victorforge Posted February 21, 2023 Share Posted February 21, 2023 I've begun the process of building my first 2x72 belt grinder using Jer Schmidt's plans. I purchased his gen 1 plan a few years ago but never got around to building them. Schmidt's plans are fantastic. I had some of the parts water cut at the cost of an anvil. (I actually made out with this trade) Took advantage of a presidents day 20% coupon at the Horrible freight and bought their 2hp motor for it. I still have to buy all the fasteners, wheels, and belts. I got spring break coming up so hoping to knock it out that week. Quote Link to comment Share on other sites More sharing options...
Latticino Posted February 22, 2023 Share Posted February 22, 2023 Just make sure the motor you bought is rated at least TEFC (or you have an extended warranty). Quote Link to comment Share on other sites More sharing options...
victorforge Posted February 22, 2023 Author Share Posted February 22, 2023 It's rated for continuous use. It's not TEFC rated but it is ODP rated. Quote Link to comment Share on other sites More sharing options...
Latticino Posted February 22, 2023 Share Posted February 22, 2023 ODP (Open Drip Proof) means that the motor windings will be exposed to the metal dust generated from grinding operations. This will likely reduce the lifespan of your motor considerably. I know HF allows easy returns on some items if they fail, but don't know if that applies to motors. You might want to consider other alternatives, or try to work out a way to mount your motor in a filtered box. Quote Link to comment Share on other sites More sharing options...
victorforge Posted February 22, 2023 Author Share Posted February 22, 2023 I’ll just run it till it dies. I’ll probably replace with a VFD and a better motor in the future. Quote Link to comment Share on other sites More sharing options...
gewoon ik Posted February 22, 2023 Share Posted February 22, 2023 A grinder has its windings also uncovered (the cheap brands) especially the ones with thr brushes. they go on for quite a while before letting go. Quote Link to comment Share on other sites More sharing options...
Steve Sells Posted February 22, 2023 Share Posted February 22, 2023 you are asking for trouble not using an enclosed motor, you have been warned Quote Link to comment Share on other sites More sharing options...
gewoon ik Posted February 22, 2023 Share Posted February 22, 2023 I mean angle grinder in my post above steve's (steves?). But i agree. Longlivety ia not something you can aspect from it Quote Link to comment Share on other sites More sharing options...
gewoon ik Posted February 22, 2023 Share Posted February 22, 2023 I don't know how common they are in the us, but here in the eu you find very easy squirrelcage or asychronic engines. They are mostly dustproof as in, no dust gets in with the windings. Quote Link to comment Share on other sites More sharing options...
victorforge Posted February 22, 2023 Author Share Posted February 22, 2023 I'll probably get a used/surplus TEFC 2hp from a nearby industrial surplus place in the future. 4 hours ago, gewoon ik said: I mean angle grinder in my post above steve's (steves?). But i agree. Longlivety ia not something you can aspect from it That's a good point. My cheap angle grinder has exposed coils and has been through XXXX Yet its still chooching. I wonder if I could put a thin mesh filter over the openings. I'd have to watch the temperature though. Quote Link to comment Share on other sites More sharing options...
Steve Sells Posted February 22, 2023 Share Posted February 22, 2023 Finer mesh than grinder dust? Quote Link to comment Share on other sites More sharing options...
gewoon ik Posted February 22, 2023 Share Posted February 22, 2023 47 minutes ago, Steve Sells said: Finer mesh than grinder dust? At the price, so the other motor is a bargain Quote Link to comment Share on other sites More sharing options...
victorforge Posted February 22, 2023 Author Share Posted February 22, 2023 1 hour ago, Steve Sells said: Finer mesh than grinder dust? My 2 dewalt grinders have a rather fine mesh on their ventilation holes that seems to work. Quote Link to comment Share on other sites More sharing options...
gewoon ik Posted February 22, 2023 Share Posted February 22, 2023 Thats more for pieces than dust. Use the engine till it fries and look for a better sealed one Don't put in in the direct path of the dust and debris. Also make sure the fan is not sucking in air from the same direct path. Keep us updated about the running hours of that engine. Quote Link to comment Share on other sites More sharing options...
Irondragon Forge ClayWorks Posted February 22, 2023 Share Posted February 22, 2023 I solved the problem with an old motor sucking in dust. Cut a strip of thin foam rubber used for the chainsaw air filters and wrapped it around the motor's air intake slots. Quote Link to comment Share on other sites More sharing options...
victorforge Posted February 22, 2023 Author Share Posted February 22, 2023 1 hour ago, gewoon ik said: Thats more for pieces than dust. Use the engine till it fries and look for a better sealed one Don't put in in the direct path of the dust and debris. Also make sure the fan is not sucking in air from the same direct path. Keep us updated about the running hours of that engine. I'll attach an hour meter for scientific purposes. Quote Link to comment Share on other sites More sharing options...
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