Thread: Best Linear rail mounting set up
Please help me choose which of these mounting positions is better. This is for a woodrouting 1200mm x 900mm x 120mm CNC.
20mm THK Linear rails and trucks
1/2"-8 4 start Roton Acme screw
(1) 425 oz-in HobbyCNC Motors(3NM)
Luc's THB6064AH driver http://www.ecomorder.com/techref/ecomprice.asp?p=416074
44v Power supply
6"(150mm) Channel bar which allows the rails to be mounted at a good 112mm apart. Very heavy. The gantry will weigh close to 80lbs(37kg). Which brings me to another question - will the above single(stepper)/drive combo move this heavy gantry reasonably?
This is a 4"(100mm) channel bar with the rails positioned as shown. If I mount them(rails) like in the 6" channel bar, a mere 56mm separates them. 10 to 12lbs lighter that the first.
Thank you in advance for your answers.
Last edited by j2sip; 15-07-2014 at 08:28 AM.
Both setups would work perfectly fine as these rails are designed to work in both those positions carrying much more load, 36Kg is nothing, these rails won't even know they are carrying 36Kg.
You'll rarely cut at this speed so will have more than enough torque when cutting.
http://www.elab.ph/forum/index.php?topic=35151.100. Sorry mostly in our language. Cheap used linear rails started popping out in the local market so I thought of another upgrade. Well, thank you so much for your input. I'll post pictures as soon as I commence building again.
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