azonenberg changed the topic of #homecmos to: Homebrew CMOS and MEMS foundry design | Wiki: http://homecmos.drawersteak.com/wiki/Main_Page | Repository: http://code.google.com/p/homecmos/ | Logs: http://en.qi-hardware.com/homecmos-logs/
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<Noxz> I'm hype on this engine turning after having my hands on some machines
<Noxz> if only they didn't cost 10k+
<nmz787> can you make some hybrid version using mostly easily sourced modern alternatives/stand-ins
<nmz787> ?
<Noxz> sorta, yes
<Noxz> the straight line machine I feel would be much easier than the rose(radial) one
<Noxz> the main thing is keeping everything faced flat + true
<Noxz> I do have a half built CNC machine I should finish some time
<Noxz> I got shitty used linear bearing swhich sorta made me stop, plus looking at prices of 80/20 aluminum extrusion profiles.. not prices of the stuff, but delivery
<Noxz> shipping on 80/20 is bad if you are on the west coast of the US
<nmz787> mmm
<nmz787> I am in OR
<Noxz> I'm up in WA now
<nmz787> I ordered some fake stuff a year ago from aliexpress I think
<Noxz> but I was in CA when building it out, and even sourced a distrubtor to make getting it easier
<Noxz> but basically lost most of my nots on it
<nmz787> it seemed decent quality, but not sure I'd assume it was the best
<Noxz> bosch rails I think is the other competitor?
<Noxz> main one
<nmz787> hmm
<Noxz> I will likely still endup going with 80/20
<Noxz> I just need to bite the bullet and do it
<Noxz> like $2k to get the machine going isnt bad
<Noxz> btw, it's like 3x3x2 ft
<Noxz> kinda big
<Noxz> but I have the control, steppers, linear ball screws, the tool drive (a hitachi router) ..
<Noxz> some linear bearings
<Noxz> some were brand new and are good
<Noxz> I tried rebuilding/lubing others, to no avail
<Noxz> thats when I sorta stopped, that and not pulllling the trigger on buying 80/20
<Noxz> but yeah, I am basically looking up CNC machines again
<Noxz> even just making it a manual miling machine would be fine for most parts
<Noxz> lathe isnt really needed for the straight line
<Noxz> just time and energy to design something
<Noxz> I was also in an apartment complex before
<Noxz> not ideal
<Noxz> for trying to build stuff
<Noxz> so much more freedom now.. I dont live in the woods where I can do what have you at 2am, but yeah
<Noxz> reason I got the hitachi router was that it is compatible with a precision bosch replacement spindle/chuck
<Noxz> another uncompleted project..
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<Noxz> I've been designing a straight line engine machine all day, hah
<Noxz> solves a few issues I encountered
<Noxz> more so bringing all common adjustments to the front, as one of them I had to keep reaching towards the back of the machine (to phase the pattern bar) and practically had to stand up for it
<Noxz> also the advancer drives a lead/ball screw to a driven nut.. but why not drive/rotate the nut against a stationary screw, that way that control is within hands reach, nto arms reach
<Noxz> but, what do I know, 12hrs of contact with the machines
* SpeedEvil has just been designing a double extension desk, on the rather simpler side.
<SpeedEvil> (slides a 45cm desk surface out 90cm)
<Noxz> I had planned something like that with this desk, but as soon as I got 4 legs going I had to plop my computer on it and havent actually finished it, heh
<Noxz> still have most of the wood for it too
<Noxz> but yeah, recently learned what scraping is w/ slides (dovetails), that was most of my youtube time last night
<Noxz> I think I have nearly always looked at linear bearings and never thought about what was done before (it's still in use) ball bearings came out
<Noxz> and also how much more load it distributes
<Noxz> just, does not seem very replaceable, and in some cases, not really serviceable.. some, but not entirely
<SpeedEvil> Well, if it can last a thousand slides, ...
<Noxz> sure, I thnk the biggest aspect of it is they are capable of resting or going to the same location time and time again, whereas I would think ball bearings with much less/limited contact would wear out indexes faster
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