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Just to follow up on this thread: I asked for some help in the Mach 3 forums and someone told me to try quite a few different settings. Last night I spent a bunch of time adjusting every setting I...

Thanks for running that test. It's good info to have. Are you running a stepper based system?

I have had backlash set since I got the mill but I had only been doing runs of 12 IPM or less. I have...

What I meant when I said it makes total sense is that the BLC doesn't use the accel profile. Not that it explains the issue I am having. I still don't think my table is binding, but if more...

The 5v is coming from the computer's USB port via a USB "power cord". The 5v there is metering as 5.02v and I checked it with my scope and it's nice and clean.

Unfortunately the rest of my...

Thanks for the information Rick. I didn't realize BLC didn't use the accel profile, although that makes total sense. I will pull my steppers off and double check the table. Is there anything I need...

Accel is set to 2 for all axes.

Version is whatever the lockdown version was in February. I will check the exact as soon as I get home.

I had my steppers all off not long ago doing some major...

My understanding was that 4.6v is pretty well within tolerances on modern parallel ports due to the power saving measures that go into newer motherboards. I know the computer power supply is putting...

I thought maybe a video would help here.
These two videos are running the exact same Gcode. The only thing I changed between the first and second is I unticked the backlash compensation checkbox in...

Watched the video and tried the settings. Didn't seem to help. I think there is some difference between what Hoss was getting and what I am. His issue was mainly that without the settings the machine...

Sorry to reply to myself, but I just found this is in the Mach 3 manual:
Mach3 is not able to fully honor the axis acceleration parameters when compensating for backlash,
so stepper systems will...

Okay, it's finally cool enough in Seattle to spend some time in the garage!

I just did a bunch of testing and I've narrowed the problem down to backlash compensation in Mach 3. With BLC (backlash...

Okay, the computer is a 1GHz P3, 512 MB RAM. It does have onboard video, which is what I'm using.

I ran the Drivertest.exe and it showed Excellent from 25k all the way up to 100k.

I didn't see...

Thanks. This kind of information is just what I was hoping for. Some basic numbers that I can try out and see what's going on.

Thanks,
Jason von Nieda

Kernel speed is default: 25kHz, I believe? I'll need to check it when I get home. I'll also need to check the computer specs when I get home. It's a Dell OptiPlex Gx150, which I think is 1GHz and it...

Hi all,

I ran into a problem yesterday that I hope someone can give me some tips on. I have a Taig 2016, conversion done by Dan Mauch of Camtronics that I bought second hand. The controller is by...

Thanks! That's the clearest explanation I've seen of it, and now I get it.

Jason

Chipload is one of the things I have had the hardest time with. I don't understand the concept well. Is there a site, or something, that has a good explanation for the beginner? I mean, do I actually...

Jeff,

Thanks a ton for posting this. Very informative video! Sounds like I just need a dose of patience :)

Also, your setup is very inspiring! Give me a lot of ideas for upgrading my work...

Right now I am just prototyping. I don't really *need* to make any of them, it's just hobby stuff. If I come up with something that works I'll probably make 10 or 20 of this particular part in it's...

For speed I have been mostly using either 7500 RPM or 10,000 RPM. The information I have read has said that for small end mills like this you need high RPM to get a good chip. Additionally, my CAM...

These are a lot of the questions I am asking for help with :)

End mills are 2 flute, solid carbide. The main one I am trying to use is 1/4". How fast and DOC are things I am looking for guidance...

Hi all,

I have a Taig 2016 CNC conversion that I bought last year and have been trying to teach myself to use it. I am a complete beginner to machining in general but I like to learn and have...

This brings up two more questions:

What do you mean by groove mill? Is that just running a slot around the outside of what I'm trying to cut out? i.e. literally just milling a groove?

And...

Thanks very much for this response! This really clears a lot of things up for me!

Hi all, I have a few total newbie questions so I hope you'll bear with me.

First, a little background: I have a Taig CNC mill that I bought about a month ago and I've been learning all I can...

Just to close this out: I picked up an Irwin tap, used a Q drill and everything went great. Thanks everyone for all the excellent advice and information. My coolant manifold works perfectly! :)

Sounds good to me. Thanks for the responses all. I'll give it a try with a Q (non-reaming) and my HF tap and if that busts off I'll go shopping :)

Can someone explain to me why to use a Q instead of an R? I'm not questioning the recommendation, I just want to understand it. I've been looking at tap/drill charts and the Internet seems to be...

That could definitely be. The tap seems pretty junky but I figured I could at least get 3 holes out of it :)

Would it be reasonable to expect that a good tap could cut NPT threads without first...

Thanks for the response Hoss. I used a "R" to drill the hole. The 3/8" depth is enough to get a solid seal, but I wanted to go the full 3/4" purely for aesthetics. This is for the plug side of a...