Bandsaw

I was fortunate to have a friend whose father was a retired carpenter and happened to have a saw which totally suited my needs - a good tool as well! I picked it up last week and here are some of the things I have been working on before putting her to use.

This is how it looks (if these photos look odd it is because I rotated them online).

And the reason it is called a bandsaw - the blade is a band of toothed steel which runs around 2 pulleys, 1 of which is driven - in this case by a 550w induction motor.

One of the top guide wheels was supported by a fractured piece of cast aluminium (rubbish material really) so I set about replacing that. Firstly the wheel, and a look under the top guide mechanism. The left wheel support is fine.

Here you can see the fractured holder, and the 1/4" metal strapping which I planned to cut to suit. The hole in the strapping both suited the bolt position and size! Nice, eh!?

I really just break things so that I can angle grind stuff... or take pictures of me angle grinding stuff... honestly! (not really)

This is the replacement shoe which needs a slot ground in it.

There is the shoe with the slot ground - far from perfect, but close to "good enough"!

Here is the top support set correctly - all guides are not touching until pressure is applied in that direction.

And a cut from a piece of 2 1/4" Ash - all working well!

The owner before Ronnie had this set very poorly. (Ronnie used this saw once or twice, but never had the call to, so all comments apply to its previous owner) Out of interest I checked the bottom supports, and the right hand ceramic pressure support thingy (technical term) was deflecting the blade by almost 1mm - BAD. The rear support wheel was about 10mm from the blade!! BAD. All set properly now!

To get to those fixtures I had to remove the cast iron work top and the bolt that secured it was cast into a plastic wing-nut which had rounded and didn't grip any more. I broke that away, removed the bolt with spanners. I then cut a large washer and had my dad weld it to a suitable nut. I cleaned it up with an angle grinder (woo) and it works better than ever! (considering it never worked...)

I will do the same thing for the guide stanchion on the front of the tool - same plastic rubbish nut. I put a wing-nut on there, but it is too small for my delicate fingers to work with! Here is an example of a rip-cut from a future guitar neck:

MUCH to my surprise the starting capacitor blew while I was lightly using the saw!! Now load on the motor wouldn't cause this, and there wasn't even much of that, so I guess it was defective, it is 12 years old after all. Still, I didn't want to see this:

And for the grand price of £5.95 inc. postage I have a replacement part! For anyone running the Elektra Beckum or Metabo BAS315 (and 316/317 - the updates) the start capacitor for the 0.55kW motor is labelled "16400". It is 16 micro-farads @ 400V.

I have some good examples of scroll work to post up, but this post is long enough. I will sign off with a few points.

5/8" (15mm) blades for rip sawing large depths coming - 6 and 3TPI versions.

1/4" (6mm) blade @ 10TPI for general finer sawing on the way.

I found some suitable hardwoods locally. When I manage that bank job I will drop a bit of cash and start building more instruments.

I have 2 bass body wings cut and ready, and 1 guitar body wings cut and ready.

There will be an 8 string guitar this year.

Finally, since no-one would believe this unless they saw it - this is half of the workshop... and tomorrow I start tidying.

Good night and God bless,

Mike

Computer Build #3

It is nice to be posting this from the new machine - it is really a lovely computer! And that was a spoiler. This may become 2 parts - I am getting tired. Lets get the good news out of the way first.

1) It works.

2) It works much better than expected.

3) It achieved a CPU Benchmark of 7257 @ 4.2GHz and it seems stable (more testing).

4) There is more scope for speed, whether it is necessary or not.... ok, it is totally un-necessary, but the potential is there. I think 4.4GHz stable is possible.

5) Temperatures are all within reasonable limits, Idling quite cool.

6) Vcore settings not too high.

7) Not too loud.

So I will get on with the talking. I got my parts this morning - having had a good 3 hours sleep I decided it wise to start building with angle grinders and what not.

I started by cutting out the vent holes with an angle grinder - less impedance = more cooling. Bit rough, but good enough.

Smoothed off with a Minicraft drill + grinding tool.

I then set about mounting the 2x 120mm fans with blue foam to stop them transferring too much vibration.

You can see how I used triangles to space the fan from the frame.

I then replaced the 92mm noisy CPU cooler fan with a quiet (18dB(A)) fan with a large 60CFM air flow (compared to 40).

It ended up looking quite neat!

Now, cutting out the 18CM fan slot in the side of the case. Dangerous cutting and photographing at the same time... what's the worst that could happen (I just shuddered).

Quite circular for an angle grinder! (and for my primitive metal work skills)

Sealed with tape, mounted with zip ties and spaced with the same blue foam. the tape is part aesthetic - the silvery edges from the cut looked a bit naff.

Now to cannibalise a DVD drive (external). IDE, but it will do until I buy (and can afford) an SATA drive.

There is the soft underbelly of the DVD drive!

Looking good!

Big fan!

The black tape above the fan is actually holding on a piece of plastic which blocks an un-necessary vent. I blocked all vents off that did not have a fan in them - I want to control the air as much as possible!

Is this pretty... it seems it... in the same way a big V-twin Harley is...

Loading... it worked!

Testing with Half Life 2 - I am not a gamer, but I do own this game, so I may as well test it. 40FPs on the heavy stuff, 200-300FPS on the light stuff. Again, old game, not like Crysis! Also, this is my brother's monitor - just doing the build/test initially up home where the tools are! I have the benefit of a 22" monitor in my room, so that is nice for photos etc etc...

Checking out some over-clock temperatures.

Running OCCT stress testing the system. (I am using Prime95, Intel Burn Test, OCCT and SuperPi).

4.2GHz, 30*C nominal @ Idle:

60-70*C @ 100% Prime95 (expect higher, around 80 in Intel Burn Test).

CPU Benchmark: 7257 (currently)

Geek specs:

Vcore1: 1.3v

Vcore2: 1.65v

FSB: 210MHz

CPU Multiplier: 20x

DRAM Multiplier: 6x

You can see the Vcore1 is quite low, yet stable. I want to see if I can juggle the FSB and the multipliers to give me a slightly faster RAM clock speed (currently 1260MHz). Interestingly I dropped the Vcore1 from 1.3850v to 1.3v to try and lower the temperature, and I took 1-2*C off the chip! This seems inconsequential, but it really isn't! Hence how I want to either bring the multiplier up, boost the Vcore1 voltage and test the temperatures, or really just get this puppy lean... Anyway, I think an 8 hour Prime95 test should be called upon before I do much more! I will post the results soon, so....

... tonight I will leave a stress test on, and maybe consider some sleep! Hot water bottle (I am such a nanny), some form of sitcom and hopefully a lie in (you can count on it!)

God bless!

Mike