Design your own Contra alto Mouthpiece
Mouthpieces for Contra Alto Clarinet and Contra Bass Clarinet are rare and its difficult to find mouthpieces that have nonstandard facings or tip openings. Therefore Bas_en_Sax decided to offer 3D printed Contra Alto and Contra bass Mouthpieces according to your own design. You can order them by email.
We can offer a wide variety of designs and a wide variety of print materials and colours.
The basic parameters are as follows:
(R = round window
S = Square window)
|Facing length||Top opening|
You can order any combination of facing length and tip opening and also request your one type indication on the side of the mouthpiece.
We print the prototype mouthpieces ourselves and use PLA in basic colours (black, dark red or transparent) to do that. The current printer is an FDM type.
The list of parameters that define the mouthpiece design is long. In fact each parameter can be changed. The standard values are derived from a Bundy Contra Alto mouthpiece.
|Explanation (all lengths and diameters in [mm])||Suggestion|
|Series||"CA"||"Selmer||"Leo Bundy"||"Vito"||just text||Add your own initials|
|Type||"26-22"||C*||3||just text||Combine facing and opening|
|d_barrel_max||38||38.7||38.5||38.5||max diameter of the barrel|
|l_shank||20.4||20.0||20.0||23.5||length of the shank in z direction|
|l_cork||14.3||10.5||10.5||16.5||length of the cork part on the shank|
|d_shank||32||32||31.2||35.5||diameter of the shank|
|d_shank_cork||29.4||29.6||29.6||33.1||diameter of the part where cork is mounted|
|ld_shank||3||4.5||5.5||3.5||length of the edge between cork and barrel|
|Table and tip parameters|
|l_table||92||93.3||91.4||90.1||length of the tabel (in Z direction)||[90-94]|
|p_table||5.5||5||6||6.5||angle of the table relative to the vertical centre line||don't change|
|w_table-tip||20||19.5||21||20.5||width of the table at the tip||[19..21]|
|w_table-shank||16||16||15.5||14.5||width of the table at the shank||[9..21]|
|w_table_barrel||17.7||18.6||18.7||19||width of the tabel at the bottom of the window||[15..21]|
|h_tip||2.0||??||??||1.85||the opening between the reed and the tip||[1.5..3.0]|
|l_facing||26||??||25||25||lenght of the facing||[20..30]|
|r_tip||21.5||21.5||21.5||20.5||radius of the tip||[20-22]|
|l_tip_rail||1||1||1||1||thickness of the tip rail||[0.5.. 1.5]|
|p_beak_outside||33||30||27.1||29.5||angle of the beak outside relative to the table||[30..36]|
|p_beak_inside||27||29||27||28||angle of the beak inside relative to the table||must be smaller then p_beak_outside|
|l_beak||48||46||48||42||length of the outside beak in z-direction|
|r_rounding_beak||8||8||8||8||radius of the transition from beak to top of the body||[0..8]|
|w_window_tip||17.6||17||18||19.2||width of the window at the tip|
|w_window_barrel||11.6||12.1||11.2||13||width of the window at the bottom|
|l_window||46.5||46.5||46.5||45||length of the window (the straight part if rounded)|
|has_rounded_window||false||false||false||false||not vailable yet (10-10-22)|
|d_bore_top||24.7||24.8||24.7||29.5||diameter of the top of the bore|
|d_bore_bottom||24.8||24.9||24.8||26||diameter of the bottomof the bore|
|l_bore||60||58||62.5||55||length of the bore (the straight part if rounded)|
|roudingfactor_top||0.6||~0.5||~0,5||~0,25||[0 (flat) .. 1(sphere)]|
|w_chamber_bore||15||16.5||17.5||width of the upper part of the chamber where it enters the bore|
|h_bore_chamber||21||21||height of the opening from bore to chamber (the height of the trapezium)|
|w_bore_chamber||12||11.5||14||(bad name ;-) width of the part where the window side of the chamber enters the bore. Often it is smaller than w_chamber_bore and creates a trapezium shape.|
|smooth_chamber_to_bore||false||false||false||false||used in saxophone mouthpieces||don't change|
|has_rounded_chamber||false||false||false||false||used in saxophone mouthpieces but maybe nice for clarinet|
|l_baffle||0||5||5||5||The area of the beak near the tip. It sometimes has a during small length a lower angle that can easy the playing. It is used in saxophone mouthpieces||[0..5]|
|p_baffle||27||12||12||12||angle of the baffle||p_beak_inside*[0.4..1]|
We print the prototype ourselves because they need some post processing like sanding the table and parts of the chambre and for gluing a strip of cork.
We print in PLA using FDM technology. It is even possible to print it in meta see (see https://www.hubs.com/).
We can ship world wide.
Using the 3D printed prototypes is at your own risk. We think the risk is low, but we cannot assure that in all cases and with all materials. Some material can be toxic and also salivation in the mouthpiece can promote bacterial development. In any case, we recommend that you regularly clean the mouthpiece with, for example, alcohol.
The price of each prototype printed in PLA will be about 50 euro and is made up of 15 euro preparation and printing costs, 25 euro for postprocessing and 10 to 20 euro for administration and shipping.
Our own high resolution prints in PETG are 120 euro per piece. It is also possible to print it on the material of your choice at https://www.hubs.com/.
The price is made up of 90 euro preparation costs (needed for high accuracy rendering) the actual printing costs, 25 euro for postprocessing and 10 to 20 euro for administration and shipping.