Alvin SL2 Premium 6″ Master-Bow Compass
July 13, 2019 - Comment
This attractive, premium-quality compass is ideal for presentation purposes. Features solid brass construction and a matte chrome finish. Sturdy push-button mechanism engages the scissor-action threading system for quick adjustments that can be fine-tuned with the precision center wheel. Double knee-joint for parallel leg positioning and precise execution of circles up to 14 inches diameter. Adjustable, replaceable lead and needle points. Housed in a break-resistant, velvet-lined case with see-through lid and spare lead.
Product Features
- This attractive, premium-quality compass is ideal for presentation purposes.
- Features solid brass construction and a matte chrome finish.
- Double knee-joint for parallel leg positioning and precise execution of circles up to 14 inches diameter.
- Adjustable, replaceable lead and needle points.
- Size: 6 inches.
Comments
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I have had some great compasses and for a very long time Ok, I have had some great compasses and for a very long time, though I needed to replace a lost tool and this was the prettiest it looked all stainless the clips are Plastic, welcome to the modern age Plastic is good enough most of the time though talk to me in fifty years if you are really curious about plastic.
Probably among the best drafting compasses available. I bought this compass to replace a Pro-Art compass, which is also a gearhead type center wheel bow compass and nearly identical in size. The Pro-Art has a plastic gearhead housing at the apex. This plastic structure is prone to flexure and results in a lack of precision when drawing large circles unless you leave your line very light. The Alvin SL2 is all metal except for the two small cylinders the engage the threads of the center wheel adjustment screw, which are hard plastic. In…
Not a worthy compass. There are a lot of good things about this compass. The quick-adjust function seems to work well without introducing any sort of wobble. The worm gear itself is quick and smooth. It has the potential to be a worthy compass, but ultimately it is not. There are just too many points of failure. The ‘double knee-joint’ was the killer on mine, one of the joints simply cannot be tightened such that it won’t collapse on itself. The other one is better, but still not acceptable. I’m not really sure of…