Milescraft -
http://www.milescraft.com.au

Milescraft 3D Pantograph
Review

If you are into wooden sign making as a hobby, you will probably be
familiar with some of the limitations of the sign making kits available
on the market
today that are marketed to the DIY or hobbyist woodworker. And this
limitation lies in the fact that most sign kits come with only one or
two sets of letters
in a generic font. And it is tough to find different letter templates
that will work with the kit.

Well, with the 3D Pantograph from Milescraft, this is no longer a
problem. The amount and type of templates you can use is only limited by
the number of
fonts your can print from your desktop PC. And what's more, the 3D
pantograph can also replicate 3D shapes and images. For this first part
of the review,
we will look at 2D routing with the pantograph. Let's take a closer
look.

The 3D Pantograph
Some might be familiar with a pantograph from their school or childhood
days. They were the in-thing in the craft world at one point in time,
allowing crafters
to copy an image onto paper or scale an image up or down simply by
tracing it on one piece of paper using the pantograph, and on the other
piece, the pencil
or marker would recreate the image desired.

In these modern times, much of this craft has been converted to, and is
achieved by use of CNC routers and other computer driven cutting tools,
but the
home hobbyist sign maker likely doesn't have, or would want to spend the
many thousands of dollars needed for just a small CNC routing setup. The
3D Pantograph
provides a cheaper, albeit less sophisticated option. But with care and
practice, you can achieve excellent results that rival the computer
driven tools.

Setup
The 3D Pantograph comes in a fair sized rectangular box and includes
most items you will need to get started. You will have to supply a
router to attach
to the Pantograph (it accommodates routes with bases up to 6" diameter),
as well as construct a mounting board and holding jig to hold your
workpiece while
the routing is taking place. A dimensioned diagram is supplied in the
instructions to make this (You need to supply the material though - a
couple boards
(chipboard or ply works best) and half a dozen screws is all that is
needed).

Installation is fairly straightforward, following the instruction sheet.
A few text instructions would not have gone astray here to help avoid
confusion
on one or two of the steps as the whole instruction sheet is image
guided only. Nonetheless, the installation is fairly straightforward and
I only had
one item put on incorrectly, which was easily reversed and corrected.

Once your pantograph is assembled and you have it sitting on your
mounting board, you then have to square things off, basically so the
router plate is sitting
as flush as possible with the surface of your sign board piece. You will
need to complete these steps each time if you use different thickness
boards for
your signs. If you use the same thickness, then you really only need to
do this once, but an occasional check wont hurt either. Basically, with
the router
secured in the router plate, sit the plate on top of the board you are
using for your sign. Now, obviously the "legs" of the pantograph will
need to be
touching the mounting board for support, so lower these to touch if
required. Now you simply have to make sure the "arms" of the pantograph
are sitting
the same distance from your mounting board on each end. So the left arm
(when viewed from the front) and the rear arm need to be level across
their length.
I just used a small ruler to check. Adjust the adjustable rear feet
screws as required to level the arms out. This only takes a minute. Once
done, have
a quick peek at the underside of the router plate to ensure it is
sitting flat on the sign board. Don't worry if you are 0.00001" or even
0.005" high on
one end. Just check by eye. If it looks flat, it is flat enough for the
purpose.

Ok, now you have to secure your sign board to the mounting board. No
clamps are needed, which is good because these could get in the way of
the pantograph
arms. Instead, you basically wedge the board between two stop blocks
that are added to the mounting board when you were constructing it (see
photos). These
plastic wedges work well and hold the board in place against the blocks.

Next you need to decide roughly where to place the printed letter sheets
so you can trace them. Here you use your own judgment. There is no exact
or correct
spot. Basically, place a letter down on the board, and use the tracing
rod to follow around the outside of the letters. Note the position of
the router
bit in the router (which is mounted in the router plate) and check you
are not going to come too close to the edge of your sign board. Always
cut your
sign board to a larger size and then cut it down to final dimension
later on. This provides a margin for error when using the Pantograph.
However, once
you have created a few signs, you will have a better idea of a closer
dimension to cut your boards.

Now, each letter/number sheet of the set that comes with the tool (there
are 4 font sets included) has two dots marked on them. One says
"LOCATING DOT"
and the other says "SPACING DOT". Unfortunately the instructions don't
really say how these are used, and to be honest, I was stumped for a
little while.
But I did come up with a method for accurately spacing the characters
that seemed to work well. Firstly, what I did was extend the line that
these dots
sit on onto my mounting board. So when I mount the next letter on the
board, I can line it up pretty much in the exact same position and angle
as the last
sheet (see photo). Now, once the first letter is routed, I place the
next letter in position, move the tracer rod so it is sitting on the
Locating Dot
on the next letter, then move the sign board across until the outer edge
of the router bit is just shading the right edge of the routed letter on
the board.
Because the Locating Dot is spaced to the left of the letter on the
sheet, when you move the router trace rod over to start the letter, it
creates the
required spacing you need. I hope I have explained that well enough.
It's one of those things that is hard to grasp unless you have it all in
front of
you so you can see how it all works with one another. Note that this is
probably not the actual way to do it, but with lack of instruction in
this area,
you need to improvise. I also found that this method doesn't require you
to mark your sign board for spacing, and it seems to work just fine for
me, so
I'm sticking with it!

