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  #91  
Old Mon 03 October 2016, 12:36
Fox
Just call me: Fox
 
Amsterdam
Netherlands
I applaud your work and the fact that you share even though I am with Danilo that you could have prevented some mistakes by reading a little more into the forum. Some people only read, and that's not good either ;-)

Keep going.
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  #92  
Old Mon 03 October 2016, 12:37
Borko
Just call me: Techstarve
 
Veles
Macedonia
The progress of painting.
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File Type: jpg IMG01192-20160402-2115.jpg (23.0 KB, 650 views)
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  #93  
Old Mon 03 October 2016, 12:53
Borko
Just call me: Techstarve
 
Veles
Macedonia
I almost forgot to share this : Cut-off rail piece used as rod for energy chain carriers. That's why I admire this construction, there is nothing to be discarded.
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File Type: jpg IMG01173-20160321-2307.jpg (24.6 KB, 655 views)
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  #94  
Old Sun 09 October 2016, 17:52
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
I used the cut off of the veerail as carrier supports too.
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  #95  
Old Tue 11 October 2016, 12:54
Borko
Just call me: Techstarve
 
Veles
Macedonia
Finally, all painted and put back.

The 'ugly corroded steel' shined like a diamond.
Attached Images
File Type: jpg IMG_20161011_192450.jpg (45.6 KB, 592 views)
File Type: jpg IMG_20161011_192514.jpg (47.8 KB, 598 views)
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  #96  
Old Tue 11 October 2016, 13:18
Borko
Just call me: Techstarve
 
Veles
Macedonia
Dark blue color is essential, black for rails and chain supports, dark grey for Y - car ( mixed black and grey colors I got in the workshop ), reason: blue color all gone and didn't want to buy another can.
Attached Images
File Type: jpg IMG_20161011_192718.jpg (40.1 KB, 595 views)
File Type: jpg IMG_20161011_192639.jpg (52.6 KB, 599 views)
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  #97  
Old Tue 11 October 2016, 13:23
Borko
Just call me: Techstarve
 
Veles
Macedonia
In meanwhile I used cross bearers for drying tea .
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File Type: jpg IMG_20161011_192556.jpg (49.1 KB, 597 views)
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  #98  
Old Tue 11 October 2016, 19:47
lonestaral
Just call me: Al #114
 
Isarn
Thailand
Send a message via Skype™ to lonestaral
Looking good.
Good to see another MechMate on a tiled floor
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  #99  
Old Tue 11 October 2016, 22:30
Borko
Just call me: Techstarve
 
Veles
Macedonia
Thank you Al.
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  #100  
Old Sat 05 November 2016, 05:14
Borko
Just call me: Techstarve
 
Veles
Macedonia
I haven't posted couple of weeks, but I'm still working and keep reading.
Ok, the next is 'kitchen project'. I can not not resist anymore to laying motors, drivers and electronics that arrived approx. 1 year ago.
Attached Images
File Type: jpg IMG_20161105_081900.jpg (33.1 KB, 537 views)
File Type: jpg IMG_20161101_200823.jpg (33.9 KB, 536 views)
File Type: jpg IMG_20161105_081826.jpg (33.1 KB, 537 views)
File Type: jpg IMG_20161101_200838.jpg (31.6 KB, 539 views)
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  #101  
Old Mon 07 November 2016, 13:22
Borko
Just call me: Techstarve
 
Veles
Macedonia
Mach3 installed on Intel Celeron 1.7 GHz / 2GB RAM, perfect machine as controller.
Attached Images
File Type: jpg IMG_20161101_201047.jpg (26.9 KB, 509 views)
File Type: jpg IMG_20161101_201020.jpg (25.7 KB, 514 views)

Last edited by Borko; Mon 07 November 2016 at 13:25..
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  #102  
Old Mon 07 November 2016, 14:07
Borko
Just call me: Techstarve
 
