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18-07-2015 #41
Hi Eurikain,
Thanks for kind words! But actually all credit should go to users in this forum. Since all i have done is been reading and copying other build logs. I might as well could use Boyan Silyavski
1st build model ;) But I find it helps me better to truly understand my machine if I have at least drawn it from ground up.
Details from Fred arrived yesterday.
Excellent packing, fast shipping and all according to requested dimensions.
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18-07-2015 #42
Ohhhhh boy that looks sweeeeeeeeet !!! Really nice packaging !
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21-07-2015 #43
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09-08-2015 #44
Small update which marks the real start of my build :D
Laser-cut parts will be ready tomorrow. Sadly I have one "after work hobby funding project steel staircase" to finish next week so I doubt I can get any progress soon...
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20-08-2015 #45
Managed to weld up the gantry today :D
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01-11-2015 #46
It seemed quite funny while photographing...tough crowd :D
So I'm all welded up and cleaned for painting. First plan was to weld it all together but ditched that wonderful idea. So now the frame consist of 5 pieces. Connections M10 bolts. Plenty of adjustments.
Next step is paint and then epoxy and assembly.
So now I should think about buying electronics...I have not done any research on this so please recommend! I will go with MACH3, DIY PSU, gantry squaring, home and limit switches. What BOB? Or even motion card? Drivers?
Thanks for listening!
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01-11-2015 #47
What a beautiful work ! Seems like you've done this your whole life :)
I am not an expert but everyone seems to fit these kind of machines (steel based, roughly the weights you mentioned) with AM882 drivers (60-80V) (check out AliExpress for those, they are about 68 Euros free shipping with DHL, make sure to buy max 2 at a time or you will have to pay for shipping) with 3.1Nm Nema 23 motors from CNC4YOU (I tried finding them on AliExpress but 8 lead 3.1Nm 4.2A low inductance motors are hard to find elsewhere than on sites like CNC4YOU, Zapp Automation...). PSU I can't tell you yet as I am in the process of making one (helped by JAZZCNC). Ask the gurus and they will help you :D. For the BOB, I use a cheap chinese $10 one. Works good for what I need (5 axis, spindle on/off, spindle speed, limit switches, e-stop). That's even more than I need. Other people here will most likely tell you not to go with that and use a fancy BOB. I don't know much about BOBs so I stick with the basic cheap I've got :)
Looking forward to read other members' recommendations :)Last edited by eurikain; 01-11-2015 at 07:07 PM.
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01-11-2015 #48
Agreed, your work on this looks super sweet, should be a nice solid machine frame, nice one Toomast!
.MeLast edited by Lee Roberts; 01-11-2015 at 07:52 PM.
.Me
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05-11-2015 #49
As I have invested a lot of time and money into this project I don't want to create unnecessary problems with cheap components. I know that lot of people use them and are happy but I don't want to waste any hour or even days for troubleshooting - just to find out the fault was the dirt cheap BOB ;)
Any other recommendations for BOB?
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05-11-2015 #50
CSMIO all the way if you want a good one...
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