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Facebook is a black hole. Oddly though, you don't have to join to have your personal data sucked into their vortex because if you were in the address book of anyone who is a facebook member - they already have you. There is a page facebook offers to allow people to expunge their phone numbers...

Can you open the stl in fusion 360 (or have someone else do it) and export in Step - then open that in Alibre?

I've dealt with Myfordboy on many occasions. I've had many castings from him, all of which were of excellent quality and machined very well. I've also asked numerous questions regarding his models and always received a prompt response. I can't imagine him refusing any reasonable request. As...

Specified US Alternative Metric 2 BA 10 - 32 M5 x 0.8 4 BA 6 – 40,6-32 M4 x 0.7 5 BA 5 - 40 6 BA 4 – 48,4-40 M3 x 0.5 8 BA 2 – 56...

Assuming you are mobile, I would suggest starting with the Victoria makerspace.

http://prestonservices.co.uk/item/ricardo-alco-military-radio-battery-charging-set/

Download and install revo (free version). Use it to uninstall Draftsight.

Myfordboy's Aermotor is 1/2 size, while the one previously sold by lone star was 3/8. Myfordboy got his measurements from an original engine in Australia.

attached an archive of the thread photos - rotated.

Try this for an intro to Sterling engines. http://myfordboy.blogspot.co.uk/p/myfordboys-e-z-stirling-engine.html

Issue 6 page 16 is the first part.

https://www.thehenryford.org/collections-and-research/digital-collections/artifact/393683

You might find CNCRouterparts offerings of interest. They offer a 3d printing system that can replace the spindle, as well as plasma cutting, though the change over from routing to plasma is a major effort. If you are after a relatively small machine, they have the benchtop line. Check out...

you can download draftsight for free here: https://www.3ds.com/products-services/draftsight-cad-software/free-download/ and run that on your PC, or you could use fusion360 (free for personal use) on the internet. Have a look here: http://www.autodesk.com/education/free-software/fusion-360

I was thinking, as I searched around for an inexpensive source of 1/16 carbide ballnose endmills, that it would be nice to be able to regen the gcode changing the 1/16 cutter to a 1.5mm one (which I have). It would be easy for me to do this if I had the cambam source, but I recognize the...

For the CNC'd parts I see no need to supply cad files or printed/pdf drawings beyond general assembly drawings. Those, plus builders notes should suffice. For the non-cnc'd parts drawings would of course be necessary.

Steve: Looks fine. I note that the sizes of the #28 and #32 drills are both annotated as being 0.116 rather than 0.116 and 0.1405. I'll run the part as soon as I can put my hands on some 1/16 carbide endmills.

I get those numbers for a 4 flute carbide cutter. Halve that for 2 flutes. That's for roughing - halve again for finish cuts.

Don't abandon the idea Steve - it's an idea whose time has come. Ken aka Woodguy

Beautiful work. How did you locate the rough rear wheel castings for machining on the cnc router?