Gasket cutting services (upload dxf/svg)?
- Thread starter noid
- Start date
I too have a cricut, but what I have outsizes the machine.
Willie Makeit
Well-known member
- Joined
- Dec 30, 2013
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- 920
take your drawing to Office Depot, Kinko's, etc and have a full scale drawing made. Transfer that to the gasket material and grab your X-acto knife
We usually hand cut large gaskets in the field, since the OEMs never provide drawings (they would like to sell you a set, but even that is seldom accurate and ALWAYS ridiculously expensive), but in those cases where we will have the equipment down for more than a few days we will seek out a local gasket supplier to cut from our drawings (or in really large cases, extrude and bond - requires custom tooling). Look at rubber suppliers and ask around, you can always find one within a day's courier range.
Lightning rod
Well-known member
Have not used them myself but these guys look interesting
or
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or
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Just curious: is this for a fully constrained gasket or one loaded just in compression? I ask because FKM compounds (there are several) tend to be creep sensitive in my experience. And, if you think these are fussy and expensive, step into my world of dealing with very large flouro-silicone gaskets (think $6k a sheet).
Loaded only in compression.
The application is a oil pan gasket for an older BMW engine. Most people have issues with sealing using cork (OEM) and compressed paper with NBR filler (felpro, etc).
Modern BMW engines have begun using viton gaskets; and the goal is to bring this over to this engine.
A $50 gasket doesn't seem that bad when talking about an engine I plan to keep indefinitely.
I was aiming to use 75 dur Viton; any thoughts contrary?
To me, that would be a no go gasket - for reasons of creep. Check with your material supplier (since, as I mentioned, a LOT of different formulations for Florinated stuff) to get recommended compression. In any such seal I specify positive stops not only to deal with compression but to load a bit from lateral expansion. Not something you can do in this installation, so use thread pitch to determine how much you are compressing. You will know over time if it is extruding, so when it does, just tighten a bit to the same torque you found when reaching spec compression. 70 duro is a bit soft for an open gasket, but should be workable.
Hope that helps.
Hope that helps.
Bighead38
Well-known member
What do you use that expensive gasket for?
Large power transformers. Just the bushings, turrets, access covers, etc. the main lids are HUGE and we often do custom extrusions for those. The corner splicing of such gaskets is ultra-critical as it can cost literally millions to take one out of service to fix an oil leak. Newer ones tend to have welded on lids for obvious reasons, but a lot of really high maintenance units (furnace transformers in steel mills for instance) mount the winding on the lid instead of the floor so still use gasketed top surfaces.
Turrets (the boxes into which the bushings are mounted) can be large enough to need a 48 x 96" sheet to cut one from. At 6k a shot, you don't want to screw up the design, layout or cutting!!!! Also, only a couple of utilities would use Fluorosilicone - most have the sense to use Nitrile (NBR).
Bighead38
Well-known member
Interesting
Give these guys a call.:
www.lamons.com
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