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jaydee · 01-11-2003, 04:37 PM

Well I got a little to exited. As I was drawing this out I discovered a flaw in my 1/8" thick base. I do not belive I can use just a 1/8" thick peice of copper as it will not be thick enough to propery thread screws into as they cannot go past the bottom of the baseplate.

So a modification had to be made. I decided to go with 1/4" instead and mill out 1/8" of the center part so I still have 1/8" to make the base design with. This will allow for proper threading and will also let me put the O ring groove in that base aswell as opposed to putting it in the acrylic center piece. I would then add another 1/4" top plate for the inlets/outlet(s). The top and bottom peices will be 2"x 2" while the center acrylic peice will be 2"x3" and will have the mounting holes for the AMD boards. Or I may very well just make the bottom peice 2"x3" and put the holes in it for the mounting holes. That would be more stable for mounting I would think. The shorter the screws the less possibility of side to side movement. I should have 1/2" on each side to play with so I think I can do that although I havn't put it on paper yet.

As for what will happen in the center of the base peice....

I have some 1/4" AL laying around and plenty of acrylic at work to make a working prototype. If that goes well I will order some copper. The only real milling of this block is going to be milling out the center down to 1/8". With a 3/8" endmill I should be able to do that in 15mins. The design in the middle will be done with the CNC but with a drill bit instead of an endmill for precision (also a hint

). That will take roughly 5 mins. The Acrylic middle will be cut out with the laser at work which will take about 2 mins. The top peice, if I decide to use copper instead of acrylic, will take a little time to drill outthe barb holes and then tap them. It will also need a O ring groove cut into it. probably another 20mins.

I will not have time to get started on this untill tomorrow, but I should have the top and bottom peices done with the O rings and I will go into work early Monday and cut the center acrylic peice.

The center acrylic peice will have the nozzle holes lasered into it. Aslo note lasering the acrylic peice's also eliminates the microfractures caused by drilling so cracking should not be much of a problem.

In any event I should have a working AL prototype Monday night.

That should bring up any errors in design so I will not waste any of the Copper when I get it.

Only minor problems I have now are outlet positions. Going to be cramped.

01-11-2003, 04:37 PM	#4
jaydee Put up or Shut Up Join Date: Dec 2001 Location: Spokane WA Posts: 6,506	Well I got a little to exited. As I was drawing this out I discovered a flaw in my 1/8" thick base. I do not belive I can use just a 1/8" thick peice of copper as it will not be thick enough to propery thread screws into as they cannot go past the bottom of the baseplate. So a modification had to be made. I decided to go with 1/4" instead and mill out 1/8" of the center part so I still have 1/8" to make the base design with. This will allow for proper threading and will also let me put the O ring groove in that base aswell as opposed to putting it in the acrylic center piece. I would then add another 1/4" top plate for the inlets/outlet(s). The top and bottom peices will be 2"x 2" while the center acrylic peice will be 2"x3" and will have the mounting holes for the AMD boards. Or I may very well just make the bottom peice 2"x3" and put the holes in it for the mounting holes. That would be more stable for mounting I would think. The shorter the screws the less possibility of side to side movement. I should have 1/2" on each side to play with so I think I can do that although I havn't put it on paper yet. As for what will happen in the center of the base peice.... I have some 1/4" AL laying around and plenty of acrylic at work to make a working prototype. If that goes well I will order some copper. The only real milling of this block is going to be milling out the center down to 1/8". With a 3/8" endmill I should be able to do that in 15mins. The design in the middle will be done with the CNC but with a drill bit instead of an endmill for precision (also a hint ). That will take roughly 5 mins. The Acrylic middle will be cut out with the laser at work which will take about 2 mins. The top peice, if I decide to use copper instead of acrylic, will take a little time to drill outthe barb holes and then tap them. It will also need a O ring groove cut into it. probably another 20mins. I will not have time to get started on this untill tomorrow, but I should have the top and bottom peices done with the O rings and I will go into work early Monday and cut the center acrylic peice. The center acrylic peice will have the nozzle holes lasered into it. Aslo note lasering the acrylic peice's also eliminates the microfractures caused by drilling so cracking should not be much of a problem. In any event I should have a working AL prototype Monday night. That should bring up any errors in design so I will not waste any of the Copper when I get it. Only minor problems I have now are outlet positions. Going to be cramped.