Using the Pantograph
So far I have only discussed the processes for routing in 2D... i.e.
routing designs or making designs. The pantograph can do 3D as well,
apparently, but
I need to find a good 3D pattern to try and replicate with this tool, so
the 3D part will be included later as a second part. For now, it's all
2D work.
Also, I'll offer some advice of what not to do.. I guess you could call
these newbie mistakes.

Ok, for my first ever sign using this Pantograph, I thought I'd go for
something simple. A 3-letter sign for my son. His name is "Jay" so that
would be
a quick and simple sign. To complicate things, I chose the
Oriental/Chinese style font from the set. Each letter sheet has the
upper case/capital  letter
on one side, and the lower case on the other. Good thinking! So I went
with upper case "J", then lower case "a" and "y".

I set things up as per above. I used a standard straight cut bit, but I
think a spiral cutting bit would work much better. I've got one on order
now!

Now, to craft the "J" all you need to do is follow the outline around
the letter on the sheet with the tracing point/rod. The router moves in
the same manner
as the tracer moves, so you can create the letter accurately. And of
course, this means that virtually any letter, or design can be routed
out too. You
can even make your own letter sheets using your computer and whatever
font you require. The options are almost unlimited!

But I digress... back to it. Note that the pantograph reduces the size
of the letters by either 40%, 50% or 60% (this is adjustable) so the
letters will
be routed smaller than the letter size on the printed sheet. Letetrs can
be routed from Simply trace around the outside of the letters. Now, my
first "mistake"
was to decide to have the outline of each letter run in the middle of
the tracer rod tip. In fact, this has the effect of widening the letters
a little,
and in the case of the font I was using, made them a little less
authentic. So always have the outside edge of the tracer rod tip running
along or even
a whicker inside the edge of the letter. I'll do this for sign attempt
number two. Note that this effect can be exaggerated even more too
depending on
the diameter of the router bit you use. I used a 1/4" straight cut bit,
and this would be the maximum you would probably want to use. However,
different
fonts may dictate different bit widths. For fonts with small points or
lines, a smaller bit is necessary. For larger, block fonts with less
detail, you
could get away with a slightly wider bit etc etc.

Once you have all the edges routed, proceed to clean out the remainder
of the material between the edges, if your font requires it. Again, in
my haste and
anticipation to see how well this tool worked, I didn't do this. I could
have routed them out by hand later on, but its best and easiest to do
this while
the letter is mounted on the board and you are routing away.

With the "J" done, I switched to the lower case "a" sheet from the set,
making sure I aligned both the letter sheet on the board, and moved the
board over
and reclamped it as per the above mentioned spacing process. Then just
continue routing, first by plunging the router then locking it in the
plunged position,
then grasping the trace rod guide handles and working my way around the
letter's edges. Same process for the "y".

With anticipation, I took the board out to check how it all went. And
for a first go I was rather impressed. Apart from the widening issue
mentioned above,
which was entirely my fault, the letters came out really well.
Naturally, how well depends on how steady you can trace the letters on
the sheet using the
trace rod, but it was easier than I had expected to be honest. You will
get best results when you use more uniform lumber with regard to grain
direction,
because cranky grain will have a tendency to make the router and bit
want to wander a little, so you have to be vigilant here.

I ended up chiseling out the middles of the matters on my first sign,
because I should have routed out the middle parts while I was tracing
the letters
- lesson learnt - but you can see from the photo that although my errors
are noticeable, the text came out quite well and is still very readable
and functional.
Also, my second sign effort, see photo, is much better, since I didn't
make the mistakes I made the first time!

Now, to tackle the Script font, which will be a little trickier because
the letters physically join and flow. I'll report back on this one
later...

Finishing a Sign
There are many ways to finish a sign ready for hanging. Firstly,
dimension the sign to final size once all the lettering has been taken
care of. You might
even profile the edge if you like. To get a good contrast of the
letters, what most do is to paint the sign black (or a good contrasting
color to the wood).
Just splash or spray paint all over the sign face. You don't have to be
neat here, but make sure there is a good coating in the letter relief.
Once the
paint is dry, just run the board through your surface planer at a
shallow depth. This will skin the surface of the board and take any
paint on the board
surface away, leaving you with fresh wood on the board surface, and your
relieved letters nice painted black (or whatever color you chose). Now
just apply
a clear protective coat suitable for where the sign will be mounted and
you are done. Easy!

Pantograph vs Sign Making Kits
I have used other sign making kits where you have plastic letter
templates that you rout using a guide bush. while these work ok, and do
the job, you are
limited to just the one or two letter front sets included in the kit.
The Milescraft 3D router pantograph does not have this limitation. Also,
I found
that tracing the letters using the pantograph was just as easy, if not
easier than trying to balance a router on top of a couple rails that
other kits
use to hold their letter templates. There is much more flexibility with
the Pantograph. And, as you can see, you can get pretty good results
from even
your first attempt. Perfection will come with practice. Sure, this is
not going to beat a CNC router, but do you know how much they cost? And
then you
have to often buy the software to use with them too. You are looking at
many thousands... and more like tens of thousands for a CNC router off
the shelf.
The 3D Pantograph is a much cheaper option for the occasional user or
home hobbyist woodworker not looking to make sign making their every day
job.

Conclusion
To be honest, I half suspected the pantograph to be a bit of a pain in
the backside to use just looking at it, but my suspicions have been
rather wrong
in this case. Priced at around AUD$120-$130, the 3D Router Pantograph is
a good step up from Milescraft's more basic Signcrafter kit. I would
definitely
recommend the pantograph if you are keen to try a little more sign
making with a little less frustration.

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