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Dremel CNC Plans

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danny_galaga:

--- Quote from: Ed_McCarron on September 21, 2008, 11:03:03 am ---I was looking at this a while back, but my biggest problem would be finding the linear bearings and rails at a reasonable price.  I tend to overengineer.

--- End quote ---

dunno much about anything else in this project, but i can tell you bearings are damn cheap, and there are a huge range available. remember too that amazingly, there are hardly any factories in the world that actually made bearings (for instance, if it werent for the fact sweden was neutral, england had no supply of bearings in WWII!). so bearings are very standardised. and made for a wide range of purposes. i bought some bearings for a model car from a bearing shop. if i bought 'genuine' spares they would have cost and arm and a leg. but they are exactly the same (as in from the same factory) as bearings used in shimano fishing reels.

take the measurements you need and go to a bearing shop. in australia CBC bearings are great. dunno if they are a world wide company or just aussie. then you just need to tell them if they need seals, rubber or metal etc. the bearings i bought had to be ordered in but still cost maybe a quarter of 'genuine' ones...

SavannahLion:

--- Quote from: danny_galaga on September 28, 2008, 12:16:24 am ---
--- Quote from: Ed_McCarron on September 21, 2008, 11:03:03 am ---I was looking at this a while back, but my biggest problem would be finding the linear bearings and rails at a reasonable price.  I tend to overengineer.

--- End quote ---

dunno much about anything else in this project, but i can tell you bearings are damn cheap, and there are a huge range available. remember too that amazingly, there are hardly any factories in the world that actually made bearings (for instance, if it werent for the fact sweden was neutral, england had no supply of bearings in WWII!). so bearings are very standardised. and made for a wide range of purposes. i bought some bearings for a model car from a bearing shop. if i bought 'genuine' spares they would have cost and arm and a leg. but they are exactly the same (as in from the same factory) as bearings used in shimano fishing reels.

take the measurements you need and go to a bearing shop. in australia CBC bearings are great. dunno if they are a world wide company or just aussie. then you just need to tell them if they need seals, rubber or metal etc. the bearings i bought had to be ordered in but still cost maybe a quarter of 'genuine' ones...

--- End quote ---

I was not aware of that. A quick google search confirms it. A U.S. site only lists 27 companies. I'm sure that's not all of the world wide manufacturers, but for something that's such an integral part of our society, I figured there would be more than 27. Of course... this site lists 75 Microprocessor manufacturers, claiming to be almost all of them. So I guess it shouldn't come as a surprise.

mameotron:
If you want to go a little bigger, check this out:

www.mechmate.com

You can throw a full sheet of plywood on this.  Mass produce cabinets!  But you're looking at a $5,000 investment here.

Still, the forum there is phenominal.  Lots of user builds documented, and the designer is compltely willing to give away plans, complete with dimensioned drawings.  Worth looking at even if you don't want to build one that size.

punxrus:

--- Quote from: mameotron on September 28, 2008, 03:01:30 am ---If you want to go a little bigger, check this out:

www.mechmate.com

You can throw a full sheet of plywood on this.  Mass produce cabinets!  But you're looking at a $5,000 investment here.

Still, the forum there is phenominal.  Lots of user builds documented, and the designer is compltely willing to give away plans, complete with dimensioned drawings.  Worth looking at even if you don't want to build one that size.

--- End quote ---

Thanks for the link! Pretty nice forum from what I've read.

DaOld Man:

--- Quote from: mameotron on September 28, 2008, 03:01:30 am ---If you want to go a little bigger, check this out:

www.mechmate.com

You can throw a full sheet of plywood on this.  Mass produce cabinets!  But you're looking at a $5,000 investment here.

Still, the forum there is phenominal.  Lots of user builds documented, and the designer is compltely willing to give away plans, complete with dimensioned drawings.  Worth looking at even if you don't want to build one that size.

--- End quote ---

Yes, thanks for this link.
Very interesting..

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