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Uses of sawdust shavings and yard debre

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Forum topic by rizay posted 12-30-2009 01:44 PM 2751 views 3 times favorited 9 replies Add to Favorites Watch
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rizay

73 posts in 1752 days


12-30-2009 01:44 PM

Topic tags/keywords: resource jig tip

There has been a lot of discussion on what to do with sawdust and shavings produced while woodworking. Many people use there’s for mulch, gardening, and animal bedding. Others have used them for heating. While a pile of sawdust doesn’t burn very well, there are ways to get it to burn better. I saw a post on this forum where the author discussed making fire starters. Elsewhere on the web, I have seen people all over the world using some type of press to compact a mixture, including sawdust, into blocks or disc shape briquettes. That is what brings me to this post.

I have always had to haul my shavings and yard debris to the local burrow waste area. Recently, I acquired a wood stove and searched for means of burning my wood waste. Since I have difficulty burning usable wood, this seemed logical. There are videos on youtube showing demonstrations of these presses. One site I found was from the Beaverton Rotary. They developed one press they call the Petterson press. Here is a link. They build these presses for third world impoverished countries. These briquettes use all kinds of waste including paper, sawdust, grass clippings, pete, ect…

I realy like the idea so I drew up some quick plans to build one. One uses a hand lever, the other, I am thinking about using with a scissor jack. Here are some pictures of my ideas. Please let me know what you think.
lever action 1
This part attaches to the bottom of the container. It has pvc pipes that allow the water to drain off the briquettes while they are pressed.
Bottle of container

Here is the one using a jack. Sorry, jack isn’t show. It will go upside done on the top of the press.
Debre container

Lever action 2

full view
Bottom view

-- Come visit me at WoodChux and see my work, get free woodworking plans, and find the lowest priced bottle stopper kits around.


9 replies so far

View Mario's profile

Mario

902 posts in 2717 days


#1 posted 12-30-2009 03:53 PM

Awesome, thank you so much for the link. I live in the great white north and have been contemplating that same thing.

Thanks.

-- Hope Never fails

View Julian's profile

Julian

880 posts in 2191 days


#2 posted 12-30-2009 05:10 PM

Looks like a great use for all the sawdust I accumulate. I wonder if straight sawdust would work or if it needs paper mixed in?

-- Julian, Park Forest, IL

View RetiredCoastie's profile

RetiredCoastie

999 posts in 1848 days


#3 posted 12-30-2009 05:18 PM

Very nice. Do you have any info on approximately how many BTUs a briquette will generate and how long do they burn before you need to add another briquette, based on the PVC Peterson press? I like the concept and would like to learn more on how efficient it would be in a 20’ by 20’ shop. I like the press that uses the PVC pipe, easier to build, smaller foot print for storage and would seem to be better at water extraction. Great post!

-- www.thepatriotwoodworker.com Proud Supporter of Homes For Our Troops

View rizay's profile

rizay

73 posts in 1752 days


#4 posted 12-30-2009 07:41 PM

I don’t know about the btu’s. I have read that they will burn for about an hour. That would depend on how big they are I would assume.

I am sure straight sawdust will work. I will try it and let you know for sure.

-- Come visit me at WoodChux and see my work, get free woodworking plans, and find the lowest priced bottle stopper kits around.

View airman's profile

airman

48 posts in 1882 days


#5 posted 12-30-2009 07:55 PM

very interesting. If possible could I get a copy of your finished plans? This would be a great way to use up my sawdust.

View PurpLev's profile

PurpLev

8476 posts in 2314 days


#6 posted 12-30-2009 07:59 PM

thanks for the idea, and link. always looking for green concepts.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View rizay's profile

rizay

73 posts in 1752 days


#7 posted 12-30-2009 10:21 PM

No problem. As soon as I finish a few things I’ll give everyone a copy of the plans. Keep watching this thread, I’ll post them.

-- Come visit me at WoodChux and see my work, get free woodworking plans, and find the lowest priced bottle stopper kits around.

View rizay's profile

rizay

73 posts in 1752 days


#8 posted 12-30-2009 10:57 PM

I thought about using the pvc for the press but I am concerned about storing them during the summer. I think the blocks might be better.

-- Come visit me at WoodChux and see my work, get free woodworking plans, and find the lowest priced bottle stopper kits around.

View JRod's profile

JRod

14 posts in 1754 days


#9 posted 12-31-2009 12:07 AM

That is a great idea as I wondered what else would be in the mixture.

I take the sawdust/shavings and compact them into a coffee can add a small amount of kerosene,this makes a fire starter for the kindling.

Thanks again

-- JRod

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