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  #1  
Old Sun 11 December 2011, 08:16
shulio
Just call me: Ivo
 
Sofia
Bulgaria
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Starting build 2800x2100 - Bulgaria, Asparuhovo

Hi my name is Ivo. First of all sorry for my bad english.

I am from Bulgaria and have interest in building cnc from 5-6 years. I have made 1 cmc, but it was very amateur project. I have now time and some money to start a nicer and bigger build. About a year ago i discover this forum and start reading and reading and i remember that in my pc i have some file with "mechmate" in filename - search for it and voala - plans for mechmate. Now i start to buy things for my mashine. Here is what i plan to do - say if i am wrong

10. Base Table i do from rectangular tube

20. Gantry i do from C lasier 200mm on one side 75 on the other - 25kg/meter

30. Y-Car - in my version of mechmate plans i have .dxf files of lasercut parts. I send them to local laser and bending company and he said it is no problem to do the job. The support of Y plan to be 100/50/3 or 4mm rectangular tube

40. Z-Slide - same as in the plans but with trapezoid screw and nema23 motor, because i already have 4 of them

Motors & their mountings - 3 pieces of nema34 6Nm 1.8* step for X and Y and nema23 3.1Nm for Z and A axis. For X and Y i do Obuhus's reductions

Rails & Rollers - i plan to make rollers in local lathe workshop using this plan

http://www.mechmate.com/forums/attac...1&d=1316512754

with 2 pieces of 6001 bearing on each roller. Planning price is 100$ for complete set of 14 rollers

Rack and pinion - want to use mod1 or 1.5 from http://www.chiaravalli.com/ - they have a local supplier in my country. The price is about 60$ for 3 meter mod 1 rack. If i use mod 1 what pinion i should use - 20 theth or 24

So this is the questions i have my self answered with reading forum and looking in the plans.

Starting this week and planning date of finish is 9.2012, because of money problem
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  #2  
Old Sun 11 December 2011, 09:09
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Use the 24 tooth pinion with mod1
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  #3  
Old Tue 13 December 2011, 09:09
shulio
Just call me: Ivo
 
Sofia
Bulgaria
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Thanks Gerald
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  #4  
Old Thu 05 January 2012, 15:15
shulio
Just call me: Ivo
 
Sofia
Bulgaria
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Hi all! Today my parts arrive from lasercut company. Looks all is OK, but we will see that in the future. I ordered only 1 set of motor mounting block with drawings from Dimitry's belt reducer. I will try to reproduce Dimitry's reducer from this drawing

http://www.mechmate.com/forums/attac...1&d=1253130057

if i have success then i will order another 2 sets of mounting plates and the rest of parts. I checked for timing belt and pulleys localy and find 20 tooth, 60 tooth pulleys at 16mm wide and 355mm belt T5.

And here is my lasercut parts. They cost me about 105$ for now
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File Type: jpg lasercutshulio2.JPG (71.7 KB, 1036 views)
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  #5  
Old Mon 09 January 2012, 12:52
shulio
Just call me: Ivo
 
Sofia
Bulgaria
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Hi again! I need advice for the stepper motors. I can buy this steppers from here ( Sofia, Bulgaria) for about 100$ for 1 piece. Are they going to do the job in MM project, or i need to search for another options.
Attached Files
File Type: pdf 85BYGH450B-06D-15J.pdf (64.1 KB, 142 views)
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  #6  
Old Mon 09 January 2012, 16:13
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
Will work great, 2.2mH is nice low inductance and the holding torque is 5.8Nm
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  #7  
Old Tue 10 January 2012, 09:32
shulio
Just call me: Ivo
 
Sofia
Bulgaria
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hvala Danilo. I will buy 3 of them and try to assemble belt reducers and post the report here
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  #8  
Old Tue 10 January 2012, 09:33
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
You need 4 motors. X1, X2, Y and Z
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  #9  
Old Tue 10 January 2012, 10:05
shulio
Just call me: Ivo
 
Sofia
Bulgaria
Send a message via Skype™ to shulio
Yes i know that, but i will try something

Z will be with ballscrew or trapezoidal screw, - don't know yet.

I will try on Z axis nema23 3.1Nm stepper motor, because i already have 4 of them. If i have trouble with this configuration i go for nema34 in Z axis too.
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  #10  
Old Tue 10 January 2012, 10:19
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
If you use screw on Z axis I think that 3Nm will be enough.
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  #11  
Old Fri 19 October 2012, 06:59
sensei
Just call me: lubo
 
varna
Bulgaria
zdravei ivo kazvam se liubo ...az i edintvoi adash sme se zahvanali s sa6tata zada4a...molqte napravi vrazka s nas ili dai nqkakvi kordinati moite sa shan.shel@abv.bg 0898353175 s zdrave
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  #12  
Old Fri 19 October 2012, 21:26
KenC
Just call me: Ken
 
Klang
Malaysia
Ivo, Nema23 + ball screw is useless at the Z-axis. I had loose step problem with it.
NEma34 worked flawlessly.
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  #13  
Old Wed 31 October 2012, 14:20
Hardouin
Just call me: Hardouin
 
Douarnenez
France
Hello Marko !


I am beginning building my MM and your laser parts looks great and good price. Could you tell me which company did them ?


Thank you !


Hardouin
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  #14  
Old Wed 31 October 2012, 14:50
sensei
Just call me: lubo
 
varna
Bulgaria
http://www.clt.bg/ cheers
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  #15  
Old Wed 31 October 2012, 17:50
Hardouin
Just call me: Hardouin
 
Douarnenez
France
thank you !
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  #16  
Old Mon 14 July 2014, 11:46
akelemen
Just call me: Andras
 
Stäfa
Switzerland
Hi Ivo, I am planning to build a MM in Hungary. Do you think that the company which did yours in Sofia would be able to send them to Hungary? Do they still have the plans from you so that if I contact them, they would know what to produce?

Many thanks,
Andras
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