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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, 315 views)
File Type: jpg Y-car3.jpg (180.7 KB, 310 views)
File Type: jpg Y-car2.jpg (155.3 KB, 311 views)
File Type: jpg x_rails_hole_transfer_2.jpg (153.4 KB, 307 views)
File Type: jpg x_rails_redid.jpg (128.6 KB, 307 views)
File Type: jpg overall.jpg (140.9 KB, 307 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, 273 views)
File Type: jpg Y-rail_rack_attached2.jpg (150.8 KB, 273 views)
File Type: jpg Y-rail_rack_attached3.jpg (144.0 KB, 276 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, 215 views)
File Type: jpg img_20190701_172543.jpg (234.9 KB, 214 views)
File Type: jpg img_20190704_143914.jpg (257.9 KB, 210 views)
File Type: jpg img_20190704_150616.jpg (239.1 KB, 218 views)
File Type: jpg img_20190822_202421.jpg (235.7 KB, 218 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, 197 views)
File Type: jpg Webp.net-resizeimage (3).jpg (278.6 KB, 198 views)
File Type: jpg Webp.net-resizeimage (4).jpg (243.4 KB, 202 views)
File Type: jpg Webp.net-resizeimage (5).jpg (243.6 KB, 202 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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  #43  
Old Mon 02 March 2020, 11:26
bachaabdelkabir
Just call me: Abdelkabir
 
Casablanca
Morocco
She's cutting :-)

Hi dear Mechmate community

I would like to annouce that we have made the first job on the machine today. It was wondefull feeling.

Indeed the machine is not 100% complete, but we needed to see the result of a long journey of hard work.

I would like to thank you all for your efforts and for making this project alive.

Best regards.

Last edited by bachaabdelkabir; Mon 02 March 2020 at 11:55..
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  #44  
Old Mon 02 March 2020, 12:20
Robert M
Just call me: Robert
 
Lac-Brome, Qc
Canada
Send a message via Yahoo to Robert M Send a message via Skype™ to Robert M
congrats "mate".....wishing you a fun & fruitful MechMate journey
All the best....
R.
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  #45  
Old Mon 02 March 2020, 17:05
lonestaral
Just call me: Al #114
 
Isarn
Thailand
Send a message via Skype™ to lonestaral
Well done.
Keep up the good work.
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  #46  
Old Tue 03 March 2020, 05:58
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
Well done!!! Moved thread to MM Already Cutting!!
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  #47  
Old Tue 03 March 2020, 07:31
baltaran
Just call me: Balta
 
Valencia
Spain
Excellent job Abdelkabir.

I can see those Clearpath servos nicely fit in your machine.

I wish you all the best with your project and I wish I could visit you one day when I am on holidays in Morocco.

Keep up the good work and all the best to you!!

Last edited by baltaran; Tue 03 March 2020 at 07:39..
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  #48  
Old Tue 03 March 2020, 16:17
xraydude
Just call me: Ted #131
 
New Orleans, LA
United States of America
Fantastic! Now the fun and learning really begins. Congratulations!
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  #49  
Old Fri 10 April 2020, 04:47
MarkRH
Just call me: Mark
 
Maryland
United States of America
Congrats Abdelkabir, how are you liking the acorn clearpath combo? , I am switching to acorn now. Do you find the nema 23 223oz motors strong enough? Does it cut smooth arches?
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  #50  
Old Tue 14 April 2020, 10:16
bachaabdelkabir
Just call me: Abdelkabir
 
Casablanca
Morocco
Hi All

I would like to thank you all for the encouragement.

For Mark : I am very glad that I have chosen the acorn+Clearpath setup,

I would recommend for everyone who is willing to use these servos to spend some good amount of time fine-tuning them. I had some difficulties tunning the X-axis. If it is not it so, it will oscillate and generate some remarkable waves in the cut.

I would also recommend choosing slightly higher torque ones, especially for the X-axis. I remember that it was one-time shutdown signaling by led flashing that peak torque was exceeded wich is a good thing to protect itself. the thing that you will not find in open-loop steppers. It is also so quiet comparing to steppers.

Overall I am very happy with this setup, especially the acorn controller, the software is very professional and centroid tutorials are a good source for training.

I have to mention also that there is a free version of the software but you can not exceed 50 KB of G-code. the unlimited version costs about 140$.

Last edited by bachaabdelkabir; Tue 14 April 2020 at 10:25..
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