Veles
Macedonia
Stepper motors wired half coil, type 86HS9801, digital drivers Leadshine DM856, toroid transformer 1KVA, 220VAC input / 73 VDC output.
Attached Images
File Type: jpg IMG_20161101_200925.jpg (39.2 KB, 510 views)
File Type: jpg IMG_20161101_200854.jpg (33.2 KB, 510 views)
File Type: jpg IMG_20161101_200838.jpg (33.3 KB, 510 views)
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  #103  
Old Mon 07 November 2016, 14:37
Borko
Just call me: Techstarve
 
Veles
Macedonia
Current rush in 1KVA toroid transformer is so much that blow up fuses.
'SOFT START' electronic device is a must when using transformers over 300 - 400 KVA.
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File Type: jpg IMG_20161101_200854.jpg (35.9 KB, 510 views)
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  #104  
Old Mon 07 November 2016, 15:35
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
Just for sake of putting information for new members to read I must question last couple of posts.

First this does not look large enough toroid to be 1kva ... seems like my standard ones ~600va.

Capacitor is inadequate for this type of current draw.

don't want to start a war but I thought that wiring bipolar parallel became standard or 4 wire stepper is ok. Never understood this half coil theory.

What makes this relic computer and monitor a PERFECT machine? How did you conclude its perfect, did you test the LPT signals output etc...
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  #105  
Old Wed 09 November 2016, 17:03
Borko
Just call me: Techstarve
 
Veles
Macedonia
Kitchen Project

Quote:
Originally Posted by danilom View Post
Just for sake of putting information for new members to read I must question last couple of posts.

First this does not look large enough toroid to be 1kva ... seems like my standard ones ~600va.

Capacitor is inadequate for this type of current draw.

don't want to start a war but I thought that wiring bipolar parallel became standard or 4 wire stepper is ok. Never understood this half coil theory.

What makes this relic computer and monitor a PERFECT machine? How did you conclude its perfect, did you test the LPT signals output etc...
Danilo, I appreciate your experience and knowledge a lot, and it's good above posted infos to be clarified for sake of all Mechmate builders including me.

Maybe it's my fault considering posting pictures, it doesn't look like 1000VA ( by it's dimensions ), when you look at the pic, but it is. It's ordered from www.trafco.rs with CE certificate and so on. Below, the pic of data label. SOFT START cost only 10$, I wanted it as a precaution.


Capacitor is NIPPON 10.000 uF( microFarad's) @ 80V, snap-in type. I wired two in parallel to get 20.000 uF but second one blow up while first run and frightened me so much that I throw away the multimeter that I had in my hand . I suppose capacitor was old one.

I understand your concern of stepper wiring. I agree with you that we'll get max power / torque when wiring bipolar parallel. Below curves explain it. I would love it too, who wouldn't ? But that what scares me is that this stepper motor ( 86HS9801 = 34HS9801) when wired bipolar parallel draws 8A current that exceeds driver DM856 peak current 5.6A

I'm not an expert in this field, just logical thinking. I'll be happy if you lead to opposite.

The old PC is 'Perfect' right now cause the 'empty pocket'. But I run the steppers in jog, running some of wizards from MACH3. There was endless happiness they become alive !! Why not using this PC as controller anyway? What difference does it make ? Maybe I'm not thinking the right way?

Nevertheless, thanks for you time spent in this goldmine forum with newbies.

Regards,

Borko
Attached Images
File Type: gif 3339.gif (25.0 KB, 478 views)
File Type: jpg IMG_20161109_211136.jpg (36.2 KB, 479 views)
File Type: jpg IMG_20161105_084144.jpg (16.8 KB, 477 views)
Attached Files
File Type: pdf DM856m.pdf (1.08 MB, 4 views)

Last edited by Borko; Wed 09 November 2016 at 17:12..
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  #106  
Old Sun 13 November 2016, 04:52
Borko
Just call me: Techstarve
 
Veles
Macedonia
PSU Board

I want the custom made PSU to look proffesional. Ebay is the right place to find everything you need you can't find at home.

http://www.ebay.com/itm/141906974878...%3AMEBIDX%3AIT

Condensers 'snap in' type also found on Ebay.

http://www.ebay.com/itm/272266721321...%3AMEBIDX%3AIT

Regards,
Borko
Attached Images
File Type: jpg IMG_20161109_211509.jpg (29.5 KB, 446 views)
File Type: jpg IMG_20161109_211712.jpg (40.3 KB, 445 views)
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  #107  
Old Thu 24 November 2016, 14:27
Borko
Just call me: Techstarve
 
Veles
Macedonia
Making stop blocks

Stop blocks cut, drilled, tapped and welded.

