Nema 23 Plates

discussion of design changes / improvements / suggestions
Post Reply
Brian
Posts: 78
Joined: Sat Jan 25, 2014 8:42 pm
Location: Saint Louis

Nema 23 Plates

Post by Brian » Sun Nov 16, 2014 7:42 pm

Well I decided to upgrade to some nema 23 steppers on my shapeoko 2 and while the factory plates have the necessary bolt holes for the larger steppers i decided to ramp up the design. I cut these plates out of some 3/16 alum after i removed all the nema 17 holes and moved the idlers in more closer to the stepper so the belt will engage more teeth. Haven't finished the install but so far everything is going together nicely.
20141116_133234ll.jpg
20141116_133234ll.jpg (181.98 KiB) Viewed 2026 times
20141116_133242jj.jpg
20141116_133242jj.jpg (136.76 KiB) Viewed 2026 times
20141116_133250;;.jpg
20141116_133250;;.jpg (193.8 KiB) Viewed 2026 times
Brian
Shapeoko 2 #I have no idea
HF cutout tool, 72oz nema 17 steppers, TB6600 stepper drivers, Mach3 control

LouisV
Posts: 316
Joined: Fri Dec 13, 2013 3:41 am

Re: Nema 23 Plates

Post by LouisV » Mon Nov 17, 2014 12:00 am

Looks very nice. The cuts look really clean. What router and emdmill were you using? Cutting aluminum is what my machine does 75% of the time so I'm always curious with what tools other people use as well as their experiences.

Brian
Posts: 78
Joined: Sat Jan 25, 2014 8:42 pm
Location: Saint Louis

Re: Nema 23 Plates

Post by Brian » Mon Nov 17, 2014 4:11 am

Those plates were actually cut on my CNT 950 router i use at work. 24000rpm spindle, single flute carbide 1/8" and 1/4" endmills running at 100 and 140 IPM. About .125' DOC.

I am upgrading and reinforcing so that I can cut aluminium more efficiently/cleanly. I was running it pretty quickly before and noticed it was missing steps and flexing so Im trying to resolve that.
Brian
Shapeoko 2 #I have no idea
HF cutout tool, 72oz nema 17 steppers, TB6600 stepper drivers, Mach3 control

Brian
Posts: 78
Joined: Sat Jan 25, 2014 8:42 pm
Location: Saint Louis

Re: Nema 23 Plates

Post by Brian » Sun Nov 30, 2014 6:25 am

Here are some shotty update pictures. Still need to wire the new steppers and adjust the amp output on the drivers before i can do any stress testing but im confident in the design. Also added some homemade side plates to protect the belt drive system. Enjoy:
20141128_183653.jpg
20141128_183653.jpg (390.64 KiB) Viewed 1890 times
20141128_183640.jpg
20141128_183640.jpg (359.18 KiB) Viewed 1890 times
20141128_183634.jpg
20141128_183634.jpg (293.27 KiB) Viewed 1890 times
Brian
Shapeoko 2 #I have no idea
HF cutout tool, 72oz nema 17 steppers, TB6600 stepper drivers, Mach3 control

LouisV
Posts: 316
Joined: Fri Dec 13, 2013 3:41 am

Re: Nema 23 Plates

Post by LouisV » Sun Nov 30, 2014 3:24 pm

It looks very nice. I really like the work bed too, I want to do something similar to that for mine but it'll probably cost a pretty penny considering the size. :?

Your machine is no doubt more rigid than the stock machine, have you thought about upgrading to the acme screw ? It would be a nice compliment to your more robust motor plates.

Brian
Posts: 78
Joined: Sat Jan 25, 2014 8:42 pm
Location: Saint Louis

Re: Nema 23 Plates

Post by Brian » Sun Nov 30, 2014 8:30 pm

LouisV wrote:It looks very nice. I really like the work bed too, I want to do something similar to that for mine but it'll probably cost a pretty penny considering the size. :?

Your machine is no doubt more rigid than the stock machine, have you thought about upgrading to the acme screw ? It would be a nice compliment to your more robust motor plates.
No money in the budget right now for the acme screw although id like one. Tons of other projects that are more important at the moment.

Thanks, I love this little machine.
Brian
Shapeoko 2 #I have no idea
HF cutout tool, 72oz nema 17 steppers, TB6600 stepper drivers, Mach3 control

Brian
Posts: 78
Joined: Sat Jan 25, 2014 8:42 pm
Location: Saint Louis

Re: Nema 23 Plates

Post by Brian » Sun Dec 07, 2014 10:18 pm

Well thanks to another member I have a acme z axis on the way. Ive drawn up a belt drive plate with a 2-1 reduction to go along with it. High fives all around.
Brian
Shapeoko 2 #I have no idea
HF cutout tool, 72oz nema 17 steppers, TB6600 stepper drivers, Mach3 control

Post Reply