[papercreters] Re: Brick Press

Is there a need for a consistent block? I'm thinking apply the plunger to the end of the block, so wall thickness and block height are consistent, but block length varies a little. Much quicker, no need to worry about measurement.

It should also be possible to press several blocks in series, so one pressing yields a row of blocks. The construction can be quite simple, if you have basic fab skills. Make a hollow rectangular tube slit down 2 opposite corners, add quick clamps. Fill with alternating buckets of pulp & wood blocks. Press. Pressing mechanisms can be very basic.

AIUI the big plus of blocks is that they suit transporting the product somewhere, hence their widespread use. But pouring a wall in situ's less work, or spraying one. OTOH compressed paper is a good bit stronger, its instantly stable, and dries far faster.

PS my first blocks were pressed right away, no predraining.



--- In papercreters@yahoogroups.com, "smt460" <smt460@...> wrote:
>
> Hi every one I haven't posted in a long time on here but saw the posts on block presses.
> We did this 3 yrs ago and the conclusion was it would cost to much per block in time as we found slip forming would be much quicker.
> 1 takes 2 hrs for pulp to drain before it can be pressed.
> 2 once drained getting the correct amount drained pc into the compartment for a consistent block.
> 3 block needs to be compressed at 1500 lbs so the chamber has to be built very strong and still have holes for drainage.
> 4 You must be a person with huge mechanical skills to build one of these as the hydraulics and fabricating must be correct for your safety.
> There are some pics on the fourm of our press it did work well and we could put out 3 blocks a min but labor and time made it not worth it.
> hope this helps answers some questions.
> Clair.




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