Author Topic: PCB stand offs  (Read 5851 times)

todd432

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PCB stand offs
« on: November 04, 2014, 06:56:23 PM »
Hi
I have a really dumb question

I have a PMDX 126 rev. C BOB, PMDX 134 and a Warp9smooth stepper ESS plus a PMDX 107 spindle card.
I want to mount the ESS on the 126 board to keep the foot print of my control box small as can.

Now the dumb question. What size stand offs and what length should I get for the ESS and the 126 to the case.
And metal or plastic.

THX
Todd

Steve Stallings

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Re: PCB stand offs
« Reply #1 on: November 04, 2014, 10:33:02 PM »
Hi Todd,

Almost all standoffs for electronic PCB applications are 1/4" hex or round
and work with 4-40 or 6-32 hardware.

The PMDX-126 and the SmoothStepper both have holes large enough for
either size hardware, and have sufficient guard rings to allow use of either
metal or plastic standoffs.

We recommend that the PMDX-126 be mounted 1/4" or more above
the wall of the case. The SmoothStepper should be on standsoffs
3/4" or 1" above the PMDX-126.

If you do not have suitable standoffs in your shop, drop us an email
to --  PMDX-support (at) PMDX.com  and will will send you some.

Steve Stallings
www.PMDX.com

Steve Stallings

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Re: PCB stand offs
« Reply #2 on: November 04, 2014, 10:36:53 PM »
Todd,

I forgot to remind you that the on board power supply of the PMDX-126
was engineered before the ESS existed and does not have sufficient
power to run both a PMDX-107 and the ESS. You will need to power the
ESS from an additional independent regulated +5 volt supply.

Steve Stallings
www.PMDX.com

todd432

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Re: PCB stand offs
« Reply #3 on: November 05, 2014, 07:48:27 AM »
Thanks Steve

I did buy a 5v power supply for the ESS.
Electronics is not my strong point in building my CNC ( I suck at it LOL)

My first build I used a G540 then blindly copied someone else design and crossed my fingers.

I am so glad you started a forum. Am  hoping someone will post their design using your products so I may use it as a guide.
Pepole are weary to post due to liability issues, And I understand that.

I have well over a 1000 dollars in parts and pieces with this controller build , I desperately need, a guide or even better a you tube video to assembling my bits and pieces.

I think their are a lot of guys out their, like me that just need a plan to go by and will spend the money if we just had an expert or manufacture trusted design to go by.
I would even take my parts to your shop and have you show/ help me put it together so I could ask the dumb questions during the build. I think it would help me with the understanding of how things work.

Thanks again
Todd