Originally Posted by
Tony_Stark
Thanks Mactec. Understood. Will go for C section/channel.
Peter thanks for the heads-up. I now understand, I will lift the height further and having multiple holes can give me flexibility later. Now as I am getting near to design completion I am now thinking of other small parts. What type of coupling should I use to couple the motor to the ball screw. I can see there are 2 types available in the market.
i forgot to answer the column thickness, its 15mm.
One which has single aluminium cylinder with slots/splines cut across and the other one looks like a two part coupling. Both are called flexible coupling. The single body aluminium one is cheaper than the 2-part types.
Also, what about limit switches. Is the switch shown here is ok to use. 2 on X and Y and 1 on Z? I read people using hall effect limit switch. I could not find any online. Some use proximity sensor, costly option.
Today I received ball screws, nuts, rails and guides plus end supports. The ball screw is unmachined one. I need to machine the ends carefully. I checked the data sheet but I didn't find the nut dimensions of the BK15 coupling end support. I need to make a thread on the ball screw at coupling end and I was wondering what thread and pitch it would be. I will be making it through thread die as I am not good with lathe thread cutting.
I checked the guides on the rails. They are smooth,no play. Little draggy so I guess I need to grease them well. I haven't bought screw nut mount(housing), I will be making those. That should not be big deal. Ready made ones are pushing the cost higher.