год назад

why choose holes with pins that always have to be pulled out and no threaded bush?

@MarkLindsayCNC Год назад

The simple answer is, because I already had those pins, so I didn't need to buy anything to make this work. You could also use standard hardwood dowel, or go with your route and use threaded bushings. We all have our preferences and priorities, and I'm all about options.