Project: Alien Hospital

[The boy 4rm oz]

Man that really sucks about the res, ai hope you find your way around this problem.

[_ferry_]

I just tried some drilling with a modified drill, after reading and applying this:
http://www.plasticsmag.com/features....sue=Sep/Oct-01

It works better, I'm able to drill 11mm without the need to drill by steps ( starying with 3+7mm, and after that 11 mm)
No chance of chipping/cracks. At least that's what I've expected by now.

Only thing is that he needs more cooling. But who cares. There's plenty of water over here I also changed the speed from 500 to 900 rpm, according to the table listed on that website. It doesn't matter if i press soft or hard on the press drill, it works. Only the end need some care not breaking the last few mm.

I wish i could buy some pre-modified drills. But i think they're hard to get. Does anyone know a brand or whatever?

[Mach]

You might try a brad point bit. Not sure what they're called in the NL but I could buy them in France and the UK at any DIY. The look like this: http://www.woodcraft.com/EnhancedIma...ameCode=146646

You can buy plastic bits in the US from Craftics; not sure who carries them in Europe. Here's the link to craftics. http://www.craftics.com/products.cfm?Category=87 You may find them under the brand name of PlasDrill or Plas-Drill

[_ferry_]

Thanks for the info! I think they're hard to get in europe/the netherlands, but whatever. I'm done drilling this thing. Repaired it today
A wood drill (that's the name we use here) like mentioned wasn't necessary. The modified drill works fine.

Next ting is the rear cover including a decent seal. That 'll be a though job i guess.

[_ferry_]

Here are some more pics:

Before the crack

1 of the indicators after some polishing.

Starting to repair the reservoir. Lets get divorced

Preparing for milling. I need to remove 5mm with a depth of 8mm or else you'll see the edge after mounting.

Job done.

Preparing the reservoir.

My modified drill.

[brinkz0r]

I was planning on ordering this drill set of plastic drills. They may do the trick for you next time. For now I'm still drilling every hole at the highest rpm my drill press can do, even 12mm holes in one step. A little water makes the holes look better, but you found that out also already.

[DonT-FeaR]

looks great man!

[_ferry_]

Hey guys! I'm still alive

I spend some time at the reservoir since the previous one was still not the way i wanted it.

First i made a sketchup, so i could double check the dimensions and looks and see if it's possible to build without modifications after building it.

And this evening i've made the top of it:

I found out that those heat-set nuts (stolen from some Acrylic casings ) are very usefull! I heated them and pressed them in a 4,5mm drilled hole. After cooling down they're rocksolid!

[jdbnsn]

Oh thank heavens, you're back!!! I have been wanting to see the completion of this epic project and was concerned you had vanished into thin air. Welcome back!

-Jon

[blueonblack]

I'll second that, welcome back!!!