Thank you very much for your answer. I am currently doing an experiment where I try to determine the water concentration in a dry air / water vapor mixture. I am measuring a "parameter" and I want to link the values of this parameter to the water concentration inside my system.
I work in a...
I am trying to find the water concentration in ppmv of an air mixture and determine the effect of lowering the total pressure of the mixture on this water concentration.
Firstly, I would like to know if the formulas used to find the ppmv value are correct. Here's my procedure:
Working...
I am trying to find the water concentration in ppmv of an air mixture and determine the effect of lowering the total pressure of the mixture on this water concentration.
Firstly, I would like to know if the formulas used to find the ppmv value are correct. Here's my procedure:
Working...
So here how it looks like:
There is 17.5mm between the end of the tool and the toolholder.
I have noticed when my end mill was totally jammed inside my workpiece that it was no longer tight and fixed inside the collet. I could lift my Z axis and the end mill would not follow.
Concerning the machine, it is indeed the http://www.alibaba.com/product-detail/Mini-Wood-Router-China-CNC-Machine_1257750803.html.
So I tried another milling operation with 4500 rpm. The damn thing stop and the fuse blew after about 3 seconds.
During my first two attempts, I did get pretty...
I just bought a Chinese 3040 230W engraving CNC machine and have recently been struggling with milling operations on aluminium as you can see on my previous forum posts. I am trying to cut through a 4.3 mm thick aluminium box with a TiN coated carbide 2 flutes 42degree end mill with the...
Sorry for the pictures,
Please check the following links:
http://i58.tinypic.com/25srepk.jpg
http://i62.tinypic.com/10or4w6.jpg
http://i57.tinypic.com/2nuip0g.jpg
http://i62.tinypic.com/12554l1.jpg
http://i61.tinypic.com/2wme1kk.jpg
http://i60.tinypic.com/1jazcp.jpg...
I just bought a small three-axis Chinese CNC machine, the 3040Z-DQ. I have no experience with CNC milling or any other machining operations. I am trying to cut a 0.56 in (14.3 mm) by 0.52 in (13.3 mm) rectangular profile through a 1/20 in (1.27 mm) aluminium plate. I am not sure which type of...
So slowing down the max speed did help but the motor still seems to skip (1-2 times per X or Y passes). As mcgyvr mentioned, I think it just masks the problem.
Thank you guys for your help.
They are indeed step motors. I've followed the Mach3 configuration from the manual but I suspect that additional tweaking is required. I'll try to slow down the motors and keep you guys posted.
I just bought a Chinese 3040Z-DQ 230W Four Axis Ball Screw CNC and followed the instruction from the manual to configure the machine with Mach3.
I started testing the machine with simple X Y Z commands using Mach3 and my keyboard and noticed some really rough noise and experienced motor...
