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#61
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Hi Martin, 35 teeth metric module 1 is a good choice. If the pinions are quite cheap, I suggest you get some 25 teeth pinions as well. Then you can choose according to the materials you cut, speeds you need and quality of cutting surface.
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#62
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howdee from Perth!
Im thinking of building this great machine....BUT! the racks are putting this game out of reach..so i did what most boers do....MAAK A PLAN! but will my plan actuallwork ...please help out here guys.....ive found a rack and pinion supplier GATE AUTOMATION SYSTEMS....
right the rack have half inch pitch and the pionions have 17 teeth will this do? thanx.....the steppers will be the Nema 23 with Torque 1.7n.m 245 oz.In. thanx ..oh yes the table size will hold a 125cmx 76cm sheet of stock |
#63
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Half inch pitch teeth will definitely not work. Nema 23's are also dodgy (even with 3-4mm pitch rack).
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#64
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Hi Van,
I did lots of searching for rack in Australia and the only option for the correct rack I could find was TEA. Let me know a total length of rack required and a rough price on what you have been quoted. The rack seems to be comming down in price since I got it acording to some other messages I have received. Jayson. |
#65
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Hey Van,
I've ordered mine from Linear Bearings here in Adelaide (They have offices in most capital cities). I've bought a bit off them before and they gave me a deal i couldn't say no to. $42/m plus $14.40 per pinion (25T) not inclusing GST, so add 10%. So i ordered 3x 2m lengths and 4 pinions which should be sufficient for me. |
#66
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Howdee Gerald
Quote:
please help me understand why half inch wont work...these guys are the top the industry with this system and they use 16 mm pitch ..check it out so i called the guy in Australia...$450.00 for a HALF METRE LENGTH yes mate 450..weel i said my good bye an put the phone down really dispointed but never the less here are the specs for your knowledge...not that you need more you clever bugger! thanx for the great site and product i will be building your machine but in Aliminium and much smaller for cutting out model aircraft parts and some guitar bodys and inlay work... Thanx Boet! the nexen in action http://www.youtube.com/watch?v=bkFzw...rom=PL&index=4 and the pdf files of the actuall product... Last edited by vanhaydn; Sat 21 March 2009 at 23:11.. |
#67
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Cheers Matey!
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Thats great news on the rack..there is a agent here in PERTH YEEHAAAA! of to see the guys on monday! big THANX! |
#68
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Look at the diameter of the driving pinion when you use 1/2" pitch . . . . where will you find the torque, or space to turn that 3" diameter monster?
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#69
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I was just quoted NOK 1200(about US$200) for the racks in 2 meter length, NOK100(about $15) for the pinions in a local store here in Norway. Anyone found a good source for the racks and pinions with reasonable shipping in Europe?
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#70
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http://www.mekanex.se/no/
I was quoted by finnish branch last year - 5 pcs of rack mod 1 , 15x15x2000 price ea net EUR 30:- , taxes excluded 2 pcs spur gear with hub , mod 1 , z=24 , Eur net each 8:- taxes excluded I found Chiaravalli online store but did not contact. And here got it for some 26 euro/2m |
#71
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Quote:
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#72
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I got a quote in Italy Rome: 16 € x meter (module 1 15x15)
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#73
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Contact details
Quote:
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#74
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From another post:
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#75
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Hi I´m not sure how i will drive my machine or even what form it will take, but i found these suppliers that I´d like to share
The Netherlands I found cheap suppliers one for screws and spindels and another for racks, now all i need is a good supplier of cheap steppers and drivers http://www.bwklaver.nl/ for the racks not hardened mod 1 eur 27.65m mod 2 eur 38.05m mod 3 eur 74.15m excl VAT 19% And http://www.mafaha.nl/ 12.50 m for a 20mm spindel Wouter Last edited by cb4; Sat 01 May 2010 at 02:47.. |
#76
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rack and pinion question
Hi Everybody,
I have finished the mechanical built, the only thing missing are the racks and pinions. Apart from Grainger I have not found a local supplier (I am in Puebla, Mexico). I would like to know if somebody could give me an opinion on the following specs. I have everything standard (standard motor with gear box 1:7.2). Spur Gear 20 Pitch, Pitch Dia 1.600 In, Face Width 0.375 In, Number of Teeth 32, Bore Dia 0.375 In, Outside Dia 1.700 In, Overall Length 0.875 In, Hub Dia 1.31 In, Hub Projection 0.50 In, Pressure Angle 14 1/2 Deg, Keyway None, Setscrew Not Included, Steel Material Steel Rack Pitch 20, Teeth per Inch 6.36, Nominal Length 6 Feet, Face Width 0.375 Inch, Overall Thickness 0.375 Inch, Pitch Line to Back 0.325 Inch, 14 1/2 Degrees Pressure Angle Thank you, Tim |
#77
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#78
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Asif, I have retired from the MechMate project. I will mostly avoid direct questions. Sorry, but I cannot spend the time to check everybody's catalogues.
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#79
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Spanish Rack and pinion Supplier:
Para los que deseen adquirir en España Rack y piñones: Empresa: Chiaravalli. Lugar: Barcelona Telefono: 93 844 00 99 Cremallera Módulo1 15x15, de hasta 3 metros de largo Material: Acero F-114 Piñones Módulo1 Z:24 24 dientes. La misma empresa se encarga de mecanizar los piñones al tamaño deseado. Si quieren ver fotos del producto, las añadiré a mi hilo, una vez las tenga en el taller. Last edited by isladelobos; Fri 04 February 2011 at 14:53.. |
#80
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Try misumi jp (online store w/local dealer), they sell:
a. Rack and pinion b. Timing pulley and belt c. Alu-profile, etc |
#81
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and another quote: 8 € x meter .... but I don't think they send the racks outside of italy.
and here another site: 2 meter 16 €, 3m 27 € .... http://translate.google.com/translat...F8&sl=it&tl=en |
#82
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