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Testing 123

August 16, 2012

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Simple device for RC boat turrets

February 9, 2012

So today I worked on installing a small ‘nodule’ into my hitec radio system for my boat. With this simple device installed, It means I cant accidentally slam the cannons into the deck as a spin them from left to right! Simple. Also it was  a great excuse to use the CNC machine.

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Scharnhorst ready for battle

January 26, 2012

So, my 1-144 scale battleship is ready for action. She is the German ‘Pocket’ battleship Scharnhorst. It carries 3 turrets with three barrels each containing 7/32 inch bearings. Generally, she can hold about 150 bearings per turret. I am continuously working on it, but recently I worked my butt off to get it ready for battle in Newcastle.

The Scharnhorst in final stages of preparation for battle. She looked good before getting shot at!

 

Here she is from another angle, on the bench at home after I gave it a paint job.

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Tractor!

October 4, 2011

Thanks to my missus’s dad, I got to borrow this big sucker to work the backyard over. She is a great unit to drive. I used it to dig huge French drains in the backyard (Had some problems with drainage) and also drill the stumps for my new deck. The pinching bucket on the front was really helpful to pull out the old stumps. Simply grip and rip. The stumps that I was digging out by hand (and taking hours) came out in seconds!

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Postbox almost finished

May 1, 2011

Spend today building our new postbox. We wanted something modern that you couldn’t just buy at Bunnings, and something that5 would ‘soften’ the look of the house a little.

Treated pine posts (painted black) with oiled merbau wood. A Stainless steel face (actually a brick mount one that I liked the look of).

 

Built to the golden ratio.

Still have the number, light and no junk mail to attach...

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New spindle, new Z axis, new towers, New Machine!

April 26, 2011

It’s been some time since I have updated on my CNC machine, and quite  a few changes to my machine have taken place.

 

The new Spindle and VFD was ordered from China. Its a 3KW air-cooled spindle with a matching 3 phase VFD. It will do any speed between 0 and 24,000 RPM.

Google G1 in there for scale...

 

Here she is mounted to the machine. The tapped bolt holes make for a quick and easy mount job. At first I had the unit plugged in backwards so as I was actually spinning the end mill backwards. That meant that it was simply burning through the material. Ha! After I flipped two of the three phase wires, she ran the right way and cut like a dream.

Note the updates. New Z axis, and fully alum towers.

 

Currently I am working on controlling the speed of the unit by communicating via RS485. I have a USB to RS485 converted, but the VFD appears to be not communicating properly.

 

In the meantime I have been working on a few secondary systems. I cut the probe mount on the unit itself out of HDPE. The homing switches have also been installed.

Cut on the machine out of HDPE (chopping board) Currently has a few 'noise' issues. Hope to fix it with shielded wiring.

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Update of renovations..

April 26, 2011

So, its been quite some time since I have updated the blog, mostly because it has been a terrible summer here in Melbourne, we simply didn’t have that much sunshine!

Anyway, enough excuses. I have been doing a bunch of things lateley.

Facia, Eaves and gutters.

Here is a photo of the front door as it stands. Note the additional of guttering, a down pipe, eaves and facia. Kylie is yet to paint the eaves, and will be doing another coat on the facia also. Since last photo (but not done recently) is the painting of the door surround. Kylie thinks there is too much white, so we will probably be painting the door grey or something. Usually the pot plant (far right) is beside the door, but I oiled the porch today, so I moved it.

 

Built a couple of new fences. They were simply falling down. (or had fallen down). The one out the front had just been neglected and a few palings has fallen off. The beams were so rotten that the palings were holding the thing up…

Yay for the little plants!

 

The one out the back has been pretty buggered for a long time. Recently the dogs pulled/knocked a few palings down. They had enough room to escape, but the good little puppies they are knew they shouldn’t leave. A quick trip to Bowens fixed that.

Goes all the way behind that plant to the corner.

 

Been working on the roof a lot over summer (haha). All the pointing was buggered, and most of the bedding was ruined too. After the success of replacing the tiles on the kitchen, a bunch of broken/cracked/damaged/old tiles were replaced all over the house. New gutters means that I shouldnt have to worry about the roof for a long time.

Gutters, Valleys, Bedding Pointing tiles Oh my!

 

Kylie’s mum was kind enough to give us a Spa! She is moving from her large family home, and downsizing to a apartment in the city. She couldn’t take it with her, so she gave it to us!

 

Currently it is sitting in the backyard waiting for me to pickup a trailer-load of sand. You can see the plot where it will reside. The deck will eventually surround this area with a bench seat at the end closest to the fence.

Ready for sand...

 

Next up, new postbox and a new bin hide.

Gonna get ripped out and replaced...

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New (new) Z axis begun

January 31, 2011

So, after I struggled with the flexibility of MDF for a while (the V-Groove bearings were working themselves loose) I decided to bite the bullet and begin the all-alum buildup. As a test, I decided to do the simplest part. The Z axis.

So, I got a 16mm sheet of 5083 Alum custom cut from Action Aluminum. It is 190mm x 300mm x 16mm.

I promptly drilled the holes,

Tapped the thread to accept 1/4 inch (V-groove bearings were bought in the US.)

And mounted it to the machine. I must say the rigidity has increased tenfold. Amazing.

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Polycarb RC ship frame

January 16, 2011

Main frame with turrets, battery, some electronics and the CO2 cylinder attached.So, here we have the frame piece we have been designing for some time now. It’s really starting to come together. Some more work is needed, such as electronics wire routing, pneumatic routing and the ballast pump etc, but the basic shape is done. The frame ‘clips’ inside the hull so that we can quickly pull the frame out and work on it separate to the hull. Should make for easy modifications and maintenance.

The tail detail showing the remote rudder control, and the rear servo mount for the turret rotationSome detail of the rear section (stern that is). The yellow tube you see has a push-rod system in it, which allows us to remotely control the rudders. Hopefully as the rear sinks, the rudder control servo is still dry and hence the ship still functions correctly. Using polycarbonate means that the frame is bulletproof, and also makes maintenance easy because you can see any issues! This piece was milled on the CNC machine (Actually, it was milled incorrectly on the CNC machine, the next revision will be slightly taller.

Front detail showing the front servo mount, and the handles/access holes for the cylinder.Detail of the front of the ship showing the front servo mount (servo is a winch servo which permits full rotation of the turrets) and the access hole for the bottle and regulator. Here, you can also clearly see the detail of the cuts that are made with the CNC machine.

Using QCAD for the design, and Vectric Cut2D for the Gcode creation.Here, you can see the CAD design used to create the main central piece. Using a DXF compatible editor makes this process a snap.

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Dust collection finally!

January 14, 2011

The dust collection, fresh out of the box.I have just bought a 1HP Dust Collection unit, and I am hoping that once it is properly attached, it will eliminate most of the dust and chips. Its a Carba-Tec unit. Pretty basic configuration, with a 5 micron filter. One day I will get a 1 micron filter, but for now the standard one is a million times better than nothing.

A few blast gates positioned in proper locations, and I will be able to use the collection for the bench tools (Drill press, Drop Saw etc), for the power tools (belt sander, jigsaw etc) the CNC and the table saw. I have tested the table saw and I must say, I should have done it earlier!

Only problem I am getting is getting a perfect seal between the DC components (blast gates, T junction etc) and the 100mm PVC. The fittings are pretty good, but nowhere near sealed. (Sealant? Glue? Duct tape?) Currently using Duct tape which works pretty well, but not great.