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Messages - BluePinnacle

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231
General Mach Discussion / Re: Offsets for spherical tools
« on: January 22, 2009, 12:16:34 PM »
 ??? :o

Just read up on parametric programming. I can see that what I want to do is possible but it's going to need a lot of that very special coffee and a good lie-down afterwards. I will lock the children in the cupboard, unplug the dog and prepare for some very in-depth algebra.

232
General Mach Discussion / Re: Mach Turn used for metal spinning?
« on: January 22, 2009, 05:11:53 AM »
excellent, thanks. I should be able to do something with this :D

233
Odd, mine's ok, cuts nice small circles. What comands are you using for the circle? If as hood says it's a string of G01s then it would rattle between them with G61 on. G64 is the right medicine for curves.

234
General Mach Discussion / Re: Mach Turn used for metal spinning?
« on: January 21, 2009, 04:01:03 AM »
great. Could you point me at the video? Much appreciated :)

235
General Mach Discussion / Mach Turn used for metal spinning?
« on: January 20, 2009, 08:56:28 PM »
Anyone here used Mach3 Turn for spinning or shear forming?

I'll be getting hold of some hand spinning equipment soon and I'm thinking of CNC/PNC upgrades in the future.

236
General Mach Discussion / Re: Offsets for spherical tools
« on: January 20, 2009, 08:53:30 PM »
Brilliant, thanks - I'm making microwave reflectors for milimeter wave systems (potentially - it's an ongoing thing). I'll have another go at the manual, i looked ages ago but it was a bit opaque. Perhaps it will be clearer after more coffee. If there's a special coffee I must drink, do let me know ;)

237
General Mach Discussion / Offsets for spherical tools
« on: January 20, 2009, 11:36:14 AM »
Hi. Simple question, difficult machining. Can mach3 be set up to allow for a spherical offset system? I need to machine a compound curve - a reflector parabola, in fact - and a spherical or ball-nosed cutter would be the thing to do it. Can a simple offset be used to do this or will I have to wear out  a calculator translating 3D values into real controlled point movements?

Also, pointing me to a section herein on building formulae into G-code would be extremely useful.

Thanks in advance :)

238
General Mach Discussion / Re: toolpath display: odd problem
« on: January 20, 2009, 09:47:57 AM »
useful tip: thanks ;)

239
General Mach Discussion / Re: toolpath display: odd problem
« on: January 19, 2009, 09:40:12 AM »
I haven't tried switching to Toolpath in a cycle, but I can see the green line progressing on the little toolpath screen at the top right of the "program run" screen. As you say, I can see it going around and around on the left hand fixture when it's actually cutting on the right. I'll try looking at the toolpath screen next time I run it.

It's better than the other way round so I won't gripe if a fix is on the way anyway ;)

240
General Mach Discussion / Re: toolpath display: odd problem
« on: January 19, 2009, 09:23:47 AM »
ah, ok. I'll be patient :)

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