Sorry to be late to this one. I just posted an article that details how to calculate Feeds and Speeds for thread mills in G-Wizard along with a ton of other Thread Mill information here:
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Type: Posts; User: BobWarfield
Sorry to be late to this one. I just posted an article that details how to calculate Feeds and Speeds for thread mills in G-Wizard along with a ton of other Thread Mill information here:
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Jake, I think you'll find a little experimentation will help with the preload as well. By all means, start with the calculated values and try to figure the spacing needed for that. I believe I have...
Mike, 2 or 3 weeks. I am still organizing some rigging details, and it is conceivable it might slip, but they're motivated and the machine looked ready to go when I was in Wisconsin.
Cheers,
BW
I believe they scratch built the GUI using Python. It's very clean and nice to use. I will show some screen shots when I get my machine.
Cheers,
BW
Jake, I don't know what you mean by an "arm and a leg" (i.e. what your price range is), but spindles are expensive. You can fairly commonly find 5C collet spindles on eBay from firms like Dunham. ...
Howdy all. Just wanted to announce that our intro pricing offer is ending soon--March 31. We've sweetened it by throwing in a free copy of our Conversational CNC Wizards:
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Car Window Grille = BRILLIANT!
Been looking for a cheap source of the linkage for ages.
Thanks!
Bob Warfield
Looks awesome!
Love a coolant system that isn't wimpy and can push those chips out of the way. Some of the flood coolant systems guys without enclosures run are fine for lubrication, but the flow...
Love the Magnabend. Would like to do a CNC version. Seems ideal for smaller shops!
Best,
BW
I wonder if the tube will last longer if it isn't exposed to so much vibration because you've used the mirrors?
Cheers,
BW
xyzer is right, it's all about exactly how the peck works, and most of the canned cycles are not helpful with carbide.
Check out the Hole Wizard in G-Wizard Editor's Conversational CNC module for...
Check out G-Wizard Editor. It has a whole series of g-code revision commands.
GWizard Editor: A G-Code Editor and Simulator
Cheers,
BW
sinha, no reason you can't do arithmetic here too. The variables have both a name and a number with the Fanuc SETVN and the syntax I've described for GW Editor.
Cheers,
BW
Deflection is going to be a killer on that deep a slot with that tiny cutter. I'm not sure based on the numbers I see that even fizzissist's strategy will work with EM's this small and that much...
Macro programming is hard enough, but I always found remembering what #107 actually did in my subprogram was torture. I'd keep a cheat sheet handy, but it was still painful.
Some controls fix...
Divide by 2 and drop the fraction to shift right 1 binary digit.
Use "MOD 2" to determine the value of the last digit.
Check out any writings on using mod operators in programming and most of...
Seems like the worst part of getting old isn't so much what is happening to you (though that ain't great), but what's happening to friends and loved ones around you.
Sorry for your loss. I still...
Terry, I'm liking the pull stud and drawbar force possibilities.
A couple other things to think about. First, not sure if you're torquing the ER collet chuck nut, but they have torque specs too...
6-32's are definitely a pain. Sounds like you have it under control, though.
For future reference, here is a post on choosing thread % vs strength to minimize the tapping force and hence...
Using a cement mixer is perfect!
If you want a 5 gallon bucket tumbler, this one is really simple to build:
Part Tumbler for Vibratory Finishing on the Cheap « CNCCookbook CNC Blog CNCCookbook...
Hoss, that's really cool. I'd love to have something similar that could also recognize an RFID or similar on the dog's collars. I don't know if they'd be too scared of it, but it'd be nice if they...
Bad news for BT30 lovers--I bought a set of 4 of these YS holders and the runout was terrible. It ranged from 0.0007", which is the barely tolerable to 0.0022", which is totally unacceptible. The...
ER's should give better finish than set screw holders for a variety of reasons. I've quit using set screws for cutters 1/2" or smaller.
There's some quantification on that as well as on just how...
Terry, you're correct, so far only the Hole Wizard. More to come.
RE 2x the Diameter, I mean 2X the cutter diameter. This is so as not to cut a ring that could potentially jam and break the...
Terry, there's a bunch of considerations to solve the circle cutting problem in general. For example, you do want to helix in, but only helix up to 2x the diameter and then spiral out from there if...
Pete, you're probably not interested in anything so elaborate, but there's been a couple of really awesome tubing bender projects published:
Hydraulic Tube Bender Engineering Project - OFN Forums...
4 and 6 IPM is really too slow a feed. The cutter will probably rub and that'll produce a decent finish, but a shorter tool life. I wouldn't try to go much slower than 8 IPM. To understand this...
txcncman is right, G74 just does a short chip breaking retract and doesn't go the whole way.
If you don't have a cycle that has a full retract you can use our g-code wizard to generate the code...
Even with rigid tapping, you can get better tool life with a tension compression holder:
CNC Rigid Tapping
In your case, that may be the easiest fix, assuming you don't track it down to a post...
One thing I found that made a huge difference in squaring my mill was to level the table first. Whether this is done by adjusting or shimming the feet on the base, or by leveling the stand is...