Leaderboard

Here is my grlv power supply built on dip 16 sockets for my dynalo amp, also built on dip 16 sockets and put in an Altoids tin. It outputs +/- 16.7 volts using a couple of 16 vac 30 va transformers which puts 23 vdc into the grlv module. Also built a +/- 30 volt supply with a couple of 25.2 vac 50.4 va transformers and it puts 37 vdc into the grlv module. A second +/- 30 volt supply is pictured open. These are for my balanced dynahi, also built on dip 16 sockets. The grlv dip 16 module has 5 sockets on each side. There are 18 wires connecting 71 pins, each pin has only one wire on it, 9 pins are not used on the ICs. Parts layout and wirelist make it easy to reproduce.

This weekend’s project jumped in front of the chairs. Cousin’s baby came early so making a gift that would be strange for anyone but a cattle farmer and large animal vet. Even incorporated the Dad’s cattle brand at the top. Since many of you are city slickers, this is supposed to be an ear tag for cattle.

Passed the first round of interviewing on my dream job!

80's flashback time then And maybe an excuse to rewatch a Gregory's Girl

copy the following text into notepad for proper spacing format grlv dip 16 layout +30 volt ----A---------B---- | R16 | R1 | |D9+ D1+|Q6E Q3E| |D9- D1-|Q6B Q3B| |Q14C Q1E|Q6C Q3C| |Q14B Q1B| R3 | |Q14E Q1C| + D4 - | | R2 | - C7 + | | R19 | C11 | ------------------- ----C--------D----- |1 8|Q8D Q9B|Q4B | U1 |Q8G Q9C|Q4C D11- | |Q8S Q9E|Q4E D11+ |4 5| R11 | |1 8| R20 | | D6 | C .01 | | | + D - | |4 5| - D + | -------------------- -------------------------------- |C5 C9- C12 C16- R8 R7 C6+ C4.7| E | |C5 C9+ C12 C16+ R8 R7 C6- C4.7| -------------------------------- -30 volt ----G---------F----- | R4 | R15 | |Q10E Q11E|D2- D8-| |Q10B Q11B|D2+ D8+| |Q10C Q11C|Q2E Q13C| | R6 |Q2B Q13B| | + D6 - |Q2C Q13E| | - C13 + | R5 | | C14 | R22 | -------------------- ----I---------H----- Q7B|Q5B Q12D|1 8| D10+ Q7C|Q5C Q12G| U2 | D10- Q7E|Q5E Q12S| | | R12 |4 5| | R21 |1 8| | C .01 | D7 | | - D + | | | + D - |4 5| --------------------------------- |C4.7 C10+ R10 R9 C3+ C15 C8+ C4| J | |C4.7 C10- R10 R9 C3- C15 C8- C4| --------------------------------- wirelist +30 volt 24 AWG solid wire 1. A6 A7 2. A14 A13 3. B16 B15 4. B2 B12 5. B3 A9 6. D3 D13 7. A1 A2 A5 8. A8 C14 E16 9. B5 B6 B7 B8 10. A4 A11 A12 A14 11. D2 D4 D5 C10 12. B13 B11 B10 B9 D16 13. E1 D7 D8 E11 E12 E13 C2 14. C3 D12 D10 D9 E3 E2 15. (C2-) A3 B4 A10 C4 C8 D11 E8 E7 E6 E14 E15 16. (C2+) A16 A15 B1 D15 (Q4C) (D11-) 17. E5 E4 E10 E9 D6 D1 C15 (Q4E) (D11+) 18. D14 (Q4B) stranded 20 AWG wire (Q4C) (C2+) red (Q4E) output terminal pos red (C2-) output terminal gnd grn wirelist -30 volt 24 AWG solid wire 1. F10 F11 2. F3 F4 3. G1 G2 4. G5 G15 5. I4 I14 6. G14 F8 7. F16 F15 F12 8. F13 F5 F6 G3 9. G9 G10 G11 G12 10. G4 G6 G7 G8 I1 11. F9 H14 J9 12. I16 I12 H8 13. H3 I5 I7 I8 J6 J7 14. H2 I10 I9 J14 J13 J12 J8 15. (C1+) F14 G13 F7 H15 H10 J11 J10 J3 J15 J16 I6 16. (C1-) F1 F2 G16 I2 (Q7C) (D10+) 17. J1 J2 J4 J5 I11 I13 H4 I15 (Q7E) (D10-) 18. I3 (Q7B) stranded 20 AWG wire (C1-) (Q7C) blk (Q7E) output terminal neg blk (C1+) output terminal gnd grn copy the above text into notepad for proper spacing format

The first has the first 12 wires and the second has all 18 wires. Attached is the layout and wire lists. That is 2" duct tape holding the sockets together for soldering. The wire is from solid 24 awg cat 5 wire. I could not find any opa134pa op amps so I used tl081bcp, also tried lm318p which also works. The 47 uF caps has the 9.1 zener voltage and 10 volt ref voltage so I used 16 volt caps Used zener diode 9.1v 1/2w 78-BZX55B9V1 to fit into the sockets. grlv dip 16 layout.zip

It is done.

Let us know what it tastes like.

I'm starting to get the feeds and speeds dialled in now I have a 1.5Kw water-cooled spindle and some good spoil board bed rigidity, properly levelled and trammed the machine. I'm slowly gaining confidence and beginning to believe the reviews that said the Vasto can cut aluminium... I managed to cut ventilation slots in aluminium using a 2mm diameter single flute DLC end mill with 300mm/min feed rate, depth of cut 1.6mm, 50% overlap, 18000rpm. The test slots were 160mm long, 3mm deep, I tried 2mm, 3mm and 4mm widths.... surface finish is like a mirror, no burs and no chips welding themselves to anything. No cutting fluid was used and there was no finishing pass: Thats so better than my first attempts with the 400W motor and a corn cob end mill which produced garbage surface finish at much lower surface speeds, much lower depth of cut and destroyed the end mill very quickly:

WUHOO! Now 3/4’s of the way home, this place rocks.

