Custom U-shaped metal bracket. - Page 1
Forum section: electronics / general

author: Carrington
author_rank: Super Contributor
timestamp: January 13, 2019, 05:13:23 pm
content: Hi folks.Any idea where I can order a custom U-shaped metal bracket online? Cheap and in very low quantity.I attach a 2D design (.svg), steel, thickness 1.5 mm.Thanks!

author: Reckless
author_rank: Frequent Contributor
timestamp: January 15, 2019, 06:43:05 am
content: Let me know if you find it. I have similar need.

author: Jeroen3
author_rank: Super Contributor
timestamp: January 15, 2019, 06:48:43 am
content: What type of metal? We have some small metal workshops nearby that can watercut and bend one for you.You should have those workshops as well. Things get build around there, right?In your drawings, did you account for the bend radius? See Fusion360, it can do this for your.Also, what metal?(tip: search in google maps)

author: xdave
author_rank: Contributor
timestamp: January 15, 2019, 11:17:10 am
content: As Jeroen3 says, a local metal workshop will probably be your cheapest and quickest option for small volume folded parts. Most small town industrial estates will have at least one.Always provide two drawings of your parts to the fabricator:1) Dimensioned 2D drawing with any bend radius or rules from your CAD software clearly stated. Ideally adopt their rules and tolerances into yours, but still print them on the drawing to be safe.2) Dimensioned 3D drawing showing the critical measurements, e.g. if the inner clearance between two parallel faces needs to be 30mm minimum then show that on your drawing and make it clear which faces are dimensioned so they can see if your dimensions are internal, external, need adjusting due to the radius, etc.The 2D drawing is really only to act as a reference - the 3D drawing is what they will use to create your parts. It can be helpful to show an additional 3D drawing with all the mating components attached as a reference if your tolerances are extremely tight.Don't try and provide a multi-part layout or define things like corner finishing in minute detail until you have a good working relationship with the fabricator as it will be quicker (and therefore cheaper) for them to do it than to reverse engineer a badly created drawing.

author: Carrington
author_rank: Super Contributor
timestamp: January 19, 2019, 03:42:35 pm
content: Quote from: Reckless on January 15, 2019, 06:43:05 amLasermaster could be the solution, its price (around 28 GPB + shipping) is acceptable.website:www.lasermaster.co.ukQuote from: Jeroen3 on January 15, 2019, 06:48:43 amThank you!I prefer steel, thickness 1.5 or 2 mm. But I don't know what to do, because the last thing I want is to cause any trouble to anyone.Quote from: Jeroen3 on January 15, 2019, 06:48:43 amQuote from: xdave on January 15, 2019, 11:17:10 amTrust me, not around here.Quote from: Jeroen3 on January 15, 2019, 06:48:43 amI figured something like that... The problem is that I have never used Fusion360 or a similar 3D SW.Quote from: xdave on January 15, 2019, 11:17:10 amThanks for all the tips, I'll keep them in mind.I'm trying to reinforce a Skarsta desk from Ikea. Manufacture this kind of crap should be forbidden, it's a shame, a waste of resources.The bevel gear boxes are manufactured by Ketterer, but they're poorly designed, intentionally (see pictures skarsta_1.jpg & skarsta_2.jpg).Another possible solution would be to replace them with a pair of 3010 also from Ketterer:https://www.ketterer.de/en/products/detailansicht/bevel-gear-with-spindle-unit-3010-3011/I think that this one could be adapted to work. I'm not entirely sure, but seem that the latest versions of this desk are using something similar (see pictures skarsta_new.jpg & 3010_bevel.jpg).Plus, as is easy to find a second-hand Skarsta desk for 100 €, this one may be another possible solution (see picture SSR3L-500x500).

author: Kasper
author_rank: Frequent Contributor
timestamp: January 19, 2019, 06:05:27 pm
content: We've got about 10 of these where I work. They've been great. Easy to assemble and feel solid, other than the gearbox.Did you break one? Or is this preventative?

author: Carrington
author_rank: Super Contributor
timestamp: January 19, 2019, 07:51:49 pm
content: Yes it feel solid, its stability is good enough, but the gearbox... It broke by itself. Just put a few heavy instruments on top and turn the lever.I handmade a cover, aluminum, 1 mm, just for testing (see GearTop.jpg). But I have not clear yet which solution would work best.

author: Carrington
author_rank: Super Contributor
timestamp: January 19, 2019, 08:20:43 pm
content: Just as an example, a few other gear boxes.