DIY 800x800x300(mm) CNC Routeur
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31 May 2020 09:24 #169497
by macsddau@linuxcnc
Replied by macsddau@linuxcnc on topic DIY 900x900x300(mm) CNC Routeur
After some month, I go back to the design of the machine.
Because it is now very difficult to instal CATIA on a Mac, I have change design software to FreeCAD and learn how to use it.
I had to go from scratch. The design is in progress.
Here some pictures :
the stem :
the carriage
the walk-through unit
the base (LH & RH)
The base profile is 30x30 with 8mm slots.
for the first build, the dark red plate will be made in 15mm plywood for concrete.
The strokes are now 900x900x300. I have change the title of this subject according to this.
Because it is now very difficult to instal CATIA on a Mac, I have change design software to FreeCAD and learn how to use it.
I had to go from scratch. The design is in progress.
Here some pictures :
the stem :
the carriage
the walk-through unit
the base (LH & RH)
The base profile is 30x30 with 8mm slots.
for the first build, the dark red plate will be made in 15mm plywood for concrete.
The strokes are now 900x900x300. I have change the title of this subject according to this.
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31 Oct 2020 07:49 - 02 Nov 2020 15:40 #187869
by macsddau@linuxcnc
Replied by macsddau@linuxcnc on topic DIY 800x800x300(mm) CNC Routeur
Last days, I work again on the machine design.
The last design allow me to raise the strokes. Values are now 900x900x320mm.
I get an estimate of the mobile part mass, and I was worried about stepper motors capacities. So I make a simplified calculation. I give you the worksheet (in a zip file). It is a long time (25 years) that I made this kind of calculation so there must be mistakes. The first one is that I don't use scalar numbers.
Removed (a lot of mistakes)
Safety factors a good so I hope that motors will work fine but they are not so good because of the 22mH phase inductance.
The last design allow me to raise the strokes. Values are now 900x900x320mm.
I get an estimate of the mobile part mass, and I was worried about stepper motors capacities. So I make a simplified calculation. I give you the worksheet (in a zip file). It is a long time (25 years) that I made this kind of calculation so there must be mistakes. The first one is that I don't use scalar numbers.
Attachment not found
Safety factors a good so I hope that motors will work fine but they are not so good because of the 22mH phase inductance.
Last edit: 02 Nov 2020 15:40 by macsddau@linuxcnc.
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24 Nov 2020 19:21 #190214
by macsddau@linuxcnc
Replied by macsddau@linuxcnc on topic DIY 800x800x300(mm) CNC Routeur
Hi,
Now, I'v got a good idea of what the router will be able to do.
I have check the calculation (.ods in the .zip).
The bad news is that the NEMA 34 11,3Nm that I have are not so good. I will have to replace them with this one in the calculations.
Now, I'v got a good idea of what the router will be able to do.
I have check the calculation (.ods in the .zip).
The bad news is that the NEMA 34 11,3Nm that I have are not so good. I will have to replace them with this one in the calculations.
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24 Jul 2022 14:13 #248169
by macsddau@linuxcnc
Replied by macsddau@linuxcnc on topic DIY 800x800x300(mm) CNC Routeur
Hi,
New mechanical computations (ODS file in a zip) for the router.
Its basic. No cutting force...
New mechanical computations (ODS file in a zip) for the router.
Its basic. No cutting force...
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