|Forum topic by mculik5||posted 12-29-2013 07:24 PM||4243 views||0 times favorited||10 replies|
12-29-2013 07:24 PM
I’m working on a design for a desk that will use Blum Tandem drawer slides. The desk will be built using 3/4” plywood and edgebanding. The Blum specs for the Tandem drawer slides indicate that the interior width of the drawer box must be the cabinet opening width minus 49 mm.
If I want my cabinet to be 18” wide overall, and I’m using 3/4” plywood for the sides, the top of the cabinet box needs to be 16 9/16” wide. This is 420.688 mm. The width of my drawer box then, based on the Blum specs, needs to be 371.688 mm wide. Obviously, it’s not feasible to work at such a high level of accuracy.
My question is this:
If I round the drawer box width to 372 mm, will that cause any kind of binding or poor operation of the drawer slides? I would think Blum would build in (whether intentionally or unintentionally) 0.3 mm of “slop,” but I’ve never used these drawer slides before. Is it perhaps better to round down to 371 mm? How much “slop” do I have with the Tandem drawer slides?
Basically, I want to make sure I can measure things to the millimeter (using a metric tape measure) and achieve a good result, vs. making a 49 mm spacer block and scribing cut lines off of that.
Any input is appreciated. Thanks.