Using my new bits

Computer Numerical Control

Using my new bits

Postby loyd » Sat Aug 10, 2019 12:03 pm

I purchased bits from Amazon several weeks ago but didn’t have a chance to test them until this morning. I did a 3d carving using a 1.5mm [0.059”] ball nose bit for finish and a 3.175mm [0.125”] ball nose bit for roughing. They worked as expected and did a very good job. These bits come in boxes of 10 bits. The cost from Amazon was $11.99 for the 1.5mm and $12.99 for the 3.175. The cost is for the box of 10, so you’re buying a solid carbide bit in each case for just a bit over a buck. I’m accustomed to paying 10 to 20 times that for a bit, so this was a purchase more to see about the product than for the need of the bit. It turns out to be a very pleasant surprise.
These bits are 1/8” shank so require a collet to accommodate. I purchased precision collet and collet nut from Precise Bits a few years ago because I suspected runout on the collet I had. I’m not sure of the need for the expense but it sure is pretty. Only complaint is the multipronged collet wrench needed. It’s difficult for me – having no depth perception may be my problem – to get the wrench into the 4 prongs to mate the collet nut, but I managed.
The result is very good as you can see in the Corian oval. The 3d figure is just clip art from Vectric’s V-Carve 9.5 that I use.

IMG_1352 (Copy).jpg


IMG_1349 (Copy).jpg
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Re: Using my new bits

Postby loyd » Tue Aug 13, 2019 8:20 am

IMG_1358 (Copy).JPG


This is the 3d carving I described before. I'm impressed by the outcome using those new 'cheap' carbide bits. Richard mentioned inlaying in box tops a while back. These may be a good candidate to use for Corian inlays. The surface is really good on this carving.
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Re: Using my new bits

Postby sid_matheny » Tue Aug 13, 2019 9:44 am

Oh yeah that does look good. Do you plan on making several and save for future projects?
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Re: Using my new bits

Postby loyd » Tue Aug 13, 2019 10:46 am

Haven't though about making more just yet.
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