Topics

1

Show"N"Tell ( What you have made with your CNC machine.) / Hot Wire CNC Hawker Hurricane

« on: December 15, 2014, 03:22:38 AM »

Hi Guys
This is my latest project built with my 4 axis hotwire CNC.  I use Profili2 and DevFusFoam to build the wings and fuselage which has taken some learning but I finally feel I'm getting there with it.  Here's a link to my website with some pics of the build http://www.keith-howlette.co.uk/hwc/cnc-hot-wire-hawker-hurricane.html.  Its made with XPS pink foam which is very light and strong.  Also have my CNC build on which is one that getting a lot of hits now almost as many as my Avro Lancaster.

Keith

2

General Mach Discussion / Sharing Mach 3 config

« on: December 12, 2014, 11:11:38 AM »

Hi Guys
I've built a 4 axis Hot wire CNC  which can be seen at http://www.rckeith.co.uk I get quite a lot of questions from guys doing the same build and I always give them my full support.  I have a licensed version of Mach3 and it would be a great help to these guys if I could send them my Mach 3 config file.  My only concern is that would I be exposing my license and unwittingly be a software pirate.

Thanks
Keith

3

General Mach Discussion / A-Axis won't home - 4 axis hot wire foam cutter

« on: January 06, 2013, 04:19:09 PM »

Hi
I've been setting my 4-axis hot wire foam cutter and it works just great.  You can see it here http://www.rckeith.co.uk/cncfc.html made my first wing which didn't come out too bad.  I've now installed limit/home switches and wired them all in series following this article http://www.cnczone.com/forums/attachments/stepper_motors_drives/148210d1324043992-wire_e-stop_button_tb6560_driver_board-tb6560limitinputs.pdf .  Used the Autoset to  configure home, ++ and -- for z,x,y,a which all worked fine.

Z, X and Y all home when I press REF ALL HOME, but the A axis doesn't move at all.  On the diagnostic page the A axis switches lights up as expected when a switch is pressed.
I've unchecked A-axis as angular in General config but it made no difference. 

Is there something else I need to do?  Will I need to wire the A-axis to a separate  input pin.

Keith

4

Show"N"Tell ( Your Machines) / CNC Hot Wire Foam cutter

« on: December 28, 2012, 07:54:35 AM »

Hi guys

My machines is working, just finishing off with some limit switches.  My website has all the details and a video of it working at http://www.rckeith.co.uk.  Plan to make a flying wing as my next project using the machine I've nick named 'El gizzmo' to produce it.  I've used a lot of recycled wood and parts from an office clear out to make a lot of it and old PC's that were being scrapped.  Electronics is TB6560 from ebay with motors, so far no issues.

Keith

5

General Mach Discussion / Machine set to millimeters can I use gcode with inches OK

« on: July 19, 2012, 01:53:52 AM »

Hi
This is my first post and I fairly new to CNC so it may be a dumb question.
I've built a CNC hot wire foam cutter for building RC wings and fuselages and I've set up MACH3 units to be in millimeters.  I run some test cuts on some small wing profiles and everything is good.  So now I want to cut a wing to actually  for flying with.  I'm using Profili2 to design the wing and generate the gcode.  I'm using a old plan in inches and have created the gcode OK. 
I now there is a gcode to specify inches or millimeters so even though I set my machine up to use millimeters if the gcode says inches at the start will it do the conversion or do I need to convert it all first.

My machine build and a video of it working can be seen at http://www.rckeith.co.uk/cncfc.html