tag:blogger.com,1999:blog-5483471752664961069.post3235816799848811700..comments2023-12-22T09:21:35.599-08:00Comments on RepRap Log Phase: Fundementally changing Mini Mendel in HeeksCADAnonymoushttp://www.blogger.com/profile/14841570845002675047noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-5483471752664961069.post-19048091096567623142010-10-25T20:44:34.753-07:002010-10-25T20:44:34.753-07:00I am new to the boards and just wanted to say i am...I am new to the boards and just wanted to say i am very very happy to read this blog.Rabiul Islamhttps://www.blogger.com/profile/00942079365587386004noreply@blogger.comtag:blogger.com,1999:blog-5483471752664961069.post-56204928755331265652010-07-13T22:29:37.959-07:002010-07-13T22:29:37.959-07:00Just found I can get 5/16" threaded (whitwort...Just found I can get 5/16" threaded (whitworth) rod ZP 36" for ~$5 in Australia easily from Bunnings (local hardware shop). It is 7.9375mm so close enough to 8mm I think for the z axis. Pitty the round bar is not so easy - requires a specialist store which also has the 8mm threaded rod.<br /><br />What is the OD of the pulleys for the Z axis???Unknownhttps://www.blogger.com/profile/04833709953243571210noreply@blogger.comtag:blogger.com,1999:blog-5483471752664961069.post-23644991795034128912010-07-10T23:41:53.385-07:002010-07-10T23:41:53.385-07:00What prices for the bearings are you using for com...What prices for the bearings are you using for comparison? I saw variations of more than an order of magnitude when I was sourcing my bearings. Ended up getting them for $1.16 each from ebay: <a href="http://cgi.ebay.com/623-ZZ-Double-Shielded-Bearing-3mm-x-10mm-x-4mm-/160393041862?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item25582b97c6#ht_6857wt_905" rel="nofollow">link</a>.whosawhatsis?https://www.blogger.com/profile/12792264289634575186noreply@blogger.comtag:blogger.com,1999:blog-5483471752664961069.post-20757130254101781832010-07-10T15:41:22.770-07:002010-07-10T15:41:22.770-07:00Hmm your right, the STL is the issue, but here'...Hmm your right, the STL is the issue, but here's the funny part. Deleting the STL out of the files does not help, and if I copy components out of the drawing and save it into a non stl document, the behavior follows the pasted parts, even though no STL had been loaded into that document. Really odd stuff, but at least now I know how to aviod the crashing issue.Anonymoushttps://www.blogger.com/profile/14841570845002675047noreply@blogger.comtag:blogger.com,1999:blog-5483471752664961069.post-53427118029801610622010-07-10T15:30:18.830-07:002010-07-10T15:30:18.830-07:00I like your blog by the way. It's nice to see...I like your blog by the way. It's nice to see other people doing some more sophisticated designing in HeeksCAD.Unknownhttps://www.blogger.com/profile/10805635552424713274noreply@blogger.comtag:blogger.com,1999:blog-5483471752664961069.post-5219786434053355312010-07-10T15:29:06.252-07:002010-07-10T15:29:06.252-07:00Do you have an imported stl in your file? There&#...Do you have an imported stl in your file? There's a known bug in heekscad that if the file has an stl, the undo causes a crash.Unknownhttps://www.blogger.com/profile/10805635552424713274noreply@blogger.comtag:blogger.com,1999:blog-5483471752664961069.post-30494887438594669922010-07-10T15:09:14.238-07:002010-07-10T15:09:14.238-07:00Ohh I agree the Mini Mendel x carriage is strange,...Ohh I agree the Mini Mendel x carriage is strange, I am redesigning also, but again the fat m8 bearings are challenging, but we only have to solve these issues once!Anonymoushttps://www.blogger.com/profile/14841570845002675047noreply@blogger.comtag:blogger.com,1999:blog-5483471752664961069.post-34869152817547619922010-07-10T15:07:13.531-07:002010-07-10T15:07:13.531-07:00I am using m8 bolts for all the bearings, m8 bolts...I am using m8 bolts for all the bearings, m8 bolts can be had for $10 for 100. Even though the bolts are more expensive, the total cost of Mini Mendel is reduces by nearly $30 by going to the M8 bolts and bearings. That's significant.<br /><br />The pinch block makes since. Can't wait to see your work!Anonymoushttps://www.blogger.com/profile/14841570845002675047noreply@blogger.comtag:blogger.com,1999:blog-5483471752664961069.post-17628082189110133202010-07-10T14:24:15.801-07:002010-07-10T14:24:15.801-07:00I'm working on a similar project. Basically, I...I'm working on a similar project. Basically, I'm remaking the entire design parametrically in openscad, using the stl of the assembled mini mendel as a reference. I'm learning a lot from assembling my own mini mendel while I work (like that the x-carriage design that I thought was genius actually sucks), but it's also dividing my attention and slowing me down.<br /><br />The 608 bearings are an interesting choice. I've been working under the assumption that you have to use bearings with a bore that matches your screw diameter. I'm planning to get the bearings all the same size by attaching the leadscrew bearings to the z-belt pullies, rather than putting the leadscrews through them.<br /><br />Also, as with the y-bar clamp you mentioned, I'm trying to redesign all of the smooth rod clamps to use pinch blocks rather than multiple parts.whosawhatsis?https://www.blogger.com/profile/12792264289634575186noreply@blogger.com