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  #31  
Old Sat 30 March 2019, 08:14
bachaabdelkabir
Just call me: Abdelkabir
 
Casablanca
Morocco
Thank you again Robert

I will focus my effort to find a solution for this !
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  #32  
Old Mon 20 May 2019, 00:34
bachaabdelkabir
Just call me: Abdelkabir
 
Casablanca
Morocco
Hi all,

Finally, I am back again to work in the machine, so I taught I would share some of the advancement.


--> I found a solution for the previous problem of the damaging that was happening to the V-groove wheels bearings. As it turned out that this was due to fabrication tolerance. In fact no matter how careful is the method of the insertion of the bearing, once it is inserted it stops turning smoothly. So i grinded the inside of the wheel a little bit with a Dremel tool using a sanding bit. Then I applied some Loctite glue and the problem was gone.


-> I redid one of the X rails as it was a little bit out of tolerance. For that, i bought a melamine white panel as Guille and Mike adviced in previous posts.

--> transferred the holes from the old rail to the new one.

--> I also welded the Y-car.

I have now a rolling X and Y axis. Here you go a link to a video showing the advancement
https://youtu.be/lYa0f33XdGE

Best regards.

And here are some pictures :
Attached Images
File Type: jpg Y-car1.jpg (179.6 KB, 182 views)
File Type: jpg Y-car3.jpg (180.7 KB, 179 views)
File Type: jpg Y-car2.jpg (155.3 KB, 179 views)
File Type: jpg x_rails_hole_transfer_2.jpg (153.4 KB, 176 views)
File Type: jpg x_rails_redid.jpg (128.6 KB, 177 views)
File Type: jpg overall.jpg (140.9 KB, 179 views)
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  #33  
Old Mon 20 May 2019, 05:15
jhiggins7
Just call me: John #26
 
Hebron, Ohio
United States of America
Nice progress, motion looks smooth.
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  #34  
Old Thu 23 May 2019, 15:19
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
Bravo !
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  #35  
Old Tue 28 May 2019, 10:26
bachaabdelkabir
Just call me: Abdelkabir
 
Casablanca
Morocco
Rack attached to rail

Hi

Some progress

- The Y rail rack is attached
- X rails racks in pgrogress

I also ordered the following :

- 2 x Clearpath Servos CPM-SDSK-2310S-RQN for the X-axis
- 4 x 5:1 Timing belt reduction Kits
- 1 x Acorn Centroid Controler

Waiting for these orders to arrive, I will work on CAD for the Servos plates adaptation (NEMA 23 version). I will post some pictures for the CAD solution once completed for criticism.

Best regards.
Attached Images
File Type: jpg Y-rail_rack_attached.jpg (109.3 KB, 141 views)
File Type: jpg Y-rail_rack_attached2.jpg (150.8 KB, 141 views)
File Type: jpg Y-rail_rack_attached3.jpg (144.0 KB, 142 views)
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  #36  
Old Wed 29 May 2019, 21:09
xraydude
Just call me: Ted #131
 
New Orleans, LA
United States of America
Looking great! I was too scared to mount my racks to the rails off of the table. I had to rig up a clamping system to get them close then slowly stick them on with the rails already mounted on the table. That 3M tape doesnt mess around! Keep up the good work.

Ted
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  #37  
Old Thu 30 May 2019, 05:49
bachaabdelkabir
Just call me: Abdelkabir
 
Casablanca
Morocco
Thanks a lot Ted . It is indeed a scary process.
I didn't find the 3M tape hear in Morocco. I found one of BISON that i will try as a replacement. Link :

Some other updates :
- The package containing the Acorn controller has arrived to Morocco and it is now blocked in the airport because I must find a way to clear the customs declarations.

- As for the Servos they are still in transit

- The Timing belt are still not shipped from china

Best regards
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  #38  
Old Fri 23 August 2019, 03:51
bachaabdelkabir
Just call me: Abdelkabir
 
Casablanca
Morocco
Hi all

Sorry for not being able to post in the last months.

Here is an update of the build !

- The painting job was done last month.
- Adaptation plates were designed and tested
- Motion was tested using an old Nema 23 stepper
- Chaine carriers were purshased (used) and installed.
- Technic Clearpath Servo were tested using the manufacturer's software but cables are not yet made (I didt'n purshase them to save extra money).
- A control box containing Centroid Acorn system was wired and tested using stepper.
Attached Images
File Type: jpg img_20190701_134346.jpg (225.9 KB, 83 views)
File Type: jpg img_20190701_172543.jpg (234.9 KB, 85 views)
File Type: jpg img_20190704_143914.jpg (257.9 KB, 82 views)
File Type: jpg img_20190704_150616.jpg (239.1 KB, 85 views)
File Type: jpg img_20190822_202421.jpg (235.7 KB, 86 views)
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  #39  
Old Fri 23 August 2019, 16:04
xraydude
Just call me: Ted #131
 
New Orleans, LA
United States of America
Abdelkabir, great to see the progress! Any pics of the control box?

Ted
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  #40  
Old Sat 24 August 2019, 18:52
bachaabdelkabir
Just call me: Abdelkabir
 
Casablanca
Morocco
Hi Ted

Here are some pics for the control box
Attached Images
File Type: jpg Webp.net-resizeimage.jpg (271.3 KB, 64 views)
File Type: jpg Webp.net-resizeimage (3).jpg (278.6 KB, 65 views)
File Type: jpg Webp.net-resizeimage (4).jpg (243.4 KB, 66 views)
File Type: jpg Webp.net-resizeimage (5).jpg (243.6 KB, 68 views)
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  #41  
Old Thu 29 August 2019, 19:04
xraydude
Just call me: Ted #131
 
New Orleans, LA
United States of America
Abdelkabir,

Are you running those transformers in parallel? What voltage are the secondaries?

Ted
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  #42  
Old Thu 29 August 2019, 23:50
bachaabdelkabir
Just call me: Abdelkabir
 
Casablanca
Morocco
Hi Ted

I am running them in series. Each one of them is rated to deliver 12V on nominal current and 21V open circuit. So in series, I get 42V.

When running one of the servos I get 20 V in each one them (40V).

I have two others in the same specs in the shelf in case the first ones drop in voltage significantly.

Abdelkabir.
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