Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I retrofited famous "Peach" to Peach Vario with variable distance
between rollers. I made new side walls and improved gears with
additional holders.

Here are some photos. Original side wall in 1:1 ratio:
http://www.feltna.com//hardware/peach/slike/stranica.jpg
http://www.feltna.com//hardware/peach/slike/stranica_zadaj.jpg

and profile:
http://www.feltna.com//hardware/peach/slike/profil.jpg

I am using solidworks for my job and here are some sketches:
sidewall: http://www.feltna.com//hardware/peach/3D/stranica.SLDPRT
rollers: http://www.feltna.com//hardware/peach/3D/valjcki.SLDPRT
profile: http://www.feltna.com//hardware/peach/3D/profil.SLDPRT
complete assembly: http://www.feltna.com//hardware/peach/3D/frankinja.SLDASM

and screenshot of the "vario" sidewall detail:
http://www.feltna.com//hardware/peach/3D/stranica.JPG
here's DXF for new sidewall:
http://www.feltna.com//hardware/peach/CNC/stranica.DXF
and photo of CNC'ed walls:
http://www.feltna.com//hardware/peach/slike/IMGP4296.JPG

gears got alluminium adapters:
http://www.feltna.com//hardware/peach/slike/IMGP4301.JPG

after first assembly I found out there are two different alu profiles:
http://www.feltna.com//hardware/peach/slike/IMGP4304.JPG
so, I had to cut some of the larger one to fit it within grooves in new
walls: http://www.feltna.com//hardware/peach/slike/IMGP4303.JPG

All new and some old parts:
http://www.feltna.com//hardware/peach/slike/IMGP4297.JPG

and finally, peach vario:
http://www.feltna.com//hardware/peach/slike/IMGP4305.JPG

This is the vario system:
http://www.feltna.com//hardware/peach/slike/IMGP4309.JPG
the rollers at the neutral position 0,5mm more apart then originally.
The vario can move 0,75mm to both directions.

I'll post some test results with higher temperature (I use 180°C, single
pass) and with TRF foil.

Regards,
Marko

Bistveni del je stranica, ki je tule v DXF formatu
<http://www.feltna.com//hardware/peach/CNC/stranica.DXF>.
Takole pa izgledata obe stranici. Pozor! Potrebno je narediti 2 zrcalni.


Nekaj je bilo potrebno ukreniti tudi z zobniki, saj je plastika z malo
površino zagozde začela zdrsavati na povišani temperaturi. Zaradi tega
sem na stružnici izdelal aluminijasta adapterja.

Če koga zanima, lahko pripravim risbe. V glavnem ideja je bila, da je na
valjčkih čvrsto pritrjeno s prečno pušo (če se tako reče ???), zobnika
pa naj bi bila stisnjena z vijakom. Na strani motorja sem namesto
zagozde uporabil kar vijak. Zobnik pri motorju je stisnjen s pomočjo
malo predelanega vijaka (vsi so na imbus), tako da zasede čim manj višine:


Ker sem šele pri prvem poskusnem sestavljanju ugotovil, da sta alu
profila različna (eden ima še utor za vijake temperaturnih stikal), sem
moral slednjega malo predelati s konca, sicer ne gre v predelano stranico:

S konca sem odrezal malo utora:


Tole so vsi glavni sestavni deli:


Za distančnike za motor sem uporabil kar karbonsko cevko, ker drugega
nisem imel pri roki (2 črni palčki na sredi slike):


Stvar je končno pripravljena za ponovno sestavljanje.


Tole je pa sistem "vario":


Manjkajo še vijaki za nastavljanje raazmaka. Trenutna reža je 0,5mm
širša od originalne. Gre pa za 0,75mm skupaj in narazen.