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And what did we buy today?
And what did we buy today?
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Old 7th July 2018, 03:02 PM   #1341
Dave R is offline Dave R  United States
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Quote:
Originally Posted by planet10 View Post
You have to bring them to diyFEST?

dave
Will do.

I'm also adding a pair of 15" U-frame bass units, as these coax drivers only reach down to 90~100 Hz by themselves. The bass units will be included for the PNWAS speaker contest, but may not have room for the carpool to diyFEST. I'll see if I can make them more portable (maybe screwed together flat pack?). hmmm . . .
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Old 12th July 2018, 09:06 PM   #1342
ODougbo is offline ODougbo  United States
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Best circle cutters made for 8'' holes and smaller.
70 years old - hard to believe.

Made in Beverly Hills California (and I was just there btw).


cutter.jpg
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Old 12th July 2018, 11:13 PM   #1343
nigelwright7557 is offline nigelwright7557  United Kingdom
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Ordered a pcb for my own design digital PC USB scope today from PCBWAY.
Ordered the parts for the pcb from Farnell and RS Components.
I am using a PIC32 that runs very fast and has a fast a2d converter.
I am using Microchip Harmony for the basic software so will be interesting to see if I can get it to work.
I am more used to 8 bit processors and the PIC32 is full of 32 bits registers with special function registers that need every bit set correct to work properly.
Keeps me out of mischief.
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Old 12th July 2018, 11:16 PM   #1344
Pano is offline Pano  United States
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And what did we buy today?
I've owned a couple of hole cutters like that - but more recently made. Never had good luck with them. Yours work well?
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Old 13th July 2018, 09:30 AM   #1345
yngvejos is offline yngvejos  Norway
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Bought a JBL flip 4 yesterday. Great little speaker to get some music on vacation.
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Old 13th July 2018, 02:05 PM   #1346
Mr_Zenith is offline Mr_Zenith  United States
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And what did we buy today?
Quote:
Originally Posted by Pano View Post
I've owned a couple of hole cutters like that - but more recently made. Never had good luck with them. Yours work well?
Can't speak for ODougbo, but I've personally had excellent results with both wood and aluminum using flycutters (as they're usually called). They can be extremely dangerous if used improperly, however.

The keys to success - and safety - are to:
  1. Only use these in a drill press, and make certain the blade is sharp.
  2. Clamp the workpiece securely to the press table, using a sacrificial surface underneath.
  3. Make certain that all adjustment screws are secure before tightening the chuck.
  4. Use a press speed (rpm) appropriate to the material you're cutting.
  5. Feed the cutting blade slooooooowly into the workpiece. Let the blade do all the cutting.
It does take skill, but with a little practice you can achieve excellent results - and without sawing your arm off (it happens)....
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Old 13th July 2018, 02:58 PM   #1347
soundbrigade is offline soundbrigade  Sweden
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Quote:
Originally Posted by Pano View Post
I've owned a couple of hole cutters like that - but more recently made. Never had good luck with them. Yours work well?
I have been using them and they requires some work to work perfectly. I always drill/cut from both sides.

On one occasion, I left the drill unattended for a few minutes and when I came back, someone had changed the speed of the machine. I was EXTREMELY lucky that the cutter hit the wall behind the machine.

I did buy myself a bottle of red and a bottle of white wine (Italian) and a french soda (pamplemousse).
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Old 14th July 2018, 12:42 AM   #1348
nigelwright7557 is offline nigelwright7557  United Kingdom
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Quote:
Originally Posted by soundbrigade View Post
I have been using them and they requires some work to work perfectly. I always drill/cut from both sides.
I use a piece of wood with two screws in to mark out my speaker holes.
One screw is driven into the centre of the baffle and the other left loose to score a circle. I then get my trusty jigsaw and carefully cut out the circle.
Only got caught out once when a Fane speaker spec gave the wrong baffle hole size ! so now I always measure the actual speaker.
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Old 14th July 2018, 02:36 AM   #1349
TheGimp is offline TheGimp  United States
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$0.99/lb roasting hen.

Tasty.
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Old 14th July 2018, 05:28 AM   #1350
leadbelly is offline leadbelly  Canada
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Went down to our "upper" Chinatown trying to get a ready-made Chinese birthday cake for my wife, but failed. Lots of cheap meat at the butcher though, my mother-in-law bought things like pigs feet and pork spine for the bargain sum of $71.

Then scored an old copy of The Calgary Gardener, Vol 2 to give her. Yes, we have our own book, you would not believe how hard our climate is on green things, despite being the sunniest city in Canada.
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