[EgyptianCNC]

Hello everybody

this is my new CNC project working on it with 3 other guys

The table is made from Steel I-Beam 8mm Thick

Machine Size: 190 x 320 x 35 cm

Working Size X,Y,Z : 150 x 260 x 20 cm

Spindle: 4.2KW, Water-Cooled, ER20 (tool size: 1/16", 3/32", 1/8", 3/16", 7/32", 1/4",
5/16", 11/32", 3/8", 13/32", 7/16", 1/2" )

Water Pump With Tank

Spindle Speed: 0-24000rpm with VFD, Delta Inverter VFD055B23A

Z axis driver: Stepper Motor Nema 34, 122kg-cm Holding Torque 6.2A
Z Motion : BallScrew 25mm , Square Guide Rail 25mm HIWIN

X axis driver: Stepper Motor Nema 34, 214kg-cm Holding Torque 6.5A
Z Motion :Rack&Pinon with Gear ,Square Guide Rail 25mm HIWIN

X axis driver: Double Stepper Motor Nema 34, 214kg-cm Holding Torque 6.5A
Z Motion : Double Rack&Pinon with Gear , Square Guide Rail 25mm HIWIN


and here is some pictures

would like to hear your ideas , is it good to have my Z Axies made from Steel or Aluminium , will keep update topic

one more thing , how good is this Delta VFD-B Series nverter for 4.5KW Spindle
Thank you

[Bl@ckrat]

Hello everybody



Machine Size: 190 x 320 x 35 mm

Working Size X,Y,Z : 150 x 260 x 20 mm

erm ... you mean cm ? not mm ...

working size 1500x2600x200mm

looking good, what pitch on the ballscrews ?

[EgyptianCNC]

sorry about that i fixed it , the ballscrew is just for the Z and it's 2510 type , not really sure how to calculate the pitch

[matth]

sorry about that i fixed it , the ballscrew is just for the Z and it's 2510 type , not really sure how to calculate the pitch

2510 = 25mm diameter and a 10mm lead / pitch.

[EgyptianCNC]

thx , i'm not eng just paying eng to do this stuff for me

[IN-WondeR]

All in all your design is ok. But there is some issues from the pictures you have posted.

The crossmembers on the table, are they made only of flat steel, or is it tubes?
The I beams are not a bad choice, although I would have gone for something with bigger top and bottom surfaces, but for the way your rack and pinion is going to sit, I guess a HEB beam would not have been a good choice.

I would however have set the legs a bit further under the machine to prevent the I beams from saggin in the middle, and to have a smaller gap between the legs...

The setup should be stiff enough, but you need some leveling feet to make sure the machine will be perfectly levelled of when finished.

Good luck with your build.

[EgyptianCNC]

well thank you for your answer

the cross members will be tubed 8x4cm i will put like 10 of them and i'm thinking to add another I-Beam in the middle to support the cross members from under that mean i will add 320cm of I-Beam more

do you think i should add another leg between the other 2 legs like the 190cm and under it 2 legs 40cm each ?


not sure if i understand what you mean by set the legs a bit further under the machine to prevent the I beams from saggin in the middle


about the leveling feet i'm thinking to add it also , but still waiting for the mechanical parts to arrive


one more question , which gauges should i buy to help to set the machine level and everything

torque wrench

dial indicator

dial test indicator

caliper


and Digital or Dial or normal is better

Thank you

[EgyptianCNC]

well i bought mitutoyo Dial indicator and test indicator to use it on setting the machine good , and fix the travels and any future uses

Attachment 228826
Attachment 228828
Attachment 228830

is it good resolution , and it's mm since i'm not used to inch