Enclosures - Page 2 - Electronic Circuits Projects Diagrams Free

AtomSoft · 12th March 2008, 12:09 PM

This was just for fun lol I dont like messing with chemicals due to having a 1 1/2 year old son who i watch most the time since i work from home most the time. Also i know its crappy but heh i like it because i made it. Like there are some ugly kids in this world but the parents of the child always says there child is cute. Hence this little thingy is my child and its cute lol.

But i should be getting a new sheet of plastic today with the correct tools and parts i and going to make a nice case. It will be done like towards the end of the day. I will take some pictures. Hopefully this time it will be nice lol.

jpanhalt · 12th March 2008, 12:31 PM

Just a couple of comments.

Re: drilling plastic. Bits designed for metal and wood tend to hog into acrylic plastic, thus causing it to crack. If you grind off the sharp leading edge on each lip of the drill (called dubbing off) perpendicular to the face (i.e., remove the acute angle of the cutting edge), the action will be to shave the plastic and not to hog in. Only a tiny amount needs to be ground. A flat face of 10 to 30 thousandths inch is usually adequate. Of course, the bit is for plastic only after that. BTW, it also works with brass, which also tends to hog in.

Re: cementing plastic. Chloroform works, but eventually leads to crazing of the plastic. Liquid adhesives available for the purpose have substances added to reduce crazing at the joint. Acrylic is easier to cement than polycarbonate.

John

AtomSoft · 13th March 2008, 12:50 AM

I made this from 2 Maxim Sample cases. Nice neat fits perfect (dremel is good for many things) just need to add 1 more set of cables and that would be audio in.

Pictures:

rjvh · 13th March 2008, 07:39 AM

if you want to use metal you could try aluminium (bend it in the prefered shape and bolt it together)

or brass and use brazzing to asamble it (still one side have to be cliped or skrewed/bolted)

copper alloy you can get some verry nice finishes with it

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12th March 2008, 12:09 PM	(permalink)
AtomSoft	This was just for fun lol I dont like messing with chemicals due to having a 1 1/2 year old son who i watch most the time since i work from home most the time. Also i know its crappy but heh i like it because i made it. Like there are some ugly kids in this world but the parents of the child always says there child is cute. Hence this little thingy is my child and its cute lol. But i should be getting a new sheet of plastic today with the correct tools and parts i and going to make a nice case. It will be done like towards the end of the day. I will take some pictures. Hopefully this time it will be nice lol. __________________ My Name: Jason Lopez My Goal: To learn and Create. My Micro: PIC and soon AVR or ARM7 AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro

12th March 2008, 12:31 PM	(permalink)
jpanhalt	Just a couple of comments. Re: drilling plastic. Bits designed for metal and wood tend to hog into acrylic plastic, thus causing it to crack. If you grind off the sharp leading edge on each lip of the drill (called dubbing off) perpendicular to the face (i.e., remove the acute angle of the cutting edge), the action will be to shave the plastic and not to hog in. Only a tiny amount needs to be ground. A flat face of 10 to 30 thousandths inch is usually adequate. Of course, the bit is for plastic only after that. BTW, it also works with brass, which also tends to hog in. Re: cementing plastic. Chloroform works, but eventually leads to crazing of the plastic. Liquid adhesives available for the purpose have substances added to reduce crazing at the joint. Acrylic is easier to cement than polycarbonate. John

13th March 2008, 12:50 AM	(permalink)
AtomSoft	I made this from 2 Maxim Sample cases. Nice neat fits perfect (dremel is good for many things) just need to add 1 more set of cables and that would be audio in. Pictures: __________________ My Name: Jason Lopez My Goal: To learn and Create. My Micro: PIC and soon AVR or ARM7 AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro

13th March 2008, 07:39 AM	(permalink)
rjvh	if you want to use metal you could try aluminium (bend it in the prefered shape and bolt it together) or brass and use brazzing to asamble it (still one side have to be cliped or skrewed/bolted) copper alloy you can get some verry nice finishes with it