Search found 65 matches

by TrollHammer
Wed Mar 29, 2017 10:34 am
Forum: Projects
Topic: Converting D&M4s mill with CNC Shield
Replies: 7
Views: 1205

Re: Converting D&M4s mill with CNC Shield

Hmm... looks like that's a problem. One of the main purposes I was going to use the machine for was lightsaber hilts, having a combination of XY faces and axial rotation. I"m running through machining processes in my head and wondering if I could somehow set the Y axis to align to center, turn off t...
by TrollHammer
Mon Mar 27, 2017 9:43 am
Forum: Projects
Topic: Converting D&M4s mill with CNC Shield
Replies: 7
Views: 1205

Re: Converting D&M4s mill with CNC Shield

I will head over there presently @lyndon. Thank you. I found a off the self level shift module that was pretty cheap, but when I looked at where it needed to hook in I'd lose my 4th axis (planning on doing some rotary milling and see if I can run an extruder for 3d printing (not at the same time, of...
by TrollHammer
Thu Mar 23, 2017 10:49 pm
Forum: Projects
Topic: Converting D&M4s mill with CNC Shield
Replies: 7
Views: 1205

Re: Converting D&M4s mill with CNC Shield

Thank you for the reply and the insight to the stepper voltage situation. I had a post started on the laptop, ordering parts from my phone at the moment. I was able to find that the motor controller requires a 0-9v analog input for speed control if the pot is not used. As the Uno is 5v output for pw...
by TrollHammer
Wed Mar 22, 2017 5:07 pm
Forum: Projects
Topic: Converting D&M4s mill with CNC Shield
Replies: 7
Views: 1205

Converting D&M4s mill with CNC Shield

Years ago I picked up a D&M4s mill like this one: https://www.govdeals.com/?fa=Main.Item&itemid=180&acctid=4702 and I'm finally getting around to switching it over to modern electronics. The current plan: Gut it and replace with an Arduino/CNC Shield package running GRBL. So far I have taken the ent...
by TrollHammer
Mon Jul 28, 2014 11:54 am
Forum: Arduino
Topic: Two functions with the same label?
Replies: 3
Views: 561

Re: Two functions with the same label?

Thank you for clarifying that for me, I guess I'll need to start looking at c++ references! I so seem to remember someone saying it's 'somewhere between C and C++" or something like that, or that it's not a fully featured ANSI language. If I use a C++ reference (like Sam's), what parts can I ignore,...
by TrollHammer
Wed Jul 23, 2014 3:31 pm
Forum: Arduino
Topic: Two functions with the same label?
Replies: 3
Views: 561

Two functions with the same label?

Hi, I'm confused. :lol: I was looking at someone's code for a Kiwi drive robot (three omni wheels), and he's doing something I don't quite understand, and would like clarified. He uses the same label for two two different functions, it seems, or I'm just not understanding some aspect of C? Here's hi...
by TrollHammer
Wed Jul 16, 2014 2:01 pm
Forum: Arduino
Topic: Arduino cnc program
Replies: 13
Views: 2933

Re: Arduino cnc program

So far, this is what I've come up with for controls and references: Found this thread http://www.cnczone.com/forums/benchtop-machines/27707-d-amp-m-4-machining-center-documentation.html on my mill. I haven't found a single reference to anyone NOT retrofitting it, and most replace all electronics ins...
by TrollHammer
Wed May 28, 2014 9:05 am
Forum: FPGA's
Topic: A/D implementation on FPGA
Replies: 2
Views: 2402

A/D implementation on FPGA

How is A/D conversion usually handled when using FPGAs? It seems that with the potential for unclocked signals passing through the gates, high accuracy or high frequency signals could be compared or mixed, but with the thought I have in mind, the issue is getting analog signals "into" the array quic...
by TrollHammer
Tue May 13, 2014 12:20 pm
Forum: Arduino
Topic: Arduino cnc program
Replies: 13
Views: 2933

Re: Arduino cnc program

I'm not sure what benefit you think there is in replacing the PC with an Arduino. Especially if the PC is working, what you have amounts to a turnkey system ready to make parts. Hmm... maybe I'll have to throw it back together and see if the floppy will read. I'm not holding my breath, though, the ...
by TrollHammer
Tue May 13, 2014 8:48 am
Forum: Arduino
Topic: Arduino cnc program
Replies: 13
Views: 2933

Re: Arduino cnc program

Didn't see the other posts! I've actually got a CNC I'm refitting with an arduino controller (saves about 30 pounds of antiquated computer hardware) and ... Two topics here ... 1) I think any further discussion of "community" doesn't belong in this thread. Perhaps another one, or PM's, but let's not...
by TrollHammer
Mon May 12, 2014 10:07 pm
Forum: Arduino
Topic: Arduino cnc program
Replies: 13
Views: 2933

Re: Arduino cnc program

It seems like it would be much easier to run LinuxCnC on a BeagleBone Black and poof! 95% of the work will already be done for you. Wow, thats quite the powerhouse! Do you have experience with LinuxCNC? My main experience is with Solid Edge, and most of my workpieces are in that environment. Im won...
by TrollHammer
Fri May 09, 2014 2:38 pm
Forum: Arduino
Topic: Arduino cnc program
Replies: 13
Views: 2933

Re: Arduino cnc program

I've actually got a CNC I'm refitting with an arduino controller (saves about 30 pounds of antiquated computer hardware) and these days it seems like pulling teeth to try and get any foothold on where to start figuring out how to make it work. I've been doing solid modeling for two decades now, smal...
by TrollHammer
Fri May 09, 2014 9:09 am
Forum: Arduino
Topic: Sprinkler Controller
Replies: 2
Views: 824

Re: Sprinkler Controller

Wow, nice job! This is along the lines of what I had planned to do (need to get pipe in the ground first). I intended to use a Mega as I have 6 acres and a many zones with different watering requirements. I was also going to track water use and base watering off of available water/water used and use...
by TrollHammer
Mon Apr 28, 2014 9:52 pm
Forum: SparkFun Product Questions
Topic: using a camera and a laser pointer
Replies: 13
Views: 2906

Re: using a camera and a laser pointer

(Edit: Sorry, didnt notice the year, thought this was posted a few days ago) Read through the thread and it brought back memories working with line scan cameras in fruit sorting. Used them to detect the size of the fruit. Ended up coming back to add my .02 for what it is worth, since I spend a lot o...
by TrollHammer
Sat Apr 19, 2014 10:50 pm
Forum: Arduino
Topic: Interrupts and micros() (Arduino based EFI)
Replies: 6
Views: 2937

Re: Interrupts and micros()

@me n mac: Uno with ATmega328. Thanks again for the insight. I was not aware that a timer could be variably subdivided. Thanks for all the input everyone, Gives me a lot to consider. In the last 24 hours I have found other projects like mine, but very little code, and few going the route I intend. W...