hi
i will get my empty ink cartridges on monday.
they were quite expensive, 5eur per cartridge.
but this is much cheaper then buying new.
no i'm wondering what may be best do clean it.
nobody can answer my question about ammonia?
someone stated ammonia is good for cleaning the floor polish, please tell me how much ammonia there is
in a cleaning fluid. i have no idea. am i right assuming ammonia to be the stuff which smells so much?
i have ammonia here which is 7,5% in water and if you take a sniff it, well, really you shouldn't take a
deep breath if you don't want to spill the bottle when dropping it. i was told it is also "smelling
salt" which was used to wake up people who lost their consciousness in the past.
is this correct? which percentage ammonia is there in a suitable cleaning solution?
for cleaning the cartridge from original ink residue, is it suitable to use alcohol?
there is actually also sold "parkett polish entferner (remover)" which may be a suitable cleaner.
i have not bought it because it was only sold in one liter bottle and costs 10eur and i was not even
sure if the polish i coud get would be a good resist.
what is best to color the polish for making it better visible?
i tried the original ink in the cartridge but one would need quite a huge amount to get it coloring a
drawn trace enough and i didn't want to dilute excessively.
then i thought of the most intense color i had in house. this is "kali".
it is a cristalline stuff (purple), it was used in the past also for medical treatment.
the dictionary sayd pottash is the english word for it but i don't think this is correct.
it is a very powerful color, i put in some crystals and they colored it quite well. i think one has to
make sure all of it dissolves to prevent it clogging the heads.
now i had the idea to use the concentrated color used to color wall paint (if you buy white one).
i will try this now.
if anyone has a better idea please tell me.
regards
stefan
14.05.2003 21:14:08, Stefan Trethan <
stefan_trethan@...> wrote:
>
>yes, try as ink
>
>i hope it works also if thicker
>
>i have no need for the inkjet since several years.
>
>
>please look here: http://groups.yahoo.com/group/Homebrew_PCBs/message/994
>and http://groups.yahoo.com/group/Homebrew_PCBs/message/965 and followups.
>
>
>please have a look at the posts to get up to date.
>
>then i look forward to discuss this further..
>
>i also managed to get 3 empty ink cartridges (with print head) from a guy at a local
>computer forum. he sends it away tomorrow.
>
>
>the most difficult thing i face is adjusting the head hight over pcb with modified printer.
>i now think i have to make this a fixed height.
>
>i have a deskjet550c.
>
>this is a printer which wraps the paper around in normal mode.
>but it isn't too difficult to modify.
>
>i simply make it like the 7574a plotter.
>i move the pcb in the y axis. so ot is much easier.
>
>i simply put a large piece of clad over the rollers which normaly wrap the paper.
>of course i had to teke of the metal sheet paper guide.
>also to cut a piece of the frame.
>
>
>now i only have to put a horizontal guide for the plate to keep it straight and to raise the print head
>up (because pcb is thicker). or i lower the roller. (which is easier).
>
>the pcb plate is pressed down onto the rubber wheels of the paper transport roller by 2 small wheels on
>the side (like in the plotter).
>
>a adjustable head height would be fine (pivoting down the transport roller around the center of the
>driving gear would be easy) but then the horizontal guide also has to be lowered.
>
>
>
>regards
>stefan
>
>
>
>
>
>
>14.05.2003 19:09:59, Ned Konz <ned@...> wrote:
>
>>On Wednesday 14 May 2003 05:03 am, Stefan Trethan wrote:
>>> today i saw floor polish at a local shop.
>>> i remembered the post of using it as etch resist. (in inkjet).
>>> so i thought i may try the printing with it (facing problems with
>>> hpgl file generation to plot etc, etc.)
>>
>>I may have missed this.
>>
>>Do you mean to actually try to use floor polish as an "ink"?
>>
>>How will your inkjet deal with the different (higher) viscosity of the
>>polish and its tendency to clog?
>>
>>I hope you never try to use the inkjet for anything else again...
>>--
>>Ned Konz
>>http://bike-nomad.com
>>GPG key ID: BEEA7EFE
>>
>>
>>
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>>
>>
>
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