Inductive sensors carriers made of rails cut-off parts.

20mm holes drilled into rails with this amazing 3$ hole saw.
I didn't believe it would remain sharp.
Attached Images
File Type: jpg IMG_20161119_231053.jpg (30.4 KB, 392 views)
File Type: jpg IMG_20161119_231154.jpg (20.9 KB, 392 views)
File Type: jpg IMG_20161119_231207.jpg (19.6 KB, 391 views)
File Type: jpg IMG_20161119_231449.jpg (24.4 KB, 391 views)
File Type: jpg IMG_20161119_231721.jpg (32.0 KB, 389 views)

Last edited by Borko; Thu 24 November 2016 at 14:30..
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  #108  
Old Mon 28 November 2016, 08:24
javeria
Just call me: Irfan #33
 
Bangalore
India
Please buy a new computer ! and Danilo is correct.
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  #109  
Old Mon 28 November 2016, 10:31
Borko
Just call me: Techstarve
 
Veles
Macedonia
Yes, new computer and steppers wired bipolar parallel.
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  #110  
Old Mon 27 February 2017, 16:22
Borko
Just call me: Techstarve
 
Veles
Macedonia
Building Z-axis

I decided to use Dimitry's construction for Z-axis with lead screw and ball nut.
Dimitry, I hope I got your permission.

There were cut off cross bearer pieces, channel 80x40, but not long enough for already machined lead screw.

Pieces welded and cut to proper length. Alignment checked, seems to be promising.
Attached Images
File Type: jpg IMG_20161207_154425.jpg (28.4 KB, 265 views)
File Type: jpg IMG_20161207_155533.jpg (32.4 KB, 268 views)
File Type: jpg IMG_20161207_155552.jpg (31.4 KB, 264 views)
File Type: jpg IMG_20161208_150423.jpg (31.3 KB, 266 views)
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  #111  
Old Wed 01 March 2017, 14:37
firechief
Just call me: Tim
 
Battle Creek
United States of America
Quote:
Originally Posted by danilom View Post
Fill it with shims between spider plate and y car

Throughout this whole thread we can see lots of problems that are common to novices, maybe some of them could not even happen if the wealth of information on this forum has been used.
My advice is to stop now and slow down, read some of the more documented build histories and save time on repairs later.
I'am in the middle of my build, I have done allot of reading on the forum for years and there is so much stuff and 20 different ways of doing something, it is hard to tell what the right way is to do it. Someone will do it one way and 5 others have a different way of doing it. Then you have to people that want to change it and 10 post latter it don't work. Simple thing sometime is hard.

firechief
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  #112  
Old Wed 01 March 2017, 15:31
servant74
Just call me: Jack
 
Nashville (Tennessee)
United States of America
Yes, there are lotus of ways to do almost everything. The great thing is to get a fine build we don't need the 'most optimum solution' for each thing, we need what works for us!

Don't get to tied down to the details of one way or another. Do what wocrks for YOU. For me, I try to choose one way to do each thing and stick with it for that task rather than changing techniques. For me, that keeps things simpler, and I am more likely to succeed.

Choose, and keep going. ... At least that is my 2cents worth.
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  #113  
Old Fri 03 March 2017, 17:50
Borko
Just call me: Techstarve
 
Veles
Macedonia
Yes, I agree with Jack, do the things that are most suitable for you, If sometimes something goes wrong just go back and do it another way. That's my way, at least experiment is what makes you thinking 'out of the box'.

