On 06/25/2017 09:50 AM, Larry Jaques wrote:
> On Sun, 25 Jun 2017 07:05:06 -0400, JBL <
J...@ez1.net> wrote:
>
>> On 06/25/2017 12:45 AM, Larry Jaques wrote:
>>> On Sat, 24 Jun 2017 23:13:21 -0400, JBL <
J...@ez1.net> wrote:
>>>
>>>> I am attempting to make a few "dovetails" which are brackets used to
>>>> attach a telescope to a telescope mount. If purchased outright, for the
>>>> kind of dovetails I need, the expense is beyond my budget. I recently
>>>> acquired some 1/2" aluminum sheet/ bar. The dovetail needs to be 1.75"
>>>> wide at the base, with the sides cut at a 15 degree angle. Length can
>>>> vary a bit, but usually about 12-14". My plan was to make at least 3
>>>> for the various telescopes I have.
>>>
>>> Now is the perfect time to learn how to _really_ use a file. This is
>>> your cheapest option and the best way to learn a necessary skill. (Now
>>> watch you scoff at it.)
>
> Nope, you just completely ignored it. Same, same, so solly.
Completely ignored what? Using a file to achieve the necessary 15
degree angles on both sides of the aluminum. Even you expected I would
"scoff at it" which I did. What was the point anyway?
>
>
>>>> I thought I'd be able to get away with an old circular table saw I had.
>>>> Last week, I made some 1/4" thick dovetails of a slightly different
>>>> design using my table saw fitted with a plywood blade. This went well,
>>>> but when I tried to make these thicker 1/2" dovetails today, I ended up
>>>> burning out my saw.
>>>
>>> (Burned out your saw? Nasty comments about your IQ suppressed, but
>>> most people know when to quit.) HSS plywood blades won't hack it. Try
>>> carbide.
>>
>> I was under the impression that the Craftsman I was using just might
>> have some sort of thermal protection circuit. Unfortunately, turns out
>> that it did not. It wasn't a huge loss though as I got it surplus.
>
> I see that you did not learn the lesson from that experience.
> You're on your own.
What lesson? The saw was burned out yesterday, period. Nothing else
has been done until I researched further, which was the primary reason
for coming to this group.
>
>
>>>> Ideas for a cheap way to make these dovetails would be welcome. I've
>>>> been watching Craigslist for another circular to replace the burned out
>>>> one, but I don't think it's the best tool for this job without a $30
>>>> plus blade made to cut metal and even then I'm not sure it will do it.
>>>
>>> Drop by Harbor Freight and get some $5 carbide tipped blades. Oops,
>>> they no longer make the cheapies. (Kids are screwing it up, bigtime.)
>>> Too bad. 46231 and 00529 are some I still keep in stock. Depending on
>>> the alloy, these C3 tips can leave a rough cut, but some alloys cut
>>> cleanly. Avanti 10" x 60T blades are $15 at Home Depot. Cut the
>>> angle and file the bottom corner. Or regrind the teeth to 15. This is
>>> if you were overstating the burnout of the table saw motor. <sigh>
>>
>> Yes, I don't see those blades listed at HF.
>
> What part of "Oops, they no longer make the cheapies." did you miss?
Got it. GOT IT. Do YOU get it?
Now for that I stand corrected. The link I asked about above was not
the link for the blade you were referring to for $15. Can our precious
Larry forgive the oversight? Me thinks not and me doesn't give a rats
you know what anyway.
>
>
>> The one I used during the burnout was this one:
>>
http://www.homedepot.com/p/Avanti-10-in-x-200-Teeth-OSB-Plywood-Saw-Blade-A10200X/202021698?MERCH=REC-_-rv_nav_plp_rr-_-NA-_-202021698-_-N
>>
>>
>> I guess $5 more might have saved the saw. Ok, guess I'll start over
>> looking for another surplus saw and pick up the better blade and try
>> again. Thanks!
>
> No, learning to stop trying when a blade isn't cutting is the lesson
> you fail to learn. If it's not working, stop and determine what is
> wrong. Check the sharpness of the blade, verify rotation, verify
> applicability, etc. Plywood blades don't work on metal. Got it?
>
> You're either a troll or not a tool-using human. G'luck!
If you weren't prepared for additional questions for what you perceived
as obviously a newcomer, then you shouldn't have responded in the first
place. Fortunately, I don't have time to sit here and argue with a has
been and I am now adding you to my kill file so I will see no more
responses. You ought to take the advice of other group members here and
give people a break. You remind me of a serious narcissist that
probably has some significant issues going on at home that warrant
serious attention. What a pity that this is the only channel you have
to vent your frustrations.... but it will no longer be at my expense.
BYE!