Eric's Blandford Build

Mike41

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#2
Hi Eric,
Welcome to the group build, we are looking forward to seeing your model progress, if you need any help just ask. Have fun.
Mike
 

eric61

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#4
Thanks fellas, I would have had something up before now but the electronics that drives my CNC died, they hadn't been run for two years!, the stepper motors are ok. I have been practicing with my scroll saw but the timber I am using is either too thick or too thin. I have two planks of hardwood that is of a Malaysian wood (sorry don't know the name) but looks a lot like Oak and is quite heavy. I will use the CNC as a thicknesser and also to level out the slight warp and then cut out the parts. All of the parts have been redrawn and the CNC code created for most of them so far.
For Mike41 Mike I felt that some of the parts ** should have been symmetrical, that is, the inside curve and outside curve the same, to that extent I have made them symmetrical and if you would like them I will send them to you.
** Parts 2 & 3 and their opposites, likewise the back pieces 9 & 10 etc.
Unfortunately the site won't allow me to upload a .dxf file.
 

eric61

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#5
The program I am using to redraw the frame parts also has the ability to to resize or better RE-SCALE the drawings, so I can effectivly change the size of the parts to 1/16, 1/8 or 1/200(too small tho').
I am doing the build in 1/32 which make the hull approx.10 x 10 inches, 1/16 will be double that. WHEN THIS project is finished I will build the model in 1/16 incorporating the following features. B3.jpg
This is possible in 1/32 but very tedious!
 
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eric61

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#7
OK, so the electronics finally arrived, picked up and old computer case for $10 and this is the end result.
The power supply on lower left supplies the 5 volts needed for the electronics, the power supply in the top supplies 24 volts needed to drive the stepper motors, the little black boxes on the right are the drivers that drive the motors, cool huh?
The small green board at the bottom is called a "Break Out Board", it recieves the code from the computer and disseminates it to the various drivers ie. X, Y & Z. I have four drivers as I have two motors working the Y axis. Below is a small sample of what the code, known as G-Code looks like, for those who know something about plotting this will look familiar.

G1X2.8621 Y0.3896
X2.8665 Y0.4359
X2.8689 Y0.4772
X2.8696 Y0.4992
X2.8709 Y0.5212
X2.8725 Y0.5461
X2.8733 Y0.5692
X2.8738 Y0.6241
X2.8756 Y0.6502
X2.8759 Y0.6724
X2.8742 Y0.7213
X2.8698 Y0.8182
X2.8659 Y0.8863
The Z (depth) will have been pre set prior to this snippet of code.
P1010810.JPG
 

Mike41

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#8
Hi Eric,
It looks like you have an above average set of tools for this project, this will be an interesting build.
I reduced the amount of detail shown in Goodwin’s book for this project, but you are welcome to add any or all the detail he shows to your build.
One of the nice parts of a group build is seeing the different building styles used for the model. I am looking forward to your progress.
Mike
 
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