Post your Solid State pics here.

[fotios]

Originally Posted by Spirtos

My first thought when I saw the rear panel was that labeling is made with autotransfer letters, letraset or something, as many others DIYers I used them since 1989, but not in last years. After a more carefully look I decided that it is not possible, mostly because of their perfect alignment and look

Congratulations again Fotios
btw, did you purchuased the milling machine's parts locally or by online shopping? I was searching, long time ago for a similar system but I abandoned this plan when I saw that I could only find completed systems spending at least 600€ without cutting tools of course.

Hi Spirtos
I purchased everything on-line.
Wabeco from a German on line store. Try a search on e-bay, there are more stores.
Muhller motor from e-bay.de. Alternativelly KRESS are better from mine motor and more expensive by 30-40 euro.
The milling cutters from e-bay.uk. Look at "Gloster Tooling" to see prices.
I will try the next days to find the exactly addresses of shops on e-bay to inform you.

Thanks again
Fotios

[Spirtos]

[fotios]

To complette the presentation of my tools:

1) Hand bending tool made in Fotios. Its maximum bending force is up to 3mm thick aluminum plate.



2) Drill Press 550W made in Taiwan (not China!) which i purchased before 12 years for 250 euro. Very good tool.



3) Mittre saw Femi = 330 euro. Bought from tool store, not from LIDL or Alex Pak!



4) Extension table made in Fotios for cutting large alu plates. It is mounted on the table of mittre saw.



My rest tools are the common of any workshop.

Fotios

[destroyer X]

top performance, amplifier's factory.

Brand can be "Foton"....or Photon

Why not?

regards,

Carlos

[syn08]

Originally Posted by fotios

Carolos, to be sincere the development of this project it tooks about 7 months included that i have redesign for 2nd time all pcbs.

For mortals with full time jobs, that would map to three to four years

Nice metal shop you built over there

[fotios]

Originally Posted by destroyer X

top performance, amplifier's factory.

Brand can be "Foton"....or Photon

Why not?

regards,

Carlos

Hi Karolos

He,he,he...you are very optimist. I haven't the posibillity to do a production line. I am alone in this work and my economics are very restricted. I can't trust any other person for colaboration (i am 50 years old and i have enough ecperience about people) because i believe that the work will be degraded.
This amplifier has a cost (excluding work) of arround 600 euros. The enclosure's cost it is arround 140 euro included the Fischer heatsinks. To obtain an absolute finish, i must send the front and rear panel as well the top and bottom cover (4 pieces total) in Athens for anodising. This will add a cost of 40 euro more (20 euro shippings + 20 euro anodising) thus the cost will be 180 euro. The front panel decorative black band it is inexpensive, it can be a transparent self adhesive printed at home with the laser printer or ordered from a graphics art lab. The problem is in the markings on rear panel. But there are solutions and for this.
Modu Italy offers a line of very nice ready enclosures. A Modu enclosure similar to mine - complette with handles and feets - it costs arround 180 euro + VAT + shipping = 260 euro. I can add this extra cost in my amplifier (i make amplifiers for living as you know, not for hobby) and instead 1500 euro, say, i can sell it for 1600 euro. The problem with Modu it is that although it offers enclosures with very impresive front panels (10mm thick! alu) and very nice handles, the rest pieces of enclosure are: top and bottom covers from metal plate and the back plate from alu 1,5mm thick. In mine amplifier the covers are from 3mm thick alu plates which are screwed very tightly and directly on heatsinks (see in pictures) and offers significant assistance in heatsinks in heat disipation. Practically speaking, if one channel removed from the enclosure due to 50mA iddle current per output device its heatsink after 1,5 hour in iddle operation it touches a temp of 49 deg.C. If the channel is mounted on the enclosure, the heatsink temp in iddle state drops and remains stable at 35 deg.C continuously, and the whole enclosure it is warmed. I don't believe that a MODU enclosure can obtain this.

