Well I give up

Christine88
Posts: 168
Joined: Tue Oct 07, 2014 4:16 pm

Re: Well I give up

Post by Christine88 » Sun Jan 18, 2015 12:31 pm

akhlut wrote:Those are pretty much crap. Poor heat management and a PITA to adjust. Like the rest of their boards. D:

I've sworn by these for a long time now - they have never let me down and I have yet to blow one up. http://www.panucatt.com/product_p/sd8825.htm
Are those not the same thing as the Pololu?

akhlut
Posts: 304
Joined: Wed Mar 27, 2013 1:16 am

Re: Well I give up

Post by akhlut » Sun Jan 18, 2015 1:48 pm

No.

The same way an F117 and an A300 are not the same thing. Both are airplanes, but have wildly different abilities.

The panucatt is designed to sink the heat away from the driver and dissipate it properly. The pololu's simply are not. They want you to stick a heatsink to the IC case and keep the heat IN the IC, like all their other designs. Hot garbage.

I drive my 2A NEMA 23's (57BYGH420's) with panucatts and have a fan on them. Never, ever skipped a step and they run cool as a cucumber.

Damin69
Posts: 331
Joined: Fri Oct 31, 2014 3:00 pm
Location: Muscoda, WI

Re: Well I give up

Post by Damin69 » Sun Jan 18, 2015 3:34 pm

akhlut wrote:No.

The same way an F117 and an A300 are not the same thing. Both are airplanes, but have wildly different abilities.

The panucatt is designed to sink the heat away from the driver and dissipate it properly. The pololu's simply are not. They want you to stick a heatsink to the IC case and keep the heat IN the IC, like all their other designs. Hot garbage.

I drive my 2A NEMA 23's (57BYGH420's) with panucatts and have a fan on them. Never, ever skipped a step and they run cool as a cucumber.
Either way I am glad I moved away from the 8825 drivers and went with the SainSmart drives my self.
Shapeoko 2 #6971
Upgrades
Makita 0701, Nema23s, ACME Z Axis, Nema 23 Belt drive
Expanded to 1000 x 1800
Electronics upgrade C-10 BOB, SainSmart ST-M5045 drivers, Mach3
Damin69's Build Log

Christine88
Posts: 168
Joined: Tue Oct 07, 2014 4:16 pm

Re: Well I give up

Post by Christine88 » Mon Jan 19, 2015 3:48 am

Damin69 wrote:
akhlut wrote:No.

The same way an F117 and an A300 are not the same thing. Both are airplanes, but have wildly different abilities.

The panucatt is designed to sink the heat away from the driver and dissipate it properly. The pololu's simply are not. They want you to stick a heatsink to the IC case and keep the heat IN the IC, like all their other designs. Hot garbage.

I drive my 2A NEMA 23's (57BYGH420's) with panucatts and have a fan on them. Never, ever skipped a step and they run cool as a cucumber.
Either way I am glad I moved away from the 8825 drivers and went with the SainSmart drives my self.
Same here with the Gecko drive.

akhlut
Posts: 304
Joined: Wed Mar 27, 2013 1:16 am

Re: Well I give up

Post by akhlut » Mon Jan 19, 2015 4:18 pm

To each his own. :D

Christine88
Posts: 168
Joined: Tue Oct 07, 2014 4:16 pm

Re: Well I give up

Post by Christine88 » Mon Jan 19, 2015 6:34 pm

akhlut wrote:To each his own. :D
I'll keep the 8825s you recommend in mind in case I want to take another stab at a controller circuit. I sure don't want buy another Gecko.

lioramsalem
Posts: 88
Joined: Mon Jun 09, 2014 1:43 pm

Re: Well I give up

Post by lioramsalem » Fri Jan 23, 2015 1:24 pm

I wired the gshield to a simple BOB yesterday (used a prototype shield and didn't touch the gshield) and now I'm running 2A NEMA23 with Mach3. After some motor tuning, one hour job finished OK.
ShapeOko 2 #5840 w/ NEMA23, ACME Z axe belt upgrade, limit switches, spindle speed control, 400w brushless spindle, 9mm belts, aluminum bed, eShapeoko X carriage and belts system

Build log: http://www.shapeoko.com/forum/viewtopic.php?f=5&t=3650

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