LumberJocks

Hand-cranked wood model of 2 crankshafts and 1 piston

  • Advertise with us
Project by DaleMaley posted 10-10-2020 12:40 AM 1301 views 1 time favorited 6 comments Add to Favorites Watch

I saw a computer simulation of this mechanism on Youtube and decided it would make an interesting and colorful hand-cranked wood model.

I used red oak for the base and 2 main vertical pieces. The moving pieces are made from hard maple, and then dyed with a water based dye.

The finished model runs very well, with very little friction.

The kids should enjoy this one. A couple times a year with no virus, I take most of my wood toys to public events so the kids can play with them. Usually, I find the adults have as much fun as the kids playing with them :)

To see how I designed and built this model, see my woodworking web site.

I also made a Youtube video of the model in action, you can use this link to see the video.

Thanks

-- Dale, Illinois, http://dalemaley.webs.com/





6 comments so far

View DaleMaley's profile

DaleMaley

593 posts in 3526 days


#1 posted 10-10-2020 12:43 AM

I cut all the gears on the scroll saw. They have 20 degree pressure angle, 7 diametral pitch. I used GearDXF program to generate the profile of the gear. Then

-print out paper pattern for gear
-glue pattern onto blank using white Elmer’s glue
-drill shaft hole
-scroll saw cut all gear teeth
-wash away excess paper and glue with warm water and a rag
-dry moisture from wood in oven at about 120F for at least 15 minutes.

-- Dale, Illinois, http://dalemaley.webs.com/

View htl's profile

htl

5600 posts in 2449 days


#2 posted 10-10-2020 01:01 AM

Nice job!!!
For some reason a two armed bandit comes to mind?

-- An Index Of My Model making Blogs https://www.lumberjocks.com/htl/blog/130264

View LittleBlackDuck's profile

LittleBlackDuck

8261 posts in 2111 days


#3 posted 10-10-2020 02:41 AM

Thanks for the post DM... I’ve always been fascinated by gears and only recently started playing with the concept…

Hope you don’t mind… though it’s a compliment in disguise… there might be a laser cut MDF version of this here at LJ… too late to delete your Warehouse model… it’s been unashamedly plagiarised.

-- If your first cut is too short... Take the second cut from the longer end... LBD

View Redoak49's profile

Redoak49

5422 posts in 3278 days


#4 posted 10-10-2020 11:16 AM

Interesting and well done!

View DaleMaley's profile

DaleMaley

593 posts in 3526 days


#5 posted 10-10-2020 11:32 AM



Thanks for the post DM... I ve always been fascinated by gears and only recently started playing with the concept…

Hope you don t mind… though it s a compliment in disguise… there might be a laser cut MDF version of this here at LJ… too late to delete your Warehouse model… it s been unashamedly plagiarised.

- LittleBlackDuck

My sketchup drawing has the nominal distance between gear centers. I find for wood, I must add about 3/32” onto the gear center distance for the gears to run smoothly.

-- Dale, Illinois, http://dalemaley.webs.com/

View DaleMaley's profile

DaleMaley

593 posts in 3526 days


#6 posted 10-10-2020 11:35 AM

The computer simulation of this model is what gave me the idea to make a wood model….is shown in this Youtube video.

-- Dale, Illinois, http://dalemaley.webs.com/

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com