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Your cart is empty.4.3 out of 5 stars
- #283,827 in Office Products (See Top 100 in Office Products)
- #189 in Drafting Compasses
Product Description
Professional Drawing Compass
Pictured: Model 604 Master Bow Compass
ALVIN drawing compasses span a massive range of sizes, applications, and uses. Our traditional beginner and intermediate level compasses are sure to find themselves right at home in any geometry or art class. Our professional-level compasses are the perfect precision tool that any engineer, draftsman, or professor needs to add to their collection of drawing instruments. These metal drafting compasses can make precision circles from 1/8" up to 22" in diameter with added beam bar.
Patricia
Reviewed in the United States on January 30, 2025
Es muy buena para hacer círculos de gran diámetro.
Rodney Fehr
Reviewed in Canada on June 7, 2023
The brand is phenomenal!!!!
matt m
Reviewed in Canada on July 1, 2021
Perfect exactly what I wanted
Emmo Gruben
Reviewed in Canada on February 15, 2021
Very accurate tool with a long radius. Perfect for large geometric drawings.
To-Be
Reviewed in the United States on December 31, 2021
Good bar compass but as with everything German, the love of plastic is the issue, sooner or later.Cons:Graduations are nothing but a sticker and all the black parts are plastic. Anyway, good engineering can still prevail (even with plastic). Well, it didn’t. The connection point between the two bars is plastic with plastic screws. The molding process has left a slope inside the block so it has a 2 degree tilt.This produces an error in that, it’s pointless to use the ruler on the extension bar. In contrast, a $12 metal ruler is graduated by laser, so why is this $30? There is more… Plastic travel blocks accessories don’t fit well because the plastic is too closed (I just use a thumb nail to spread the plastic a bit as I push the point in.) …Sigh.Pros:Graduation sticker is accurate (LOL).Aluminum bars are light and firm.Accuracy is sufficient for most drafting needs.Comment: Good product if not needing anything past 12 inches on the main bar.
Kvas
Reviewed in the United States on November 10, 2021
This is a well-made drafting instrument, what I missed in the description was that there's thumbwheels at the top of the trammels allowing for easy submillimeter-precision positioning. I'm using it for woodworking where you don't actually need that level of precision but it's nice to know it's there, and it's way better than the usual pencil-on-a-string setup.
Kathy Q.
Reviewed in Canada on April 15, 2021
My husband designs, and he says it works just fine. Just what he needed. Thanks.
mpn1241
Reviewed in the United States on March 4, 2019
Need to cut a large circle for a wood working project. Did the job very nice. Think the price could of been a little lower but overall very pleased with the product.
Customer
Reviewed in Canada on November 6, 2019
I liked the product. Good quality. I would recommend it to others.
L J Reichert
Reviewed in the United States on April 26, 2019
Wanted to add this review, and the attached photos, since I saw so many other reviews of this product saying that it arrived badly packaged and missing pieces. My product arrived quickly and in good condition with all of the pieces shown in the photo. I would say that the quality is good for the price and I was able to draw accurate circles with no problem. A feature that I especially like is that you can lock the pointer and the pencil in position on the rod so that they don't move while you are drawing.
John S.
Reviewed in the United States on August 23, 2017
Perfect for my needs. I have a Staedtler rotary sharpener designed for these drafting leads so I did not have any problems with the beam scale calibration. I think someone reported a problem, but the only thing I can think of is that he used a sanding board to sharpen the leads, which would leave the point off-center, and will screw-up the calibration.
hydeparkchi
Reviewed in the United States on September 8, 2010
Pros:1. Construction quality is good (I disagree with previous reviewer who implied it was cheaply made); the compass is made in Germany and the quality is fine2. The ruler is clearly labeled3. The pivot points/drawing head move back and forth smoothly; easy to fixCons:1. As noted (correctly) by another reviewer, the alignment of the points with the indicator on the ruler is off by about 1/5 inch. This is an annoying design flaw.2. The compass comes with components (2nd beam, extra points, sharpener etc.) in a plastic compartmentalized container, but the whole thing is very flimsy and cheap; there should be a solid plastic case for storing this thing and/or keeping the accessories organized.3. The brand advertised is "Alvin," but the actual product is labeled "Quint Graphics." Presumably the 2 companies are related.Overall, it is good value but the designers should address Cons #1 and #2.
BillP
Reviewed in the United States on May 14, 2009
I have already used this beam compass to mark circles for a cupcake tree requested by my son for his wedding. Works very well. Easy to set up accurately against a ruler, and easy to use. I chose it over one with a built-in ruler because I would probably check the measurement against my own ruler anyway. Comes in its own case which hangs on the wall along with my other tools.
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