Custom adjustable blade guide pics Uploaded
- Hi all,
I've finally uploaded the pics of my custom blade guides to the Photos
section. My album is titled "Sid's Mods" and is on pg. 3. Let me know
what you think!
- --- In firstname.lastname@example.org, "sidgarcia2000" <sidgarcia2000@...>
>So in the end, are you happy with how it cuts? Is it a big improvement
> Hi all,
> I've finally uploaded the pics of my custom blade guides to the Photos
> section. My album is titled "Sid's Mods" and is on pg. 3. Let me know
> what you think!
over the stock guides (the ones like mine that nicely twist the blade
as you tighten, making for an off-square cut)?
Sigh, another project to add to my list !
> So in the end, are you happy with how it cuts? Is it a big improvementWell, I honestly tried everything else to get my saw cutting square.
> over the stock guides (the ones like mine that nicely twist the blade
> as you tighten, making for an off-square cut)?
> Sigh, another project to add to my list !
> - John
When it seemed that having to still use my old chop saw was going to
render my $200 investment a waste, I thought I'd go for broke and make
my own guides.
The design is pretty simple, but I had nothing to go on when making
these, so I made a few mistakes. I made the front guide to the same
length as the original, but when I noticed the blade was dancing around
in round stock, I realized the guides were too far apart, so I had to
cut the rails, lengthen them, and re-weld.
I made the rear guide adjustable in both X and Y axes (a pivot within a
sliding joint), but the T-slot I fabbed up was another doozy. I don't
have a milling machine, so I made the slots by plug-welding different
sized flat stock. Due to the heat involved in the welding, the collar
part of the slot expanded a bit and wouldn't fit the sliding mechanism,
forcing me to grind it down.
Another headache was all the hand taps I went through tapping threads to
take the 1/4" x 20 bolts. I broke 3 Home Depot taps making all the
threads for the bearings and adjusting bolts. And at $5 a piece, it was
more than a bit annoying.
I suppose this type of project could have been done any number of ways
(and likely better by someone with a machinist background) I will say
this...even though this project set me back 2 weeks and more money than
I bargained on, it sure was sweet to be able to "dial in" my blade pitch
by turning a few bolts. I can calibrate the angle by making a cut,
checking the cut with a square, and adjusting both guides accordingly (I
have to set the saw vertical and "eyeball" the two guides to make sure
they are more or less both set to the same angle. Then I'll adjust the
horiz. angle if it's off. I am now getting *perfect* cuts in up to 2 7/8
pipe (the largest I've tried). It wasn't so much about being obsessive
with perfectly square cuts as it was about the trickiness of cutting
pipe. When my old guides were cutting crooked, the angled blade would
tend to pull in toward the vise. However, the curvature of the pipe
would act to force the blade outward. The resulting cuts would end up
looking like a fishmouth (it was that bad).
There is probably an easier way than making the guides out of scratch.
Maybe it would be possible to cut the exising guides and make a pivot on
each, with bolts to push down on each side to adjust the angle? (My
guides were cast aluminum, and rather thin)
- All's well that ends well, right? So what if it took you a while, now
your saw will be way more useful.
So if I understand it correctly, are your 2 degrees of freedom that
you (1) can move the guides towards/away from each other, changing the
'blade opening', as well as (2) changing the 'twist' of each guide
with your bolt/pivot arrangement? Or can you also adjust each guide
toward/away from the vise as well....oh wait that would be a waste,
you can tweak that with the rear vise plate.
I wish my saw had this, will probably do a similar thing once I finish
the screen room on my deck. Oh yeah and my daughters bedroom mirror,
and paint my tablesaw dust collector I made, and ... and.... it never
ends does it!
Congrats on making a very nice saw from a $200 machine.
Even in its less than perfect state, I still love mine, a true bargain.