I will back (Terminator )
Fotios (Lucio)

[fotios]

Originally Posted by syn08

For mortals with full time jobs, that would map to three to four years

Nice metal shop you built over there

Thanks syn for your kind words.
In reality, the only tools that i made by myself are the hand bending tool and the extension table for the mittre saw.
There are ready hand bending tools offered on e-bay for 70-90 euro. Unfortunatelly their endurance in bending force it is limitted for metal sheets of 1mm and for alu sheets of 1,5mm. Above these thicknes, the tool might be broken. For this reason i decided to built a more strong tool; this in the picture.
I have not space in my home (i am working in home to reduce my expensess) to install a CNC router. I have study enough the CNC routers. There is a nice and inexpensive router of CNC-STEP (made in Germany) the Hi-Z S-720 (active working area: 720mm X 420mm X 110mm, more than enough for an amplifier) for 2800 euro. In this we can mount a very good KRESS 1050 FME milling motor for 140 euro. We must add and some spares like a vacuum tube to suck out the chips and an automatic lubricant system for the cutter. The CNC software is included in the price of router and the PC would be a notebook. Total cost arround 3200 euro. The 1/3 of the price of an audio analyser . With a such tool, except milling, cutting etc you can mount in the motor an engraving tool to make any draw on the alu surface. These CNC routers because have the posibility of mooving in 3 axes, with the adding of a special turning chuck can be transformed in lathe machines as well. A such chuck shipped with a stepper motor it costs from 600 to 900 euro. There are as well special vacuum tables (arround 500 euro) for the easy tightening of the workpiece for milling work.
With 4500 euro, you can have a tool for cutting perfect square plates, for cutting holes or slots for ventilation, for opening holes of any shape to mount sockets, buttons etc, to make perfect massive alu feets and knobs, to engraving yet the smallest signs on the plates etc..etc.
You can make an enclosure exactly as you like.
For small productions (2-3 devices per month, just fine for Hi-End works) it is the best solution IMHO. The anodising it is not expensive (20 euros for a whole case in black) in external workshops.

Fotios

[nicoch58]

HI Fotios you know where I can find the same quality TiAIN slot drill with 2 flutes for hole 3.5mm ?

GlosterTooling have only 3-4mm , max deep hole ?

Thanks a lot for your tricks

[fotios]

Originally Posted by nicoch46

HI Fotios you know where I can find the same quality TiAIN slot drill with 2 flutes for hole 3.5mm ?

GlosterTooling have only 3-4mm , max deep hole ?

Thanks a lot for your tricks

Hi nico
I don't know what you have in mind for milling or drilling. I know that Gloster Tooling has TiAIN slot drills only in standard sizes 3-4-5-6 etc mm.
The only set which contains cutters in divisions of unit, it is this in picture:

I have bought one such set, and i can confirm you that it works almost the same in aluminum like TiAIN. Because the cutters are of 3 flutes gives a nice finish in the cutting edges. I use the TiAIN slot drills only for drilling. For the rest milling works, i use the cutters in picture.
This is from wikipedia:
"Coatings: The right tool coatings can have a great influence on the cutting process by increasing cutting speed and tool life, and improving the surface finish. Polycrystalline Diamond (PCD) is an exceptionally hard coating used on cutters which must withstand high abrasive wear. A PCD coated tool may last up to 100 times longer than an uncoated tool. However the coating cannot be used at temperatures above 600 degrees C, or on ferrous metals. Tools for machining aluminium are sometimes given a coating of TiAlN. Aluminium is a relatively sticky metal, and can weld itself to the teeth of tools, causing them to appear blunt. However it tends not to stick to TiAlN, allowing the tool to be used for much longer in aluminium."
Don't forget to use diesel fuel to make easiest the cutting and to keep clean the cutting tool!

Fotios

[nicoch58]

Thanks , I drill only , fine I will use this ,

some time 3.5mm hole is perfect size,we can put 3mm screw, or tapping for 4mm screw or live as is

As I jump from SS to tube ,what suggest for big hole ? Punch?