DCAudioDIY.com

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Walt

I will take all advice folks want to post and consider it. That has been shown in this thread more than once.

So far, the advice now is building a mounting hole drilling templates for this stage and waiting on materials. The aluminum is on order for the two drilling templates. Folks have offered to help with making the templates.

Is there a competing idea that is not being discussed? If so, have at it. Besides that, I like Rocket Science.

Using Wolfram's Mathmatica on the Raspberry Pi 3, have the notebook working that calculates the time delays required for the dspMusik digital crossover for the BG Neo10 planar drivers. Will do another section in the code for the BG Neo3-PDR's.

The normal home PC version of Mathmatica is $249. The Raspberry Pi 3 is $35, SMPS is $8, The Raspian OS is free for download and $13 get you a 64GB MicroSDXC boot drive. Total cost is $56. That is a very good reason to me to get one.

Building the last 18 moded ChipAmp modules and 9 power supply PC boards as the toroidal power transformers should all be here Monday. Then start drilling holes in heatsinks to mount the amp modules to test them. Will be using the new drilling guide for these to get nice vertical holes!

The BG Neo10 specs and measurements file needed for the template for the drilling guide.

I might be able to use a pair of L brackets and screws to hold the drilling guide to the L to position the drilling guides to make the 1/16" pilot holes in the oak. Could be much simpler than the template, but will have to see when all the guides get here what will work. They all get here Thursday, so will see what happens.

Need to get a new battery for my calipers to measure the 0.370" inset for the hole centers. They are 8.90" apart on the sides.

The drill guide and aluminum plates arrive today.

If my angle bracket jig for the drill guide does not work, then it will be time to make the drilling template. The second angle drill guide works much better than the first, so will use that for the drilling.

Pulled this out of storage and might work well with the drilling guide. No large pilot holes, so this will do.

Drilling guide arrived.

Now to find my digital calipers to start the measuring.

Found the calipers!

Now just need a new LR44 battery and can start the measurements. Time for an outing.

I get all my small batteries from batterybob.com

Tom

Thanks!

CVS has a 3 pack of Eveready 357's for $7.49 and I will pick them up today. Will be measuring this evening after a bunch of outings.