Tuesday, July 10, 2018

Little Vehicle Train


In addition to the cars I also made a train for this series.  Same design principles as the rest of the series.  It was basic enough to make several and just enough to challenge to learn and try new things.
The main learning came from the large dowels.  I needed to put a flat surface on them.  The last time I did this I attached it to a board and ran it through a band saw.  This worked ok. It did not remain as flat after I sanded away the tooling marks.  This time I had a plane, but I did not have a sturdy workbench or reference plane.  That is where the table saw came in.  it is a flat surface with a ripping fence.  It worked great.
The holes on the chassis for the cars also proved to be a challenge.  One is ¼” and the other is 9/32” both should be drilled at the same time.  I really did not want to guess which side to put the groove.  I ended up only drilling part way through.  This way the side that was not drilled, was the side I grooved.
I really liked how the train turned out.  It is 22 inches long and about 4 ½” tall.

Shrink Wrap



Just a quick definition, shrink wrap shrinks when in contact with hot air to keep things together.  Stretch wrap stretches and acts like a rubber band to keep things together.  The only reason why I put this in here is because I just learned it a few years back.  I thought the terms could be used interchangeably.  Last year I made several puzzles and used stretch wrap to hold them together (the stuff put on containers of food to put in the refrigerator).  It did not work very well.  This year I ordered some shrink wrap envelopes to play with on the puzzles.  It is amazing how much easier they are to work with.  I do struggle with a one thing, sealing them. I don’t have the correct tools to do it and I don’t feel like dropping a couple hundred dollars on one.  I have about a 75% success rate with a good seal.  When heat is applied the wrinkles form and then go away.  Now I know how to package my puzzles.


Wednesday, July 4, 2018

Little Vehicle Series

So I redid the idea of the build and grow and added a couple of more cars.  I tried to make them where kids can pound in the nails.  Honestly, that took way too much time.  Each unit had to be drilled together and packaged together.  I really did not trust myself to mix parts.  The precision was too much for the equipment I was using.  I turned and made a bunch how I would make them without nailing them together.  Here are some of the things that I wanted to do with this project.

First is the design.  This was all done without the need of a scroll saw.  This is unique for my toys.  The tools I used were a table saw, miter saw, band saw, drill press and belt sander.  I tried to limit the number or rip widths I used so that I could just rip a bunch of material.  This came in handy since I was making ten of each car. Everything but the cab is made from or can be cut from ¾ inch material and ¼ inch plywood.

The ease to make a lot at once.  I wanted to be able to make these in batches.  This was a reason for limiting the number of rip widths.  I also tried to standardize on the profiles so multiple parts can be made with the same groove or angle.  I tried to keep the drilling standard as much as I could but was not as successful.  This kept setups to a minimum and made it easy to batch out a lot of parts at a time.  I will admit drilling 140 holes in cabs did get a little boring (pun intended). 
Durability and Safety.  This is always important to me and the toys I make.  I want them to be played with and not be destroyed in a couple days.  My design limitations were the wheels needed to be at least 1 ¼ inches in diameter (choking hazard).  The toy needed to be big enough that little hands could still grab it and handle it.  It needed to be able to endure rough play.  There are a lot of glue surfaces for each part.  I am not a huge fan of plywood but it was the best material to use for the thin parts.  Plywood is a little more resistant to breaking when in thinner stock than wood.

Price.  I don’t usually talk about price because that has never been a focus.  This time is was.  I wanted the price to be $15 and still make some sort of profit.  I am not going to disclose how much each of the toys cost to make.  Just know that if I put in my labor I would be significantly higher than the $15 limit.  I did figure out the cost of each vehicle to the penny.  They also fall below the $15 mark.  The reason for the price cap is craft fairs.  The lower priced items sell faster than the higher priced ones.  Last year I had a lot of high priced items; this year I am changing it up.

Drawings. I draw everything out in a 3d CAD system.  These were done in Solid Works.  This was more of a learning experience for me.  I was able to design my own drawing template and learn more about Solid Works.  I am not sure how I am going to sell the drawings yet.  I am hoping to submit a couple to some magazines to see what happens.  I have the option to sell them as a complete set or individually.  I may try to mix up an offer on them.  Not sure how Etsy will handle an offer.  More learning on my end.

Bill of materials. With doing multiple sets I wanted to know how much I needed of everything.  This is where everything came together or fell apart and it did both.  I created an excel workbook with all the information in it about each of the projects.  Added a multiplier to figure out how much of everything I needed.  It calculated everything from linear feet of each rip width to purchased components.  It even spit out my cost.  I even figured out how to convert to fractions of a foot.  I know inches would have been better but I stopped at fractions.  It is setup so that a person can put in the number of each toy they would like to make and it will tell you the linear foot of each rip width, quantity of all the purchased parts, the length of dowel required.  It will also factor in the kerf cut and yield.  If you purchase any of these plans, email me and I will send you the excel sheet.  I will delete the plans that have not been purchased.  Sorry, if you have the dimensions of the parts you have the plan for these toys.
The build was pretty straight forward.  Did not have very many problems with the exception to my excel sheet.  I had a calculation error for the length of dowel needed.  I have fixed that and it works fine.  I have added a police cruise to the lineup.  This actually has the parts that I am looking for to make a semi-truck line.  This is probably going to happen next year though.