Reducing costs

[Lee Roberts]

6 posts in six years? Tried to sell it partially built? What relevant's does this have to my question about using 2 nema 17 on a 4 axis machine ? I sold my first 3 axis carcass true , but had forgotten I had alredy asked about Chinese moters , please note 4 axis as I understand it = 2 moters on the y (?) Axis I thought 2 17 moters in sync would be =to the job , obviously not but still your answer was the only one anywhere near to my question.
So thanks!

I did wonder the same myself Tony and understood it to mean dual motor, single axis, I'm quite familiar with the Rockcliffe machines as I built a model A A few years ago now. Sorry about the response you received from others.

Have a search on the forum if your thinking about the TB driver system as there is two threads I know of that talk about this board, if it's another board let us know which and we may be able to advise, get yourself nema23 motors the 3Nm version, they cost more I know but they will serve you well and allow you to make use of them in the future if you do decide to build something new and quite a bit more substantial, their pretty much the "go too" motor for these machines.

.Me

[tonygagey]

Well bullit bit! Ordered system 4 from roy at diycnc. Just waiting for him to post when power supply in.
Also going to build new carcase using Dave Gatton's Sidewinder plans. To ensure accuracy I am having the plans made as a pattern laser cut in 2mm steel. Expensive but I think it will be worth it !

[JAZZCNC]

To ensure accuracy I am having the plans made as a pattern laser cut in 2mm steel. Expensive but I think it will be worth it !

WHAT.!! . . . Are you for real.! Your going to waste money laser cutting steel templates to build a machine made from PAPER.!!

For the price of the laser cutting/templates you could buy all the steel needed to build the frame and have 50X stronger machine. Bolt it together if you cant weld or have someone weld it for you.

Also can I just say you are going about this all wrong regards the electronics. Roy's stuff is ok but it's more suited to smaller machines like Mills not routers. This is because the drives are low voltage with a Max of 40Vdc I believe. Routers run much higher feed rates than mills so we need more speed from the motors and steppers get there speed from volts. 40V max drives will be restrictive to a router machine unless you use a high pitch ball or lead screw and this will lower resolution so your getting a unbalanced machine.

Trying to cut costs on electronics is asking for trouble and never ends well.!!

[phill05]

Are you for real.!

Also can I just say you are going about this all wrong regards the electronics. Roy's stuff is ok but it's more suited to smaller machines like Mills not routers. This is because the drives are low voltage with a Max of 40Vdc I believe. Routers run much higher feed rates than mills so we need more speed from the motors and steppers get there speed from volts. 40V max drives will be restrictive to a router machine unless you use a high pitch ball or lead screw and this will lower resolution so your getting a unbalanced machine.

Trying to cut costs on electronics is asking for trouble and never ends well.!!

It's not all about speed!!! From many years experience working Roy's 40Vdc drives I am on 1405 screws round supported rails, I profile 12 to 20mm aluminum with DOC of 2 to 3mm with great success also 2.5D relief's in aluminum & stone with DOC up to 4mm so I don't understand how you come to say "you would have an unbalanced machine" just not so there is no problem with Roy's drives.
For what the OP wants System 4 is a great system to use.

usual disclaimer only a very satisfied user.

Phill