Damn, 2x8 cedar rough sawn, $75 a stick. Did Putin cause this? I am going to have $4k Adirondack chairs.

Goodness me, a nice little surprise: Clare Grogan (Altered Images) came out with a new album! Saw in her interview, "....37 years since the last one...I know I'm rushing things a bit..." Typical pop, more like their later years before they originally broke up.... Her voice still has that cuteness to it, and it's fun & different to hear because she has quite the thick Scottish accent when she normally speaks....

Congrats and good luck Dusty

Wishing for the best, Dusty.

Woot! Best 'o' luck attaining your dreams!

Got a picture of Peter with a few of his Class of 2026 friends. He’s in the middle bottom of the C.

Last night: Macklemore and Imagine Dragons with the kids at Fenway. Great show, good to see live music again.

Won a hat and the new SawStop Dado set at the Rockler VIP event.

Dropped Peter off at CSU on Monday.

i have the foxalien 20W which is a single diode with 5W actual optical output. https://www.foxalien.com/en-gb/collections/cnc-accessories/products/foxalien-20w-fixed-focus-blue-laser-module-kit fox alien also sell a 40W which is dual diode and about 10W optical output. You need a cnc controller which has a laser output. The fox alien is 3 pin - 0V dc power ( I think 12 or 24V) and a pwm for laser power control. Im using lightburn software which works well and has some laser test and calibration templates built in. General consensus on the internet seems to be that if you run a diode laser at full output you wear out the diode very quickly. So im tending to go slower movement and lowish power. The cnc controller board takes the spindle speed control commands and converts them to pwm signals for the laser output power control. On the fox alien vasto this requires setting a slide switch on the back of the controller to laser mode AND sending a G code command to go into laser mode. The slide switch disables the 48VDC motor output via a relay, disables rpm control via the speed potentiometer and enables the 3 pin laser output. The g code command tells the cnc controller to convert g code rpm commands to a pwm laser power control signal. I have also changed the stock 400W 48VDC air cooled spindle for a 65mm diameter er11 1.5Kw water cooled and a vfd. I would have preferred 80mm diameter er16 as suggested in this thread but I don't have an 80mm mounting bracket and the Z axis of my cnc does not look like it will take a bracket for 80mm spindles. Initial results are promising compared to the 400W. I still need to tweak the vfd settings for accel, breaking and torque. The stock spindle is cheap and nasty. I took it apart and it has two small bearings and the case is thin and the entire thing is held together with two long bolts. Its not very rigid at all and certainly seems to be one of the weaknesses of the machine along with the spoil board.. The 1.5Kw feels far more rigid and is 3 phase 220VAC.

I turned 20,000 days old today... (yes, really) ...and counting

Had the best dinner. I had Steak Frite, but we kind of shared everything. Finished the evening with cones from Fairfax Scoop. Sorry no pics. The ladies didn't want me showing pics of their tripple scoop towers. Let's just pretend she does it for proper speaker separation.

Celebrating the Birthday of Corrinne Bedecarre.

Grumpy British Guy wood shop tour. I love how much he hates everything.

I hope you are using the shop for these builds. Cool stuff.

Working on party favors for a little headphone/craft beer nerd get together this weekend. Took forever to cut the 3D rendering of the logo but all done and used the new keyhole bit to cut keyholes for mounting on the back. Putting sealer on tonight so I can finish with boat varnish tomorrow. Then just add the bottle openers and done.

Going to try to carve in some HDU this weekend for our beach sign.

RIP to an old friend of mine. We'd known each other since somewhere between 4 and 6 years old. Not really close anymore, but he was a fire dective (or something) when Kristen's mom burned down their house. We had Kristen's step-dad's ashes (Emma, the kids' aunt's father) inside and I was able to catch up with him and get him to go in and retrieve them. They were in a bag inside a cardboard box. He was able to save those before the fire reignited and would have taken the ashes (and some other things we got out with Matt's help.) His mom was my 2nd grade teacher back when my dad was principal. I heard a lot of chatter about the two who passed away, but woke up this morning to a message from my mom who let me know it was Matt. He's at least the 2nd or 3rd from that friend group who's died in the past few years (the other being my best friend growing up.) He left behind a wife and I believe two young kids. As someone who lost his dad when he was 10 (and my dad was just a couple years older than Matt and I were/are now), this one was sad. https://newschannel9.com/news/local/communities-mourn-loss-of-thp-trooper-marion-county-commissioner-in-helicopter-crash RIP Matt Blansett.

This one hurts a good amount. RIP Chris Sommovigo, only 55. Say what you want about cables, but he did some amazing work over the years, some at dirt-cheap prices; some of my favorite cables have been his inexpensive trials, prototypes for some of his later designs. I have been a fan & customer for more than 2 decades, we conversed a bit about his move to Japan and then back again to the US to help his ailing mother, amongst several other things. A supremely decent human being for sure.... Very sad to hear....RIP

One of the places I used to buy timber, run by a really nice guy, has burned to the ground. Apart from the workshop, which contained industrial grade Felder machines https://www.felder-group.com/en-gb/products/planer-thicknessers-planers-thicknessers-c1948 , his fine timber store went too; he used to supply musical instrument makers. The extract system burst into flames while he was working in there. He beat a hasty retreat and watched as it burnt to the ground. You can just about make out the carcase of the Felders and radial arm saw. Fortunately he was insured, and Just Giving raised £14k. https://mactimbers.com/

There was a 4D version, but Brent ate a biscuit...