Posted by RCWorks |
Oct 04, 2014 @ 05:07 AM | 4,465 Views
I am going to eventually convert this mill to CNC but for right now all I really want is a power feed since I normally operate this one manually.
I bought this mill in 2006. I have put 20 thread per inch leadscrews in it and changed the spring for that Littlemachineshop.com air spring assembly.
One day if and when the motor dies I will probably adapt a spindle motor and a VFD to it with a belt drive But that's a project for a later day...
So far I have bought all the parts for the powerfeed except the plate to use for the stepper motor adaptor.
I was looking over the internet for a reasonably priced CNC conversion kit and at $615 with no steppers CNCFusion.com lost me, however since I have a lathe and mill I have what I need to make the same parts.
I am a bit more budget minded and I do want be able to use this mill manually so I will retain those fairly fresh leadscrews.
The most expensive part of the powerfeed controller... Believe it or not it is the aluminum chassis. Yes a plain jane metal box. I bought the cheapest one that would hold all the parts.
The large parts inside were ready made, the 12 volt switching power supply and the 3.5 amp bipolar driver.
The square wave generator and the 12 volt to 5 volt regulator were DIY kits. The Square wave generator was modified for this application. You can build that square wave generator yourself at Radio Shack but it will cost 3 times the $2 I spent on the kit with an already etched circuit board. While the square wave...Continue Reading
I have finally decided to offer up a serious contender for the speed freaks.
The new 42 inch Raven will be showing up in about 3 weeks in a build thread. This is our first wing designed with speed in mind, most of my past wings were made for performace sport wings, they would take some speed but were laid out for fun and aerobatic performance.
42 inch all EPP CNC cut cores, cut slow at low temp.
2 .240 inch full length leading edge carbon fiber spars
2 3/8 inch full length trailing edge flat carbon fiber spars
1 .240 inch carbon fiber main spar
Buried linkage STANDARD in the kit
Our new LARGE motor mount plate with Tie Wrap
MPI heat sink clamshell motor mount
Coroplast for 2 battery bays.
1 1/2 inch bt 3/8 aileron stock used for the constant chord elevons
New Low profile 4mm tear drop winglets
Dubro control horns
Full Color Instructions in HTML format on a CD with video clips.