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Dutchy Excavator Build #1: Tracks...

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Blog entry by darkmyble posted 05-18-2018 08:22 AM 1345 reads 0 times favorited 13 comments Add to Favorites Watch
no previous part Part 1 of Dutchy Excavator Build series Part 2: Adding uniformed rounded ends to track parts... »

Hi folks.. I have been challenged to build the Dutchy Excavator.

This will really test my skills and equipment to the max. The level of detail and precision is immense.

So i thought id tackle the most tedious part first. I spent yesterday afternoon cutting and prepping some Sapele which i’ll use for the track parts. This species of mahogany is lovely and it was a great find amongst the other window frames that are thrown away after being replaced with UPVC. I have access to a local companies waste wood material and given almost all windows are made from hardwood its a great source for my projects.

The major consideration for me was how i was going to put the grooves in the tread plates. The kerf on my table saw is 2.8mm but because my table saw isn’t designed for such precision i decided to not use this method to make the grooves. Instead i opted for a 3mm milling bit in my rotary tool mounted on a stand.
A simple stop jig allows me to just simply turn the blank around after sliding it through past the bit.. dropping the rotary tool incrementally until the depth required is met.

It works a treat and so i’m in the middle of doing this part of the process to the 80+ pieces ive pre-cut.. there’s quite a few to go!!

I did however want to finish one.. so i knew in advance the effort and process required to get the end result..
My bench top sander again is a hobby version and certainly not a ‘pro’ tool.. but it did the job just fine and I used my proxxon pen sander to finish up..

I’ll keep this blog up to date as I go through the process.

Advice an constructive criticism is welcomed.

Many thanks

Mark :)

PS If you wish to try this project yourself please follow this link..
https://dutchypatterns.com/

-- If at first we don't succeed, measure and measure again



13 comments so far

View crowie's profile

crowie

2744 posts in 2154 days


#1 posted 05-18-2018 09:16 AM

You’ve made s very good start Mark.
Cheers

-- Lifes good, Enjoy each new day...... Cheers from "On Top DownUnder" Crowie

View robscastle's profile (online now)

robscastle

5489 posts in 2407 days


#2 posted 05-18-2018 09:52 AM

I dont have enough experience to provide any advice but I am going to watch and comment every now and then as I wondered what the grooves were on his original post.

I will say though looks awful fiddely … I think thats how you spell it.

A question

How have you got your Dremmel set up in the drill press?... its obviously not by a rubber band!!

Keep up the good work!!

-- Regards Rob

View toyguy's profile

toyguy

1665 posts in 4040 days


#3 posted 05-18-2018 10:30 AM

Off to a great start.

-- Brian, Ontario Canada,

View GR8HUNTER's profile

GR8HUNTER

5143 posts in 915 days


#4 posted 05-18-2018 02:45 PM

what an interesting way of doing this operation …… but just as #4 says there is 100 ways to do it ……depends on the tools you have …….what a great start Mark ….. I think thats 3 of us on this project now …. LOL … GREAT JOB :<))

-- Tony---- Reinholds,Pa.------ REMEMBER TO ALWAYS HAVE FUN

View helluvawreck's profile

helluvawreck

32087 posts in 3069 days


#5 posted 05-18-2018 02:53 PM

This will definitely be an exciting series. You are off to a good start.

-- helluvawreck aka Charles, http://woodworkingexpo.wordpress.com

View Northwest29's profile

Northwest29

1661 posts in 2693 days


#6 posted 05-18-2018 07:09 PM

Following.
Just curious, what is your ‘air’ hose hooked up to?

-- Ron, Eugene, OR, "Curiosity is a terrible thing to waste."

View darkmyble's profile

darkmyble

58 posts in 490 days


#7 posted 05-18-2018 07:34 PM



Following.
Just curious, what is your air hose hooked up to?

- Northwest29

Hi.. It’s connected to my suction system made from an old hoover. Stripped down and mounted on the wall it provides quite a powerful suction that can be easily swapped around for my different bench top tools.

-- If at first we don't succeed, measure and measure again

View darkmyble's profile

darkmyble

58 posts in 490 days


#8 posted 05-18-2018 08:27 PM



A question

How have you got your Dremmel set up in the drill press?... its obviously not by a rubber band!!

Keep up the good work!!

- robscastle

Haha the rubber band is there just to hold a little battery powered lamp I sometimes use. In this case though when using the vaccum (which had a separate power source for the drum motor in the hoover head which now powers a lamp magnifier) the light comes on so I get a good light source as well as a clear dust free work area.
The stand is a Dremmel Moto-Tool drill press stand (model 212 type 2. It doesn’t fit the newer Dremmel versions as well but with a little jiggery pokery it can be fitted and is straight and stable.

-- If at first we don't succeed, measure and measure again

View darkmyble's profile

darkmyble

58 posts in 490 days


#9 posted 05-18-2018 08:39 PM

I’ve realised that in actuality the piece I’d labelled as finished isn’t. I got a bit a head of my self. It needs some material removing from the outer edges. Easily done. I’ve used double sided tape on the underside of the platform I’m using.. I’ll move it a few mm’s and slide all 80 pieces through again.. It’s long winded I know. I need to make a plate for my tablesaw. The one I have is 2mm lower than the surface of the table which obviously is problematic. Making a new hardwood plate and making sure it’s level with the rest of the table will solve that issue. Also making a sled will also give greater control and precision. I have a slab of UHMWPE or UHMW which I’ll use for runners. This is half the fun.. I face a problem I solve it as best I can. If I win the lottery though I’d love a big shed like Norm Abram’s haha

-- If at first we don't succeed, measure and measure again

View htl's profile

htl

4238 posts in 1362 days


#10 posted 05-18-2018 09:32 PM

It’s going to be interesting to see how others get it done.
It’s going to be a beautiful model when done, the extra work of building the treads really adds to the look of this project.
Glad to see you’re up to the challenge darkmyble, right along with Gr8Hunter.
Have fun and get er done!!!

-- An Index Of My Model making Blogs http://lumberjocks.com/htl/blog/116729

View hookfoot's profile

hookfoot

261 posts in 2152 days


#11 posted 05-20-2018 01:25 AM

Good start. The tools i have in my shop determines the method and steps I take to make my models. You need to ues the grey matter between the ears, If you know what I mean.

View htl's profile

htl

4238 posts in 1362 days


#12 posted 05-20-2018 02:17 AM

That’s the whole fun of these builds, figuring out a way, of the many ways to get it done.
There’s a fast way, a slow way, but no right way, well maybe an easier way.
The safe way is all impotent !!!!!!!!!

-- An Index Of My Model making Blogs http://lumberjocks.com/htl/blog/116729

View darkmyble's profile

darkmyble

58 posts in 490 days


#13 posted 05-20-2018 01:54 PM

Totally agree.. And I got the first of the track bits done.

80 x with 6 spare.. They look great and I’m really happy with the result. On to the next part..

-- If at first we don't succeed, measure and measure again

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