I decided to remove / grind the fillet channel angle where lead supports will lay.
The ball nut travel is 290mm.
Attached Images
File Type: jpg IMG_20161208_151809.jpg (22.3 KB, 216 views)
File Type: jpg IMG_20161208_151919.jpg (28.7 KB, 213 views)
File Type: jpg IMG_20161208_152037.jpg (36.4 KB, 216 views)
File Type: jpg IMG_20161208_151714.jpg (30.4 KB, 216 views)
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  #114  
Old Mon 06 March 2017, 15:18
Borko
Just call me: Techstarve
 
Veles
Macedonia
I use granite tile as reference surface. 'Body filler' to correct the geometrical imperfect of 60 x 40 tube, than hand sanded on 80 grit sand paper put on granite tile. All tightened and spot welded to proper height.
Attached Images
File Type: jpg IMG_20170115_002519.jpg (31.4 KB, 188 views)
File Type: jpg IMG_20170115_153207.jpg (26.4 KB, 188 views)
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  #115  
Old Mon 06 March 2017, 15:26
Borko
Just call me: Techstarve
 
Veles
Macedonia
It took some time to adjust 60 x 40 tubes laying in granite surface.
Calculations for linear rails distance done and marked.
Attached Images
File Type: jpg IMG_20170115_153326.jpg (30.8 KB, 189 views)
File Type: jpg IMG_20170115_153344.jpg (22.5 KB, 189 views)
File Type: jpg IMG_20170115_165235.jpg (26.1 KB, 187 views)

Last edited by Borko; Mon 06 March 2017 at 15:54..
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  #116  
Old Mon 06 March 2017, 15:47
Borko
Just call me: Techstarve
 
Veles
Macedonia
I put a filler layer on scratched metal and sanded.

Final checking with dial indicator 'where are rails' compared to granite surface.

Very thin shims needed to be placed in order rails to be in plane. ( different shims made from different size grit sand paper 1500;2000;3000 ).
Attached Images
File Type: jpg IMG_20170119_203308.jpg (24.5 KB, 187 views)
File Type: jpg IMG_20170119_203451.jpg (22.0 KB, 188 views)
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  #117  
Old Sat 11 March 2017, 01:06
Borko
Just call me: Techstarve
 
Veles
Macedonia
Here's the Z-axis finished.
Attached Images
File Type: jpg IMG_20170205_134532.jpg (24.8 KB, 155 views)
File Type: jpg IMG_20170225_210328.jpg (31.1 KB, 155 views)
File Type: jpg IMG_20170225_210419.jpg (31.2 KB, 154 views)
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  #118  
Old Sat 11 March 2017, 01:33
Borko
Just call me: Techstarve
 
Veles
Macedonia
Building belt gearboxes

I used Dimitry's .dxf files for belt reduction gearboxes laser cut parts but with my modification. In my case, T5 pulley shaft supports are on both sides with bearings into plates. Reduction ratio 3:1.
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  #119  
Old Sat 11 March 2017, 01:37
Borko
Just call me: Techstarve
 
Veles
Macedonia
Here the building progress in pictures.
Attached Images
File Type: jpg IMG_20170205_134603 - Copy.jpg (21.6 KB, 154 views)
File Type: jpg IMG_20170205_134623.jpg (22.7 KB, 154 views)
File Type: jpg IMG_20170205_134747.jpg (22.7 KB, 155 views)
File Type: jpg IMG_20170205_135030.jpg (20.6 KB, 155 views)
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  #120  
Old Sat 11 March 2017, 01:39
Borko
Just call me: Techstarve
 
Veles
Macedonia
More pics.
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File Type: jpg IMG_20170225_210717.jpg (25.7 KB, 155 views)
File Type: jpg IMG_20170225_212056.jpg (21.0 KB, 155 views)
File Type: jpg IMG_20170225_210818.jpg (30.2 KB, 154 views)
File Type: jpg IMG_20170225_214512.jpg (33.4 KB, 155 views)
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