Yahoo Groups archive

Homebrew PCBs

Index last updated: 2026-04-28 23:05 UTC

Thread

Peach Vario

Peach Vario

2010-01-31 by Marko Pavlin

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\ufffdC, 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
povr\ufffdino zagozde za\ufffdela zdrsavati na povi\ufffdani temperaturi. Zaradi tega
sem na stru\ufffdnici izdelal aluminijasta adapterja.

\ufffde koga zanima, lahko pripravim risbe. V glavnem ideja je bila, da je na
valj\ufffdkih \ufffdvrsto pritrjeno s pre\ufffdno pu\ufffdo (\ufffde se tako re\ufffde ???), zobnika
pa naj bi bila stisnjena z vijakom. Na strani motorja sem namesto
zagozde uporabil kar vijak. Zobnik pri motorju je stisnjen s pomo\ufffdjo
malo predelanega vijaka (vsi so na imbus), tako da zasede \ufffdim manj vi\ufffdine:


Ker sem \ufffdele pri prvem poskusnem sestavljanju ugotovil, da sta alu
profila razli\ufffdna (eden ima \ufffde 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 distan\ufffdnike za motor sem uporabil kar karbonsko cevko, ker drugega
nisem imel pri roki (2 \ufffdrni pal\ufffdki na sredi slike):


Stvar je kon\ufffdno pripravljena za ponovno sestavljanje.


Tole je pa sistem "vario":


Manjkajo \ufffde vijaki za nastavljanje raazmaka. Trenutna re\ufffda je 0,5mm
\ufffdir\ufffda od originalne. Gre pa za 0,75mm skupaj in narazen.

RE: [Homebrew_PCBs] Peach Vario

2010-01-31 by Jim Barnes

Lovely machining, but what is it?
Show quoted textHide quoted text
-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com
[mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Marko Pavlin
Sent: Saturday, January 30, 2010 4:00 PM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Peach Vario

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

Re: [Homebrew_PCBs] Peach Vario

2010-01-31 by Volkan Sahin

Nice work Marco. Thanks for sharing. I'm also planning to modify a laminator to accept different material sizes. I'll use it for dry film lamination.It is a good starting point for me. Thanks,Volkan

--- On Sat, 1/30/10, Marko Pavlin <mp@...> wrote:
Show quoted textHide quoted text
From: Marko Pavlin <mp@...>
Subject: [Homebrew_PCBs] Peach Vario
To: Homebrew_PCBs@yahoogroups.com
Date: Saturday, January 30, 2010, 4:00 PM

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.


------------------------------------

Be sure to visit the group home and check for new Links, Files, and Photos:
http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links






      

[Non-text portions of this message have been removed]

Re: [Homebrew_PCBs] Peach Vario

2010-01-31 by Stefan Trethan

Nice machining indeed.

I just want to say that fuser units from old copy machines have a
spring loaded roller with quite some travel. So you can save yourself
a lot of work by starting with one of those. All I had to do was mount
it to a wooden base, add a geared motor, and a temperature controller
(the thermistor is already included with the fuser).


ST
Show quoted textHide quoted text
On Sun, Jan 31, 2010 at 4:10 AM, Volkan Sahin <v_sahin@...> wrote:
> Nice work Marco. Thanks for sharing. I'm also planning to modify a laminator to accept different material sizes. I'll use it for dry film lamination.It is a good starting point for me. Thanks,Volkan
>

Re: [Homebrew_PCBs] Peach Vario

2010-01-31 by Simao Cardoso

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

Very ingenious and simple your spring load system! Thanks for sharing.

You said it's only for toner transfer use, but since you are doing it,
almost from scratch, with a few extra tricks you can make it as good for
dry film as the real expensive ones. The hot rubber rolls seem to
already have a diameter large enough. But for dry film the rolls should
run free. Without motor attached. The motor is attached to a second pair
of normal rubber rolls. 

The dry film is viscous not solid, if traction is applied with the
pressure and temperature, the dry film can wrinkle. Mega and other
vendors sell GBC laminators modified only to hold the big dry film
rolls. And those laminators are known for wrinkle the dry film in a
stressful way. Bungard sells a super expensive laminator from a glass
etching vendor which has the hot rubber rolls running free.

The hot rolls shouldn't drive the movement, they should be driven by the
dry film movement. The hot rubber rolls should only apply pressure and
temperature.  The second pair of normal rubber rolls drives them all,
moving pcb with dry film already applied. The 3rd thing is the dry film
roll stands, which as a 'brake' thing, needing some force necessary to
pull dry film, making dry film always stretched in the hot rubber rolls.
The brake system is made by a multiplying transmission between dry film
roll and the roll that remove the undercover sheet. Since can't exist
different speeds for each roll, it can't run, but the transmission has a
clutch which let it run after a minimum force used (Except the simple
implementation works so bad, but they seem to changed the design in
newer models).

Since no homebrew need big dry film rolls. It can be made by Adam
Seychell good way. Having two plastic plates (upper and lower) at 45�
with pcb movement, in which a piece of dry film is hold by water surface
tension, nicely stretched. If a loose end of dry film is left in the hot
roll front, when the user push a pcb through it should grab the dry film
too, hopefully aligned.

Hope to have helped anyone interested.

Re: [Homebrew_PCBs] Peach Vario

2010-02-01 by Marko Pavlin

Thanks. That's really helpful. I have dry film, but I've never got good
results.

Regards,
Marko


Simao Cardoso pravi:
Show quoted textHide quoted text
>  
>
> Marko Pavlin wrote:
> > I retrofited famous "Peach" to Peach Vario with variable distance
> > between rollers. I made new side walls and improved gears with
> > additional holders.
>
> Very ingenious and simple your spring load system! Thanks for sharing.
>
> You said it's only for toner transfer use, but since you are doing it,
> almost from scratch, with a few extra tricks you can make it as good for
> dry film as the real expensive ones. The hot rubber rolls seem to
> already have a diameter large enough. But for dry film the rolls should
> run free. Without motor attached. The motor is attached to a second pair
> of normal rubber rolls.
>
> The dry film is viscous not solid, if traction is applied with the
> pressure and temperature, the dry film can wrinkle. Mega and other
> vendors sell GBC laminators modified only to hold the big dry film
> rolls. And those laminators are known for wrinkle the dry film in a
> stressful way. Bungard sells a super expensive laminator from a glass
> etching vendor which has the hot rubber rolls running free.
>
> The hot rolls shouldn't drive the movement, they should be driven by the
> dry film movement. The hot rubber rolls should only apply pressure and
> temperature. The second pair of normal rubber rolls drives them all,
> moving pcb with dry film already applied. The 3rd thing is the dry film
> roll stands, which as a 'brake' thing, needing some force necessary to
> pull dry film, making dry film always stretched in the hot rubber rolls.
> The brake system is made by a multiplying transmission between dry film
> roll and the roll that remove the undercover sheet. Since can't exist
> different speeds for each roll, it can't run, but the transmission has a
> clutch which let it run after a minimum force used (Except the simple
> implementation works so bad, but they seem to changed the design in
> newer models).
>
> Since no homebrew need big dry film rolls. It can be made by Adam
> Seychell good way. Having two plastic plates (upper and lower) at 45�
> with pcb movement, in which a piece of dry film is hold by water surface
> tension, nicely stretched. If a loose end of dry film is left in the hot
> roll front, when the user push a pcb through it should grab the dry film
> too, hopefully aligned.
>
> Hope to have helped anyone interested.
>

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.