Upgraded to 9mm wide belts

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samc99us
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Re: Upgraded to 9mm wide belts

Post by samc99us » Wed Dec 24, 2014 10:14 pm

Are you guys running NEMA 23's? I looked at switching out my belting and realized I would need to remove the motors to swap the idler pulley fastener, and in order to remove the motor the carriages have to come off!!
Modified Shapeoko 2: 1500mm fully supported y-axis, 1000 mm 4060 x-axis, ACME Belt Drive Z-axis, Dewalt DNP611, full aluminum t-slot table, 4x NEMA23 180 oz/in stepper motors driven by a G540

LouisV
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Re: Upgraded to 9mm wide belts

Post by LouisV » Wed Dec 24, 2014 10:58 pm

samc99us wrote:Are you guys running NEMA 23's? I looked at switching out my belting and realized I would need to remove the motors to swap the idler pulley fastener, and in order to remove the motor the carriages have to come off!!
That's one of the reasons why I did the design changes that I did. There's a lot of benefits on mounting the stepper motors vertical on a smaller secondary plate.

samc99us
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Re: Upgraded to 9mm wide belts

Post by samc99us » Mon Dec 29, 2014 6:54 pm

That's a really great idea Louis. One I've had as well. I need to price out some carbon vs. aluminum, advantage to the carbon for cutting (though it dulls bits fast, time to order some 2 flute carbide 1/8" end mills en mass!), the aluminum will likely be stiffer. Making some new end plates and upgrading my z-axis when I upgrade to the 15mm belts will be SWEET!
Modified Shapeoko 2: 1500mm fully supported y-axis, 1000 mm 4060 x-axis, ACME Belt Drive Z-axis, Dewalt DNP611, full aluminum t-slot table, 4x NEMA23 180 oz/in stepper motors driven by a G540

LouisV
Posts: 316
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Re: Upgraded to 9mm wide belts

Post by LouisV » Mon Dec 29, 2014 7:45 pm

samc99us wrote:That's a really great idea Louis. One I've had as well. I need to price out some carbon vs. aluminum, advantage to the carbon for cutting (though it dulls bits fast, time to order some 2 flute carbide 1/8" end mills en mass!), the aluminum will likely be stiffer.
Yeah, it's amazing the ideas you can come up with when you want to solve a problem. I originally just wanted the belts to be clear of debris so having them mounted on the outside of the extrusion seemed like my best bet. Of course this required me to have the stepper motors positioned vertically on their own separate plate, but the advantages of doing that are more than just keeping the belts clean. ;)
samc99us wrote: Making some new end plates and upgrading my z-axis when I upgrade to the 15mm belts will be SWEET!
Your new z-axis will be glorious! :shock: The CNC gods will surely be pleased.

Gadgetman!
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Re: Upgraded to 9mm wide belts

Post by Gadgetman! » Mon Dec 29, 2014 10:38 pm

You don't need to mount the motors vertically to have the belts on the outside...

I did it with a set of 3D printed pieces of ABS that just moved the motors further out from the mounting plate.
(The pieces can be milled, also)

Here's the thread with info on the spacers I use:
http://www.shapeoko.com/forum/viewtopic ... =20#p16042
Looks nice in black ABS.

Would probably be awesome in transparent ABS, acrylic, or whatever...

Maybe add a blue LED connected to the driver(show that it's energised) and a RED one connected to the endstops...
Weird guy...
Shapeoko 2014F: 1000mm X/Y, 300W Quiet Cut spindle, Arduino Uno/G-shield and GRBL 0.9i
15x30 drag chains, custom spindle mount, 9mm belts, 8mm endplates, 6mm motor plates.

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

Re: Upgraded to 9mm wide belts

Post by LouisV » Mon Dec 29, 2014 10:47 pm

Gadgetman! wrote:You don't need to mount the motors vertically to have the belts on the outside...

I did it with a set of 3D printed pieces of ABS that just moved the motors further out from the mounting plate.
(The pieces can be milled, also)

Here's the thread with info on the spacers I use:
http://www.shapeoko.com/forum/viewtopic ... =20#p16042
Looks nice in black ABS.

Would probably be awesome in transparent ABS, acrylic, or whatever...

Maybe add a blue LED connected to the driver(show that it's energised) and a RED one connected to the endstops...
That's really nice! I like it a lot. Though it was my original intention to just have the belts on the outside, I quickly realized the benefits of having the motors mounted vertically and on their own plate separate from the main plates. My goals and expectations for the machine have been modified as such that I have more than one reason to have the motors mounted vertically.

Your mod is really elegant and it would be very cool with LED lighting. ;)

Gadgetman!
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Re: Upgraded to 9mm wide belts

Post by Gadgetman! » Mon Dec 29, 2014 11:11 pm

Not my mod.

Thank WlanFox, the mounting block was his design.
Weird guy...
Shapeoko 2014F: 1000mm X/Y, 300W Quiet Cut spindle, Arduino Uno/G-shield and GRBL 0.9i
15x30 drag chains, custom spindle mount, 9mm belts, 8mm endplates, 6mm motor plates.

WillAdams
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Re: Upgraded to 9mm wide belts

Post by WillAdams » Wed Jul 22, 2015 1:27 am

groguard wrote: Here is a picture of the new Idlers and pulleys.
Image
What is the maximum distance which the shaft can be inset from the edge of the pulley?

Or, how short is too short for a motor shaft?
Shapeoko 3XL #0006 w/Makita RT0701 Router w/0.125″ and ¼″ Elaire precision collets
Nomad 883 Pro #596 (bamboo)

WillAdams
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Re: Upgraded to 9mm wide belts

Post by WillAdams » Thu Jul 23, 2015 2:29 am

Well, started intalling this anyway.

Aside from the pulley/ shaft issue, (on the Y-axis) things fit and lined up nicely, including the belt clips.

Image

Ordered:

http://www.sdp-si.com/eStore/Catalog/Pa ... 06R51MC090
and
http://www.sdp-si.com/eStore/Catalog/Pa ... -020DF0908

Next up, tensioning the belts.
Shapeoko 3XL #0006 w/Makita RT0701 Router w/0.125″ and ¼″ Elaire precision collets
Nomad 883 Pro #596 (bamboo)

WillAdams
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Location: Pennsylvania --- south of the Turnpike, East of US-15
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Re: Upgraded to 9mm wide belts

Post by WillAdams » Wed Sep 02, 2015 10:51 am

Got this done. Nice improvement. The one glitch is that the Y-axis pulleys have to be partially off the shaft to allow the belts to run true. Planning on reversing the motors and adding spacers to match the X-axis arrangement which is perfect.
Shapeoko 3XL #0006 w/Makita RT0701 Router w/0.125″ and ¼″ Elaire precision collets
Nomad 883 Pro #596 (bamboo)

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